#EFFDFD

sRGB: 239 / 253 / 253

Infinite horizons reshape eternity
Unbridled forces illuminate forgotten empires
Celestial symphonies shatter the chains of fate

#EFFDFD belongs to the cyan family. Its hex code tells a screen to mix 239 red, 253 green and 253 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 77.8% saturation makes it strong in color at this lightness. HSL lightness is 96.5% 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 (20.14:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 239, 253, 253
HSL: 180.00°, 77.78%, 96.47%
HSV / HSB: 180.00°, 5.53%, 99.22%
CMYK (approx.): 5.53%, 0.00%, 0.00%, 0.78%
CIE XYZ (D65, Y = 100 for white): 88.447, 95.693, 106.743
CIELAB (D65, 2° observer): 98.310, -4.565, -1.581
WCAG relative luminance: 0.95693
24-bit decimal: 15728125

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 #EFFDFD 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: 20.14:1

Normal text: AAA
Large text: AAA

White text: 1.04:1

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

#FDEFEF sits half a turn (180°) from #EFFDFD 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.

#EFFDFD #FDEFEF

Analogous

#EFFDF6 and #EFF6FD sit 30° to either side of #EFFDFD. 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.

#EFFDF6 #EFFDFD #EFF6FD

Triadic

#EFFDFD, #FDEFFD and #FDFDEF are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#EFFDFD #FDEFFD #FDFDEF

Split complementary

Start at #EFFDFD and look across the wheel. #FDEFF6 and #FDF6EF sit 30° to either side of its exact opposite, giving you two different accent choices.

#EFFDFD #FDEFF6 #FDF6EF

Square

Starting with #EFFDFD, each quarter turn (90°) takes you to the next hue: #F6EFFD, #FDEFEF, then #F6FDEF. Across the square, #EFFDFD pairs with #FDEFEF, and #F6EFFD with #F6FDEF.

#EFFDFD #F6EFFD #FDEFEF #F6FDEF

Tetradic

#EFFDFD and #FDEFEF are opposites, as are #EFEFFD and #FDFDEF. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#EFFDFD #EFEFFD #FDEFEF #FDFDEF

Tints

Mixing #EFFDFD with white in 20% steps produces this scale. The first mixture, #F2FDFD, keeps 80% of the original. By #FCFFFF, the mixture is 80% white.

#EFFDFD #F2FDFD #F5FEFE #F9FEFE #FCFFFF #FFFFFF

Shades

Mixing #EFFDFD with black in 20% steps produces this scale. The first mixture, #BFCACA, keeps 80% of the original. By #303333, the mixture is 80% black.

#EFFDFD #BFCACA #8F9898 #606565 #303333 #000000

Tones

Mixing #EFFDFD with middle gray in 20% steps produces this scale. The first mixture, #D9E4E4, keeps 80% of the original. By #969999, the mixture is 80% middle gray.

#EFFDFD #D9E4E4 #C3CBCB #ACB2B2 #969999 #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

#EFFDFD

RGB

rgb(239 253 253)

HSL

hsl(180.000 77.778% 96.471%)

CSS example

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

Channel breakdown

RGB

#EFFDFD uses 239 red, 253 green and 253 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 93.7%

Green 99.2%

Blue 99.2%

CMYK

A simple CMYK estimate for #EFFDFD is 5.5% cyan, 0.0% magenta, 0.0% yellow and 0.8% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 5.5%

Magenta 0.0%

Yellow 0.0%

Black 0.8%

Nearby colors

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

Nearest shorthand: #EEFFFF Nearest web-safe: #FFFFFF

Gradient to complement

#EFFDFD #F1FBFB #F4F8F8 #F6F6F6 #F8F4F4 #FBF1F1 #FDEFEF

Color vision previews

Compare how #EFFDFD 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.

#FBFBFD

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.

#F8F9FD

Tritanopia

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

#EBFEFD

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.

#F7FCFD

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.

#F5FBFD

Tritanomaly (50%)

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

#EFFDFD

Grayscale (luminance)

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

#FAFAFA

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.

#F5FCFC

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 0.86316 G 0.98225 B 0.98225

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 0.94731 G 0.99040 B 0.99125

Linear Display P3

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

R 0.88430 G 0.97830 B 0.98022

CIE xyY

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

x 0.304 y 0.329 Y 95.693

CMY

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

C % 6.275 M % 0.784 Y % 0.784

Binary RGB

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

11101111 11111101 11111101