#CBFFFF

sRGB: 203 / 255 / 255

Celestial flames rise against oblivion
Unbridled forces transform the fabric of existence
Celestial symphonies echo beyond eternity

#CBFFFF belongs to the cyan family. Its hex code tells a screen to mix 203 red, 255 green and 255 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 180.0° lands in the cyan region. Its 100.0% saturation makes it strong in color at this lightness. HSL lightness is 89.8% 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 (19.29:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 203, 255, 255
HSL: 180.00°, 100.00%, 89.80%
HSV / HSB: 180.00°, 20.39%, 100.00%
CMYK (approx.): 20.39%, 0.00%, 0.00%, 0.00%
CIE XYZ (D65, Y = 100 for white): 78.435, 91.435, 108.127
CIELAB (D65, 2° observer): 96.589, -16.309, -5.404
WCAG relative luminance: 0.91437
24-bit decimal: 13369343

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 #CBFFFF 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: 19.29:1

Normal text: AAA
Large text: AAA

White text: 1.09:1

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

#FFCBCB sits half a turn (180°) from #CBFFFF 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.

#CBFFFF #FFCBCB

Analogous

#CBFFE5 and #CBE5FF sit 30° to either side of #CBFFFF. 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.

#CBFFE5 #CBFFFF #CBE5FF

Triadic

#CBFFFF, #FFCBFF and #FFFFCB are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#CBFFFF #FFCBFF #FFFFCB

Split complementary

Start at #CBFFFF and look across the wheel. #FFCBE5 and #FFE5CB sit 30° to either side of its exact opposite, giving you two different accent choices.

#CBFFFF #FFCBE5 #FFE5CB

Square

Starting with #CBFFFF, each quarter turn (90°) takes you to the next hue: #E5CBFF, #FFCBCB, then #E5FFCB. Across the square, #CBFFFF pairs with #FFCBCB, and #E5CBFF with #E5FFCB.

#CBFFFF #E5CBFF #FFCBCB #E5FFCB

Tetradic

#CBFFFF and #FFCBCB are opposites, as are #CBCBFF and #FFFFCB. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#CBFFFF #CBCBFF #FFCBCB #FFFFCB

Tints

Mixing #CBFFFF with white in 20% steps produces this scale. The first mixture, #D5FFFF, keeps 80% of the original. By #F5FFFF, the mixture is 80% white.

#CBFFFF #D5FFFF #E0FFFF #EAFFFF #F5FFFF #FFFFFF

Shades

Mixing #CBFFFF with black in 20% steps produces this scale. The first mixture, #A2CCCC, keeps 80% of the original. By #293333, the mixture is 80% black.

#CBFFFF #A2CCCC #7A9999 #516666 #293333 #000000

Tones

Mixing #CBFFFF with middle gray in 20% steps produces this scale. The first mixture, #BCE6E6, keeps 80% of the original. By #8F9999, the mixture is 80% middle gray.

#CBFFFF #BCE6E6 #ADCCCC #9EB3B3 #8F9999 #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

#CBFFFF

RGB

rgb(203 255 255)

HSL

hsl(180.000 100.000% 89.804%)

CSS example

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

Channel breakdown

RGB

#CBFFFF uses 203 red, 255 green and 255 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 79.6%

Green 100.0%

Blue 100.0%

CMYK

A simple CMYK estimate for #CBFFFF is 20.4% cyan, 0.0% magenta, 0.0% yellow and 0.0% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 20.4%

Magenta 0.0%

Yellow 0.0%

Black 0.0%

Nearby colors

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

Nearest shorthand: #CCFFFF Nearest web-safe: #CCFFFF

Gradient to complement

#CBFFFF #D4F6F6 #DCEEEE #E5E5E5 #EEDCDC #F6D4D4 #FFCBCB

Color vision previews

Compare how #CBFFFF 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.

#F8FAFF

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.

#EEF2FF

Tritanopia

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

#BBFFFF

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.

#E9FBFF

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.

#E4F7FF

Tritanomaly (50%)

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

#CAFFFF

Grayscale (luminance)

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

#F5F5F5

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.

#E1FAFA

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 0.59720 G 1.00000 B 1.00000

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 0.83715 G 0.99410 B 0.99697

Linear Display P3

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

R 0.66871 G 0.98663 B 0.99312

CIE xyY

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

x 0.282 y 0.329 Y 91.435

CMY

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

C % 20.392 M % 0.000 Y % 0.000

Binary RGB

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

11001011 11111111 11111111