#CEFBFF

sRGB: 206 / 251 / 255

Celestial flames fracture ancient heavens
Unbridled forces shimmer across boundless heavens
Celestial symphonies echo beyond eternity

#CEFBFF belongs to the cyan family. Its hex code tells a screen to mix 206 red, 251 green and 255 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 184.9° lands in the cyan region. Its 100.0% saturation makes it strong in color at this lightness. HSL lightness is 90.4% 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 (18.87:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 206, 251, 255
HSL: 184.90°, 100.00%, 90.39%
HSV / HSB: 184.90°, 19.22%, 100.00%
CMYK (approx.): 19.22%, 1.57%, 0.00%, 0.00%
CIE XYZ (D65, Y = 100 for white): 77.997, 89.335, 107.745
CIELAB (D65, 2° observer): 95.720, -13.438, -6.666
WCAG relative luminance: 0.89336
24-bit decimal: 13564927

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 #CEFBFF 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: 18.87:1

Normal text: AAA
Large text: AAA

White text: 1.11:1

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

#FFD2CE sits half a turn (180°) from #CEFBFF 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.

#CEFBFF #FFD2CE

Analogous

#CEFFEB and #CEE3FF sit 30° to either side of #CEFBFF. 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.

#CEFFEB #CEFBFF #CEE3FF

Triadic

#CEFBFF, #FFCEFB and #FBFFCE are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#CEFBFF #FFCEFB #FBFFCE

Split complementary

Start at #CEFBFF and look across the wheel. #FFCEE3 and #FFEBCE sit 30° to either side of its exact opposite, giving you two different accent choices.

#CEFBFF #FFCEE3 #FFEBCE

Square

Starting with #CEFBFF, each quarter turn (90°) takes you to the next hue: #EBCEFF, #FFD2CE, then #E3FFCE. Across the square, #CEFBFF pairs with #FFD2CE, and #EBCEFF with #E3FFCE.

#CEFBFF #EBCEFF #FFD2CE #E3FFCE

Tetradic

#CEFBFF and #FFD2CE are opposites, as are #D2CEFF and #FBFFCE. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#CEFBFF #D2CEFF #FFD2CE #FBFFCE

Tints

Mixing #CEFBFF with white in 20% steps produces this scale. The first mixture, #D8FCFF, keeps 80% of the original. By #F5FEFF, the mixture is 80% white.

#CEFBFF #D8FCFF #E2FDFF #EBFDFF #F5FEFF #FFFFFF

Shades

Mixing #CEFBFF with black in 20% steps produces this scale. The first mixture, #A5C9CC, keeps 80% of the original. By #293233, the mixture is 80% black.

#CEFBFF #A5C9CC #7C9799 #526466 #293233 #000000

Tones

Mixing #CEFBFF with middle gray in 20% steps produces this scale. The first mixture, #BEE2E6, keeps 80% of the original. By #909999, the mixture is 80% middle gray.

#CEFBFF #BEE2E6 #AFCACC #9FB1B3 #909999 #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

#CEFBFF

RGB

rgb(206 251 255)

HSL

hsl(184.898 100.000% 90.392%)

CSS example

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

Channel breakdown

RGB

#CEFBFF uses 206 red, 251 green and 255 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 80.8%

Green 98.4%

Blue 100.0%

CMYK

A simple CMYK estimate for #CEFBFF is 19.2% cyan, 1.6% magenta, 0.0% yellow and 0.0% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 19.2%

Magenta 1.6%

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 #CEFBFF 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

#CEFBFF #D6F4F7 #DEEDEF #E7E7E7 #EFE0DE #F7D9D6 #FFD2CE

Color vision previews

Compare how #CEFBFF 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.

#F4F7FF

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.

#EBF0FF

Tritanopia

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

#BFFFFC

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.

#E7F8FF

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.

#E3F4FF

Tritanomaly (50%)

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

#CDFBFE

Grayscale (luminance)

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

#F3F3F3

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.

#E1F7F9

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 0.96469 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 0.84278 G 0.97912 B 0.99599

Linear Display P3

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

R 0.67890 G 0.95315 B 0.99090

CIE xyY

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

x 0.284 y 0.325 Y 89.335

CMY

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

C % 19.216 M % 1.569 Y % 0.000

Binary RGB

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

11001110 11111011 11111111