#EFFFDE

sRGB: 239 / 255 / 222

Infinite horizons reshape eternity
Unbridled forces transform the fabric of existence
Fierce revelations transcend the limits of dreams

#EFFFDE belongs to the yellow-green family. Its hex code tells a screen to mix 239 red, 255 green and 222 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 89.1° lands in the yellow-green region. Its 100.0% saturation makes it strong in color at this lightness. HSL lightness is 93.5% 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 (20.03:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 239, 255, 222
HSL: 89.09°, 100.00%, 93.53%
HSV / HSB: 89.09°, 12.94%, 100.00%
CMYK (approx.): 6.27%, 0.00%, 12.94%, 0.00%
CIE XYZ (D65, Y = 100 for white): 84.538, 95.144, 83.021
CIELAB (D65, 2° observer): 98.091, -10.923, 14.008
WCAG relative luminance: 0.95145
24-bit decimal: 15728606

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 #EFFFDE 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: 20.03:1

Normal text: AAA
Large text: AAA

White text: 1.05:1

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

#EEDEFF sits half a turn (180°) from #EFFFDE 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.

#EFFFDE #EEDEFF

Analogous

#FFFFDE and #DFFFDE sit 30° to either side of #EFFFDE. 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.

#FFFFDE #EFFFDE #DFFFDE

Triadic

#EFFFDE, #DEEFFF and #FFDEEF are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#EFFFDE #DEEFFF #FFDEEF

Split complementary

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

#EFFFDE #DEDFFF #FFDEFF

Square

Starting with #EFFFDE, each quarter turn (90°) takes you to the next hue: #DEFFFF, #EEDEFF, then #FFDEDF. Across the square, #EFFFDE pairs with #EEDEFF, and #DEFFFF with #FFDEDF.

#EFFFDE #DEFFFF #EEDEFF #FFDEDF

Tetradic

#EFFFDE and #EEDEFF are opposites, as are #DEFFEE and #FFDEEF. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#EFFFDE #DEFFEE #EEDEFF #FFDEEF

Tints

Mixing #EFFFDE with white in 20% steps produces this scale. The first mixture, #F2FFE5, keeps 80% of the original. By #FCFFF8, the mixture is 80% white.

#EFFFDE #F2FFE5 #F5FFEB #F9FFF2 #FCFFF8 #FFFFFF

Shades

Mixing #EFFFDE with black in 20% steps produces this scale. The first mixture, #BFCCB2, keeps 80% of the original. By #30332C, the mixture is 80% black.

#EFFFDE #BFCCB2 #8F9985 #606659 #30332C #000000

Tones

Mixing #EFFFDE with middle gray in 20% steps produces this scale. The first mixture, #D9E6CB, keeps 80% of the original. By #969993, the mixture is 80% middle gray.

#EFFFDE #D9E6CB #C3CCB8 #ACB3A6 #969993 #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

#EFFFDE

RGB

rgb(239 255 222)

HSL

hsl(89.091 100.000% 93.529%)

CSS example

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

Channel breakdown

RGB

#EFFFDE uses 239 red, 255 green and 222 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 93.7%

Green 100.0%

Blue 87.1%

CMYK

A simple CMYK estimate for #EFFFDE is 6.3% cyan, 0.0% magenta, 12.9% yellow and 0.0% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 6.3%

Magenta 0.0%

Yellow 12.9%

Black 0.0%

Nearby colors

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

Nearest shorthand: #EEFFDD Nearest web-safe: #FFFFCC

Gradient to complement

#EFFFDE #EFFAE4 #EFF4E9 #EFEFEF #EEE9F4 #EEE4FA #EEDEFF

Color vision previews

Compare how #EFFFDE 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.

#FFFADC

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.

#FFF9DF

Tritanopia

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

#F1FCF6

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.

#FCFCDD

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.

#FBFBDF

Tritanomaly (50%)

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

#F0FEE7

Grayscale (luminance)

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

#F9F9F9

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.

#F4FCEC

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 1.00000 B 0.73046

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 0.94880 G 0.99800 B 0.88199

Linear Display P3

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

R 0.88745 G 0.99546 B 0.75224

CIE xyY

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

x 0.322 y 0.362 Y 95.144

CMY

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

C % 6.275 M % 0.000 Y % 12.941

Binary RGB

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

11101111 11111111 11011110