#500021

sRGB · 80 / 0 / 33

#500021 belongs to the rose family. Its hex code tells a screen to mix 80 red, 0 green and 33 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 335.2° lands in the rose region. Its 100.0% saturation makes it strong in color at this lightness. HSL lightness is 15.7% 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 (15.41:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 80, 0, 33
HSL: 335.25°, 100.00%, 15.69%
HSV / HSB: 335.25°, 100.00%, 31.37%
CMYK (approx.): 0.00%, 100.00%, 58.75%, 68.63%
CIE XYZ (D65, Y = 100 for white): 3.583, 1.816, 1.601
CIELAB (D65, 2° observer): 14.488, 36.233, 3.575
WCAG relative luminance: 0.01815
24-bit decimal: 5242913

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 #500021 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 · 1.36:1

Normal text: Fail
Large text: Fail

White text · 15.41:1

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. 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

#00502F sits half a turn (180°) from #500021 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.

#500021 #00502F

Analogous

#500049 and #500700 sit 30° to either side of #500021. 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.

#500049 #500021 #500700

Triadic

#500021, #215000 and #002150 are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#500021 #215000 #002150

Split complementary

Start at #500021 and look across the wheel. #005007 and #004950 sit 30° to either side of its exact opposite, giving you two different accent choices.

#500021 #005007 #004950

Square

Starting with #500021, each quarter turn (90°) takes you to the next hue: #495000, #00502F, then #070050. Across the square, #500021 pairs with #00502F, and #495000 with #070050.

#500021 #495000 #00502F #070050

Tetradic

#500021 and #00502F are opposites, as are #502F00 and #002150. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#500021 #502F00 #00502F #002150

Tints

Mixing #500021 with white in 20% steps produces this scale. The first mixture, #73334D, keeps 80% of the original. By #DCCCD3, the mixture is 80% white.

#500021 #73334D #96667A #B999A6 #DCCCD3 #FFFFFF

Shades

Mixing #500021 with black in 20% steps produces this scale. The first mixture, #40001A, keeps 80% of the original. By #100007, the mixture is 80% black.

#500021 #40001A #300014 #20000D #100007 #000000

Tones

Mixing #500021 with middle gray in 20% steps produces this scale. The first mixture, #5A1A34, keeps 80% of the original. By #76666D, the mixture is 80% middle gray.

#500021 #5A1A34 #633347 #6D4D5A #76666D #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

#500021

RGB

rgb(80 0 33)

HSL

hsl(335.250 100.000% 15.686%)

CSS example

.color-sample {
  background-color: #500021;
  color: #FFFFFF;
}

Channel breakdown

RGB

#500021 uses 80 red, 0 green and 33 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 31.4%

Green 0.0%

Blue 12.9%

CMYK

A simple CMYK estimate for #500021 is 0.0% cyan, 100.0% magenta, 58.7% yellow and 68.6% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 0.0%

Magenta 100.0%

Yellow 58.7%

Black 68.6%

Nearby colors

The nearest shorthand match is #550022. Its matching digit pairs let you write it as #502 in CSS. For a modern design, keep #500021 when you want an exact match. Use its web-safe neighbor, #660033, when matching a legacy palette of 216 colors.

Nearest shorthand · #550022 Nearest web-safe · #660033

Gradient to complement

#500021 #430D23 #351B26 #282828 #1B352A #0D432D #00502F

Color vision previews

Compare how #500021 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.

#181B22

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.

#2D2A1F

Tritanopia

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

#580010

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.

#341721

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.

#392120

Tritanomaly (50%)

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

#50011C

Grayscale (luminance)

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

#252525

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.

#3F1823

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 0.08022 G 0.00000 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 0.28489 G 0.03440 B 0.12946

Linear Display P3

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

R 0.06598 G 0.00266 B 0.01522

CIE xyY

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

x 0.512 y 0.259 Y 1.816

CMY

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

C % 68.627 M % 100.000 Y % 87.059

Binary RGB

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

01010000 00000000 00100001