#FFED40

sRGB: 255 / 237 / 64

Cosmic tempests reshape eternity
Immortal legends illuminate forgotten empires
Quiet wishes vanish without farewell

#FFED40 belongs to the yellow family. Its hex code tells a screen to mix 255 red, 237 green and 64 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 54.3° lands in the yellow region. Its 100.0% saturation makes it strong in color at this lightness. HSL lightness is 62.5% 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 (17.44:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 255, 237, 64
HSL: 54.35°, 100.00%, 62.55%
HSV / HSB: 54.35°, 74.90%, 100.00%
CMYK (approx.): 0.00%, 7.06%, 74.90%, 0.00%
CIE XYZ (D65, Y = 100 for white): 72.447, 82.200, 16.901
CIELAB (D65, 2° observer): 92.663, -11.637, 79.873
WCAG relative luminance: 0.82199
24-bit decimal: 16772416

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 #FFED40 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: 17.44:1

Normal text: AAA
Large text: AAA

White text: 1.20:1

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

#4052FF sits half a turn (180°) from #FFED40 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.

#FFED40 #4052FF

Analogous

#FF8E40 and #B1FF40 sit 30° to either side of #FFED40. 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.

#FF8E40 #FFED40 #B1FF40

Triadic

#FFED40, #40FFED and #ED40FF are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#FFED40 #40FFED #ED40FF

Split complementary

Start at #FFED40 and look across the wheel. #40B1FF and #8E40FF sit 30° to either side of its exact opposite, giving you two different accent choices.

#FFED40 #40B1FF #8E40FF

Square

Starting with #FFED40, each quarter turn (90°) takes you to the next hue: #40FF8E, #4052FF, then #FF40B1. Across the square, #FFED40 pairs with #4052FF, and #40FF8E with #FF40B1.

#FFED40 #40FF8E #4052FF #FF40B1

Tetradic

#FFED40 and #4052FF are opposites, as are #52FF40 and #ED40FF. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#FFED40 #52FF40 #4052FF #ED40FF

Tints

Mixing #FFED40 with white in 20% steps produces this scale. The first mixture, #FFF166, keeps 80% of the original. By #FFFBD9, the mixture is 80% white.

#FFED40 #FFF166 #FFF48C #FFF8B3 #FFFBD9 #FFFFFF

Shades

Mixing #FFED40 with black in 20% steps produces this scale. The first mixture, #CCBE33, keeps 80% of the original. By #332F0D, the mixture is 80% black.

#FFED40 #CCBE33 #998E26 #665F1A #332F0D #000000

Tones

Mixing #FFED40 with middle gray in 20% steps produces this scale. The first mixture, #E6D74D, keeps 80% of the original. By #999673, the mixture is 80% middle gray.

#FFED40 #E6D74D #CCC15A #B3AC66 #999673 #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

#FFED40

RGB

rgb(255 237 64)

HSL

hsl(54.346 100.000% 62.549%)

CSS example

.color-sample {
  background-color: #FFED40;
  color: #000000;
}

Channel breakdown

RGB

#FFED40 uses 255 red, 237 green and 64 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 100.0%

Green 92.9%

Blue 25.1%

CMYK

A simple CMYK estimate for #FFED40 is 0.0% cyan, 7.1% magenta, 74.9% yellow and 0.0% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 0.0%

Magenta 7.1%

Yellow 74.9%

Black 0.0%

Nearby colors

The nearest shorthand match is #FFEE44. Its matching digit pairs let you write it as #FE4 in CSS. For a modern design, keep #FFED40 when you want an exact match. Use its web-safe neighbor, #FFFF33, when matching a legacy palette of 216 colors.

Nearest shorthand: #FFEE44 Nearest web-safe: #FFFF33

Gradient to complement

#FFED40 #DFD360 #BFB980 #A0A0A0 #8086BF #606CDF #4052FF

Color vision previews

Compare how #FFED40 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.

#FFE518

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.

#FFEE4D

Tritanopia

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

#FFDCCC

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.

#FFE931

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.

#FFED47

Tritanomaly (50%)

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

#FFE88A

Grayscale (luminance)

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

#EAEAEA

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.

#F5EBB0

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 1.00000 G 0.84687 B 0.05127

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 0.98795 G 0.93187 B 0.38869

Linear Display P3

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

R 0.97281 G 0.85196 B 0.12508

CIE xyY

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

x 0.422 y 0.479 Y 82.200

CMY

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

C % 0.000 M % 7.059 Y % 74.902

Binary RGB

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

11111111 11101101 01000000