Hex Values #A01421

#A01421

sRGB: 160 / 20 / 33

Radiant blossoms linger without sound
Fragile reflections breathe beneath silver clouds
Distant echoes surrender to silence

#A01421 belongs to the red family. Its hex code tells a screen to mix 160 red, 20 green and 33 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 354.4° lands in the red region. Its 77.8% saturation makes it strong in color at this lightness. HSL lightness is 35.3% on a scale from black (0%) to white (100%). Of black and white lettering, white has the clearer light-to-dark separation on this background (8.03:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit)
160, 20, 33
HSL
354.43°, 77.78%, 35.29%
HSV / HSB
354.43°, 87.50%, 62.75%
CMYK (approx.)
0.00%, 87.50%, 79.38%, 37.25%
CIE XYZ (D65, Y = 100 for white)
15.022, 8.085, 2.209
CIELAB (D65, 2° observer)
34.159, 54.128, 31.942
WCAG relative luminance
0.08084
24-bit decimal
10490913

CMYK uses a profile-free approximation. Printed output depends on the press, ink and paper. Lab uses a D65 white point.

Text contrast

Contrast tells you how clearly lettering separates from #A01421 in light and dark. The ratio compares relative luminance, a measure of light weighted for human vision. Identical colors give 1:1 and black against white gives 21:1. A ratio of 2.99:1 falls just below the 3:1 AA minimum for large text. Body text needs at least 4.5:1 because its finer strokes are harder to distinguish.

Black text: 2.62:1

Normal text: Fail
Large text: Fail

White text: 8.03:1

Normal text: AAA
Large text: AAA

AA and AAA are WCAG accessibility levels. AAA sets a higher bar: 7:1 for normal text and 4.5:1 for large text. Large text begins at 18 pt regular or 14 pt bold. Ratings use the unrounded ratio.

Reference: WCAG text contrast guidance

Palettes & scales

Harmonies rotate the hue. Scales mix the starting color with white, black or middle gray in 20% steps in encoded sRGB.

Complementary

#14A093 sits half a turn (180°) from #A01421 on the HSL wheel. Keeping saturation and lightness steady while crossing to the opposite hue gives you a contrasting accent. Check text contrast separately before using the pair for lettering.

Analogous

#A01467 and #A04D14 sit 30° to either side of #A01421. The three hues are neighbors on the wheel, so you can change the color of a border or highlight while keeping it close to the original.

Triadic

#A01421, #21A014 and #1421A0 are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

Split complementary

Start at #A01421 and look across the wheel. #14A04D and #1467A0 sit 30° to either side of its exact opposite, giving you two different accent choices.

Square

Starting with #A01421, each quarter turn (90°) takes you to the next hue: #67A014, #14A093, then #4D14A0. Across the square, #A01421 pairs with #14A093, and #67A014 with #4D14A0.

Tetradic

#A01421 and #14A093 are opposites, as are #A09314 and #1421A0. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

Tints

Mixing #A01421 with white in 20% steps produces this scale. The first mixture, #B3434D, keeps 80% of the original. By #ECD0D3, the mixture is 80% white.

Shades

Mixing #A01421 with black in 20% steps produces this scale. The first mixture, #80101A, keeps 80% of the original. By #200407, the mixture is 80% black.

Tones

Mixing #A01421 with middle gray in 20% steps produces this scale. The first mixture, #9A2A34, keeps 80% of the original. By #866A6D, the mixture is 80% middle gray.

Copy color codes

Hex, RGB and HSL are three ways to write this screen color. Paste any of them into a CSS color property.

Hex

#A01421

RGB

rgb(160 20 33)

HSL

hsl(354.429 77.778% 35.294%)

CSS example

.color-sample {
  background-color: #A01421;
  color: #FFFFFF;
}

Channel breakdown

RGB

#A01421 uses 160 red, 20 green and 33 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 62.7%
Green 7.8%
Blue 12.9%

CMYK

A simple CMYK estimate for #A01421 is 0.0% cyan, 87.5% magenta, 79.4% yellow and 37.3% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 0.0%
Magenta 87.5%
Yellow 79.4%
Black 37.3%

Nearby colors

The nearest shorthand match is #991122. Its matching digit pairs let you write it as #912 in CSS. For a modern design, keep #A01421 when you want an exact match. Use its web-safe neighbor, #990033, when matching a legacy palette of 216 colors.

Gradient to complement

Color vision previews

Compare how #A01421 appears in each simulation. When two chart lines or status indicators become hard to tell apart, a label, shape or line pattern gives readers another way to distinguish them. Individual perception varies.

Protanopia

A red–green color vision deficiency. Without a distinct response from long-wavelength cones, some reds and greens can look alike, and reds can appear darker.

#443D20

Deuteranopia

A red–green color vision deficiency. Without a distinct response from medium-wavelength cones, some greens can be difficult to distinguish from reds or browns.

#665B1B

Tritanopia

A blue–yellow color vision deficiency. Without a distinct response from short-wavelength cones, blue can resemble green, and yellow can resemble pink.

#B1001B

Protanomaly (50%)

An altered long-wavelength cone response can make reds appear dimmer and harder to distinguish from greens. This swatch shows the model’s halfway setting.

#71381E

Deuteranomaly (50%)

An altered medium-wavelength cone response can reduce the visible difference between reds and greens. This swatch shows the model’s halfway setting.

#7A4B1C

Tritanomaly (50%)

An altered short-wavelength cone response can make blue harder to distinguish from green. This swatch shows the model’s halfway setting.

#A11021

Grayscale (luminance)

This design check removes hue and preserves relative luminance so you can compare light and dark areas.

#505050

Partial grayscale (50% blend)

This design check mixes the original color halfway toward its grayscale equivalent in linear light. Use it to see how a design holds up as color fades.

#803B3E

Reference: National Eye Institute: Types of Color Vision Deficiency

Technical reference

CAM16 and CIECAM02 below assume D65 white, an average surround, background Y of 20 against white at 100, and adapting luminance of 4.07 cd/m².

Linear sRGB

These channels scale with emitted light. Use them for lighting calculations and physically meaningful blends.

R 0.35153 G 0.00700 B 0.01521

Display P3

P3 displays can reproduce a wider range of reds and greens. These coordinates reproduce this same sRGB swatch on a color-managed P3 display.

R 0.57520 G 0.14479 B 0.15324

Linear Display P3

These P3 channels are proportional to light, before display encoding.

R 0.29036 G 0.01843 B 0.02036

CIE xyY

The x and y coordinates locate chromaticity on a diagram. Y gives relative luminance on a scale where white is 100.

x 0.593 y 0.319 Y 8.085

CMY

Ideal cyan, magenta and yellow are the complements of the encoded red, green and blue channels.

C % 37.255 M % 92.157 Y % 87.059

Binary RGB

Each eight-bit group represents one channel. Together they store the 24-bit hex color.

10100000 00010100 00100001

Android ARGB

Android packs alpha, red, green and blue into a signed integer. FF means fully opaque.

0xFFA01421 -6286303

CAM16 JCh

J rates lightness relative to white. Q estimates brightness. C describes chroma, M the strength of the color sensation, and s its strength relative to brightness.

Lightness J 26.896 Chroma C 74.433 Hue h° 21.140

CAM16 JMh

J rates lightness relative to white. Q estimates brightness. C describes chroma, M the strength of the color sensation, and s its strength relative to brightness.

Lightness J 26.896 Colorfulness M 53.809 Hue h° 21.140

CAM16 Jsh

J rates lightness relative to white. Q estimates brightness. C describes chroma, M the strength of the color sensation, and s its strength relative to brightness.

Lightness J 26.896 Saturation s 91.581 Hue h° 21.140

CAM16 QCh

J rates lightness relative to white. Q estimates brightness. C describes chroma, M the strength of the color sensation, and s its strength relative to brightness.

Brightness Q 64.157 Chroma C 74.433 Hue h° 21.140

CAM16 QMh

J rates lightness relative to white. Q estimates brightness. C describes chroma, M the strength of the color sensation, and s its strength relative to brightness.

Brightness Q 64.157 Colorfulness M 53.809 Hue h° 21.140

CAM16 Qsh

J rates lightness relative to white. Q estimates brightness. C describes chroma, M the strength of the color sensation, and s its strength relative to brightness.

Brightness Q 64.157 Saturation s 91.581 Hue h° 21.140

CAM16 UCS JMh

Uniform-space coordinates make distances between nearby colors easier to compare.

J′ 38.479 M′ 35.113 Hue h° 21.140

CAM16 UCS Jab

Uniform-space coordinates make distances between nearby colors easier to compare.

J′ 38.479 a′ 32.750 b′ 12.663

CIECAM02

An earlier appearance model used in color management. Compare its predictions under the same viewing conditions as CAM16.

J 27.372 C 72.316 h° 24.257 Q 64.716 M 52.279 s 89.879

Cite this page

Choose the style requested by your instructor. The access date records when you consulted this entry. For IEEE, add the reference number assigned in your paper.

MLA

Charnell, Justin. “#A01421 Hex Color.” Hex Values, https://hexvalues.com/colors/a01421/. Accessed .

APA

Charnell, J. (n.d.). #A01421 hex color. Hex Values. Retrieved , from https://hexvalues.com/colors/a01421/

Chicago

Charnell, Justin. “#A01421 Hex Color.” Hex Values. Accessed . https://hexvalues.com/colors/a01421/.

Chicago (author-date)

Charnell, Justin. n.d. “#A01421 Hex Color.” Hex Values. Accessed . https://hexvalues.com/colors/a01421/.

IEEE

J. Charnell. “#A01421 Hex Color.” Hex Values. Accessed: . [Online]. Available: https://hexvalues.com/colors/a01421/

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