#CEFBDF

sRGB: 206 / 251 / 223

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

#CEFBDF belongs to the green-cyan family. Its hex code tells a screen to mix 206 red, 251 green and 223 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 142.7° lands in the green-cyan region. Its 84.9% saturation makes it strong in color at this lightness. HSL lightness is 89.6% 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 (18.49:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 206, 251, 223
HSL: 142.67°, 84.91%, 89.61%
HSV / HSB: 142.67°, 17.93%, 98.43%
CMYK (approx.): 17.93%, 0.00%, 11.16%, 1.57%
CIE XYZ (D65, Y = 100 for white): 73.267, 87.443, 82.832
CIELAB (D65, 2° observer): 94.926, -19.676, 8.688
WCAG relative luminance: 0.87444
24-bit decimal: 13564895

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 #CEFBDF 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: 18.49:1

Normal text: AAA
Large text: AAA

White text: 1.14:1

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

#FBCEEA sits half a turn (180°) from #CEFBDF 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.

#CEFBDF #FBCEEA

Analogous

#D4FBCE and #CEFBF5 sit 30° to either side of #CEFBDF. 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.

#D4FBCE #CEFBDF #CEFBF5

Triadic

#CEFBDF, #DFCEFB and #FBDFCE are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#CEFBDF #DFCEFB #FBDFCE

Split complementary

Start at #CEFBDF and look across the wheel. #F5CEFB and #FBCED4 sit 30° to either side of its exact opposite, giving you two different accent choices.

#CEFBDF #F5CEFB #FBCED4

Square

Starting with #CEFBDF, each quarter turn (90°) takes you to the next hue: #CED4FB, #FBCEEA, then #FBF5CE. Across the square, #CEFBDF pairs with #FBCEEA, and #CED4FB with #FBF5CE.

#CEFBDF #CED4FB #FBCEEA #FBF5CE

Tetradic

#CEFBDF and #FBCEEA are opposites, as are #CEEAFB and #FBDFCE. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#CEFBDF #CEEAFB #FBCEEA #FBDFCE

Tints

Mixing #CEFBDF with white in 20% steps produces this scale. The first mixture, #D8FCE5, keeps 80% of the original. By #F5FEF9, the mixture is 80% white.

#CEFBDF #D8FCE5 #E2FDEC #EBFDF2 #F5FEF9 #FFFFFF

Shades

Mixing #CEFBDF with black in 20% steps produces this scale. The first mixture, #A5C9B2, keeps 80% of the original. By #29322D, the mixture is 80% black.

#CEFBDF #A5C9B2 #7C9786 #526459 #29322D #000000

Tones

Mixing #CEFBDF with middle gray in 20% steps produces this scale. The first mixture, #BEE2CC, keeps 80% of the original. By #909993, the mixture is 80% middle gray.

#CEFBDF #BEE2CC #AFCAB9 #9FB1A6 #909993 #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

#CEFBDF

RGB

rgb(206 251 223)

HSL

hsl(142.667 84.906% 89.608%)

CSS example

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

Channel breakdown

RGB

#CEFBDF uses 206 red, 251 green and 223 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 80.8%

Green 98.4%

Blue 87.5%

CMYK

A simple CMYK estimate for #CEFBDF is 17.9% cyan, 0.0% magenta, 11.2% yellow and 1.6% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 17.9%

Magenta 0.0%

Yellow 11.2%

Black 1.6%

Nearby colors

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

Nearest shorthand: #CCFFDD Nearest web-safe: #CCFFCC

Gradient to complement

#CEFBDF #D6F4E1 #DDECE3 #E5E5E5 #ECDDE6 #F4D6E8 #FBCEEA

Color vision previews

Compare how #CEFBDF 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.

#FAF4DE

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.

#F2EEE0

Tritanopia

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

#C7FAF3

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.

#ECF6DF

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.

#E8F3E0

Tritanomaly (50%)

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

#CFFAE6

Grayscale (luminance)

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

#F0F0F0

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.

#E0F6E8

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 0.73791

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 0.88200

Linear Display P3

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

R 0.67890 G 0.95315 B 0.75227

CIE xyY

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

x 0.301 y 0.359 Y 87.443

CMY

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

C % 19.216 M % 1.569 Y % 12.549

Binary RGB

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

11001110 11111011 11011111