#CEBF21

sRGB: 206 / 191 / 33

Celestial flames fracture ancient heavens
Restless constellations transform the fabric of existence
Distant echoes surrender to silence

#CEBF21 belongs to the yellow family. Its hex code tells a screen to mix 206 red, 191 green and 33 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 54.8° lands in the yellow region. Its 72.4% saturation makes it strong in color at this lightness. HSL lightness is 46.9% on a scale from black (0%) to white (100%). Of black and white lettering, black has the clearer light-to-dark separation on this background (11.10:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 206, 191, 33
HSL: 54.80°, 72.38%, 46.86%
HSV / HSB: 54.80°, 83.98%, 80.78%
CMYK (approx.): 0.00%, 7.28%, 83.98%, 19.22%
CIE XYZ (D65, Y = 100 for white): 44.358, 50.494, 8.849
CIELAB (D65, 2° observer): 76.371, -10.317, 72.637
WCAG relative luminance: 0.50493
24-bit decimal: 13549345

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 #CEBF21 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: 11.10:1

Normal text: AAA
Large text: AAA

White text: 1.89:1

Normal text: Fail
Large text: Fail

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

#2130CE sits half a turn (180°) from #CEBF21 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.

#CEBF21 #2130CE

Analogous

#CE6921 and #86CE21 sit 30° to either side of #CEBF21. 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.

#CE6921 #CEBF21 #86CE21

Triadic

#CEBF21, #21CEBF and #BF21CE are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#CEBF21 #21CEBF #BF21CE

Split complementary

Start at #CEBF21 and look across the wheel. #2186CE and #6921CE sit 30° to either side of its exact opposite, giving you two different accent choices.

#CEBF21 #2186CE #6921CE

Square

Starting with #CEBF21, each quarter turn (90°) takes you to the next hue: #21CE69, #2130CE, then #CE2186. Across the square, #CEBF21 pairs with #2130CE, and #21CE69 with #CE2186.

#CEBF21 #21CE69 #2130CE #CE2186

Tetradic

#CEBF21 and #2130CE are opposites, as are #30CE21 and #BF21CE. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#CEBF21 #30CE21 #2130CE #BF21CE

Tints

Mixing #CEBF21 with white in 20% steps produces this scale. The first mixture, #D8CC4D, keeps 80% of the original. By #F5F2D3, the mixture is 80% white.

#CEBF21 #D8CC4D #E2D97A #EBE5A6 #F5F2D3 #FFFFFF

Shades

Mixing #CEBF21 with black in 20% steps produces this scale. The first mixture, #A5991A, keeps 80% of the original. By #292607, the mixture is 80% black.

#CEBF21 #A5991A #7C7314 #524C0D #292607 #000000

Tones

Mixing #CEBF21 with middle gray in 20% steps produces this scale. The first mixture, #BEB234, keeps 80% of the original. By #908D6D, the mixture is 80% middle gray.

#CEBF21 #BEB234 #AFA647 #9F995A #908D6D #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

#CEBF21

RGB

rgb(206 191 33)

HSL

hsl(54.798 72.385% 46.863%)

CSS example

.color-sample {
  background-color: #CEBF21;
  color: #000000;
}

Channel breakdown

RGB

#CEBF21 uses 206 red, 191 green and 33 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 80.8%

Green 74.9%

Blue 12.9%

CMYK

A simple CMYK estimate for #CEBF21 is 0.0% cyan, 7.3% magenta, 84.0% yellow and 19.2% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 0.0%

Magenta 7.3%

Yellow 84.0%

Black 19.2%

Nearby colors

The nearest shorthand match is #CCBB22. Its matching digit pairs let you write it as #CB2 in CSS. For a modern design, keep #CEBF21 when you want an exact match. Use its web-safe neighbor, #CCCC33, when matching a legacy palette of 216 colors.

Nearest shorthand: #CCBB22 Nearest web-safe: #CCCC33

Gradient to complement

#CEBF21 #B1A73E #948F5B #787878 #5B6094 #3E48B1 #2130CE

Color vision previews

Compare how #CEBF21 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.

#D1B800

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.

#D6BF30

Tritanopia

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

#DEB1A3

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.

#D1BB07

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.

#D3BF2A

Tritanomaly (50%)

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

#D2BB6A

Grayscale (luminance)

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

#BCBCBC

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.

#C5BE8B

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 0.61721 G 0.52100 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 0.79781 G 0.75107 B 0.27644

Linear Display P3

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

R 0.60013 G 0.52419 B 0.06211

CIE xyY

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

x 0.428 y 0.487 Y 50.494

CMY

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

C % 19.216 M % 25.098 Y % 87.059

Binary RGB

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

11001110 10111111 00100001