#CBDFEF

sRGB: 203 / 223 / 239

Celestial flames rise against oblivion
Electric visions transform the fabric of existence
Infinite wonders echo beyond eternity

#CBDFEF belongs to the azure family. Its hex code tells a screen to mix 203 red, 223 green and 239 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 206.7° lands in the azure region. Its 52.9% saturation makes it partway between gray and the most vivid version of this hue at this lightness. HSL lightness is 86.7% 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 (15.34:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 203, 223, 239
HSL: 206.67°, 52.94%, 86.67%
HSV / HSB: 206.67°, 15.06%, 93.73%
CMYK (approx.): 15.06%, 6.69%, 0.00%, 6.27%
CIE XYZ (D65, Y = 100 for white): 66.593, 71.703, 91.996
CIELAB (D65, 2° observer): 87.826, -3.436, -10.052
WCAG relative luminance: 0.71704
24-bit decimal: 13361135

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 #CBDFEF 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: 15.34:1

Normal text: AAA
Large text: AAA

White text: 1.37:1

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

#EFDBCB sits half a turn (180°) from #CBDFEF 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.

#CBDFEF #EFDBCB

Analogous

#CBEFED and #CBCDEF sit 30° to either side of #CBDFEF. 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.

#CBEFED #CBDFEF #CBCDEF

Triadic

#CBDFEF, #EFCBDF and #DFEFCB are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#CBDFEF #EFCBDF #DFEFCB

Split complementary

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

#CBDFEF #EFCBCD #EFEDCB

Square

Starting with #CBDFEF, each quarter turn (90°) takes you to the next hue: #EDCBEF, #EFDBCB, then #CDEFCB. Across the square, #CBDFEF pairs with #EFDBCB, and #EDCBEF with #CDEFCB.

#CBDFEF #EDCBEF #EFDBCB #CDEFCB

Tetradic

#CBDFEF and #EFDBCB are opposites, as are #DBCBEF and #DFEFCB. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#CBDFEF #DBCBEF #EFDBCB #DFEFCB

Tints

Mixing #CBDFEF with white in 20% steps produces this scale. The first mixture, #D5E5F2, keeps 80% of the original. By #F5F9FC, the mixture is 80% white.

#CBDFEF #D5E5F2 #E0ECF5 #EAF2F9 #F5F9FC #FFFFFF

Shades

Mixing #CBDFEF with black in 20% steps produces this scale. The first mixture, #A2B2BF, keeps 80% of the original. By #292D30, the mixture is 80% black.

#CBDFEF #A2B2BF #7A868F #515960 #292D30 #000000

Tones

Mixing #CBDFEF with middle gray in 20% steps produces this scale. The first mixture, #BCCCD9, keeps 80% of the original. By #8F9396, the mixture is 80% middle gray.

#CBDFEF #BCCCD9 #ADB9C3 #9EA6AC #8F9396 #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

#CBDFEF

RGB

rgb(203 223 239)

HSL

hsl(206.667 52.941% 86.667%)

CSS example

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

Channel breakdown

RGB

#CBDFEF uses 203 red, 223 green and 239 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 79.6%

Green 87.5%

Blue 93.7%

CMYK

A simple CMYK estimate for #CBDFEF is 15.1% cyan, 6.7% magenta, 0.0% yellow and 6.3% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 15.1%

Magenta 6.7%

Yellow 0.0%

Black 6.3%

Nearby colors

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

Nearest shorthand: #CCDDEE Nearest web-safe: #CCCCFF

Gradient to complement

#CBDFEF #D1DEE9 #D7DEE3 #DDDDDD #E3DCD7 #E9DCD1 #EFDBCB

Color vision previews

Compare how #CBDFEF 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.

#D9DFF0

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.

#D4DAEF

Tritanopia

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

#C2E3E4

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.

#D4DEEF

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.

#D2DCEF

Tritanomaly (50%)

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

#CAE0EB

Grayscale (luminance)

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

#DCDCDC

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.

#D4DEE6

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 0.73791 B 0.86316

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 0.81074 G 0.87205 B 0.93071

Linear Display P3

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

R 0.62218 G 0.73324 B 0.84955

CIE xyY

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

x 0.289 y 0.311 Y 71.703

CMY

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

C % 20.392 M % 12.549 Y % 6.275

Binary RGB

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

11001011 11011111 11101111