#190821

sRGB: 25 / 8 / 33

#190821 belongs to the violet family. Its hex code tells a screen to mix 25 red, 8 green and 33 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 280.8° lands in the violet region. Its 61.0% saturation makes it partway between gray and the most vivid version of this hue at this lightness. HSL lightness is 8.0% 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 (19.13:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 25, 8, 33
HSL: 280.80°, 60.98%, 8.04%
HSV / HSB: 280.80°, 75.76%, 12.94%
CMYK (approx.): 24.24%, 75.76%, 0.00%, 87.06%
CIE XYZ (D65, Y = 100 for white): 0.762, 0.490, 1.493
CIELAB (D65, 2° observer): 4.428, 12.139, -12.650
WCAG relative luminance: 0.00490
24-bit decimal: 1640481

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 #190821 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: 1.10:1

Normal text: Fail
Large text: Fail

White text: 19.13:1

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

#102108 sits half a turn (180°) from #190821 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.

#190821 #102108

Analogous

#0C0821 and #21081D sit 30° to either side of #190821. 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.

#0C0821 #190821 #21081D

Triadic

#190821, #211908 and #082119 are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#190821 #211908 #082119

Split complementary

Start at #190821 and look across the wheel. #1D2108 and #08210C sit 30° to either side of its exact opposite, giving you two different accent choices.

#190821 #1D2108 #08210C

Square

Starting with #190821, each quarter turn (90°) takes you to the next hue: #210C08, #102108, then #081D21. Across the square, #190821 pairs with #102108, and #210C08 with #081D21.

#190821 #210C08 #102108 #081D21

Tetradic

#190821 and #102108 are opposites, as are #210810 and #082119. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#190821 #210810 #102108 #082119

Tints

Mixing #190821 with white in 20% steps produces this scale. The first mixture, #47394D, keeps 80% of the original. By #D1CED3, the mixture is 80% white.

#190821 #47394D #756B7A #A39CA6 #D1CED3 #FFFFFF

Shades

Mixing #190821 with black in 20% steps produces this scale. The first mixture, #14061A, keeps 80% of the original. By #050207, the mixture is 80% black.

#190821 #14061A #0F0514 #0A030D #050207 #000000

Tones

Mixing #190821 with middle gray in 20% steps produces this scale. The first mixture, #2E2034, keeps 80% of the original. By #6B686D, the mixture is 80% middle gray.

#190821 #2E2034 #423847 #57505A #6B686D #808080

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

#190821

RGB

rgb(25 8 33)

HSL

hsl(280.800 60.976% 8.039%)

CSS example

.color-sample {
  background-color: #190821;
  color: #FFFFFF;
}

Channel breakdown

RGB

#190821 uses 25 red, 8 green and 33 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 9.8%

Green 3.1%

Blue 12.9%

CMYK

A simple CMYK estimate for #190821 is 24.2% cyan, 75.8% magenta, 0.0% yellow and 87.1% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 24.2%

Magenta 75.8%

Yellow 0.0%

Black 87.1%

Nearby colors

The nearest shorthand match is #110022. Its matching digit pairs let you write it as #102 in CSS. For a modern design, keep #190821 when you want an exact match. Use its web-safe neighbor, #000033, when matching a legacy palette of 216 colors.

Nearest shorthand: #110022 Nearest web-safe: #000033

Gradient to complement

#190821 #180C1D #161019 #151515 #131910 #121D0C #102108

Color vision previews

Compare how #190821 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.

#030E22

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.

#071020

Tritanopia

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

#180C13

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.

#0D0D21

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.

#0E0E21

Tritanomaly (50%)

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

#180A1D

Grayscale (luminance)

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

#0F0F0F

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.

#150C1A

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 0.00972 G 0.00243 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 0.08919 G 0.03450 B 0.12416

Linear Display P3

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

R 0.00843 G 0.00267 B 0.01419

CIE xyY

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

x 0.278 y 0.179 Y 0.490

CMY

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

C % 90.196 M % 96.863 Y % 87.059

Binary RGB

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

00011001 00001000 00100001