#8A1663

sRGB · 138 / 22 / 99

#8A1663 belongs to the rose family. Its hex code tells a screen to mix 138 red, 22 green and 99 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 320.2° lands in the rose region. Its 72.5% saturation makes it strong in color at this lightness. HSL lightness is 31.4% 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 (8.84:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 138, 22, 99
HSL: 320.17°, 72.50%, 31.37%
HSV / HSB: 320.17°, 84.06%, 54.12%
CMYK (approx.): 0.00%, 84.06%, 28.26%, 45.88%
CIE XYZ (D65, Y = 100 for white): 13.020, 6.879, 12.447
CIELAB (D65, 2° observer): 31.529, 52.879, -15.111
WCAG relative luminance: 0.06878
24-bit decimal: 9049699

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 #8A1663 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 · 2.38:1

Normal text: Fail
Large text: Fail

White text · 8.84:1

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

#168A3D sits half a turn (180°) from #8A1663 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.

#8A1663 #168A3D

Analogous

#77168A and #8A1629 sit 30° to either side of #8A1663. 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.

#77168A #8A1663 #8A1629

Triadic

#8A1663, #638A16 and #16638A are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#8A1663 #638A16 #16638A

Split complementary

Start at #8A1663 and look across the wheel. #298A16 and #168A77 sit 30° to either side of its exact opposite, giving you two different accent choices.

#8A1663 #298A16 #168A77

Square

Starting with #8A1663, each quarter turn (90°) takes you to the next hue: #8A7716, #168A3D, then #16298A. Across the square, #8A1663 pairs with #168A3D, and #8A7716 with #16298A.

#8A1663 #8A7716 #168A3D #16298A

Tetradic

#8A1663 and #168A3D are opposites, as are #8A3D16 and #16638A. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#8A1663 #8A3D16 #168A3D #16638A

Tints

Mixing #8A1663 with white in 20% steps produces this scale. The first mixture, #A14582, keeps 80% of the original. By #E8D0E0, the mixture is 80% white.

#8A1663 #A14582 #B973A1 #D0A2C1 #E8D0E0 #FFFFFF

Shades

Mixing #8A1663 with black in 20% steps produces this scale. The first mixture, #6E124F, keeps 80% of the original. By #1C0414, the mixture is 80% black.

#8A1663 #6E124F #530D3B #370928 #1C0414 #000000

Tones

Mixing #8A1663 with middle gray in 20% steps produces this scale. The first mixture, #882B69, keeps 80% of the original. By #826B7A, the mixture is 80% middle gray.

#8A1663 #882B69 #86406F #845674 #826B7A #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

#8A1663

RGB

rgb(138 22 99)

HSL

hsl(320.172 72.500% 31.373%)

CSS example

.color-sample {
  background-color: #8A1663;
  color: #FFFFFF;
}

Channel breakdown

RGB

#8A1663 uses 138 red, 22 green and 99 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 54.1%

Green 8.6%

Blue 38.8%

CMYK

A simple CMYK estimate for #8A1663 is 0.0% cyan, 84.1% magenta, 28.3% yellow and 45.9% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 0.0%

Magenta 84.1%

Yellow 28.3%

Black 45.9%

Nearby colors

The nearest shorthand match is #881166. Its matching digit pairs let you write it as #816 in CSS. For a modern design, keep #8A1663 when you want an exact match. Use its web-safe neighbor, #990066, when matching a legacy palette of 216 colors.

Nearest shorthand · #881166 Nearest web-safe · #990066

Gradient to complement

#8A1663 #77295D #633D56 #505050 #3D634A #297743 #168A3D

Color vision previews

Compare how #8A1663 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.

#283E65

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.

#4C5160

Tritanopia

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

#94123C

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.

#5B3763

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.

#634461

Tritanomaly (50%)

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

#8A1D58

Grayscale (luminance)

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

#4A4A4A

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.

#703758

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 0.25415 G 0.00802 B 0.12477

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 0.49611 G 0.13430 B 0.37886

Linear Display P3

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

R 0.21045 G 0.01619 B 0.11853

CIE xyY

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

x 0.403 y 0.213 Y 6.879

CMY

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

C % 45.882 M % 91.373 Y % 61.176

Binary RGB

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

10001010 00010110 01100011