#FEE663

sRGB: 254 / 230 / 99

Cosmic tempests fracture ancient heavens
Immortal legends blossom beneath falling stars
Wandering dreams linger beyond yesterday

#FEE663 belongs to the yellow family. Its hex code tells a screen to mix 254 red, 230 green and 99 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 50.7° lands in the yellow region. Its 98.7% saturation makes it strong in color at this lightness. HSL lightness is 69.2% 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 (16.71:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 254, 230, 99
HSL: 50.71°, 98.73%, 69.22%
HSV / HSB: 50.71°, 61.02%, 99.61%
CMYK (approx.): 0.00%, 9.45%, 61.02%, 0.39%
CIE XYZ (D65, Y = 100 for white): 71.420, 78.567, 23.208
CIELAB (D65, 2° observer): 91.038, -6.802, 65.088
WCAG relative luminance: 0.78565
24-bit decimal: 16705123

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 #FEE663 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: 16.71:1

Normal text: AAA
Large text: AAA

White text: 1.26:1

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

#637BFE sits half a turn (180°) from #FEE663 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.

#FEE663 #637BFE

Analogous

#FE9863 and #C9FE63 sit 30° to either side of #FEE663. 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.

#FE9863 #FEE663 #C9FE63

Triadic

#FEE663, #63FEE6 and #E663FE are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#FEE663 #63FEE6 #E663FE

Split complementary

Start at #FEE663 and look across the wheel. #63C8FE and #9963FE sit 30° to either side of its exact opposite, giving you two different accent choices.

#FEE663 #63C8FE #9963FE

Square

Starting with #FEE663, each quarter turn (90°) takes you to the next hue: #63FE98, #637BFE, then #FE63C8. Across the square, #FEE663 pairs with #637BFE, and #63FE98 with #FE63C8.

#FEE663 #63FE98 #637BFE #FE63C8

Tetradic

#FEE663 and #637BFE are opposites, as are #7BFE63 and #E663FE. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#FEE663 #7BFE63 #637BFE #E663FE

Tints

Mixing #FEE663 with white in 20% steps produces this scale. The first mixture, #FEEB82, keeps 80% of the original. By #FFFAE0, the mixture is 80% white.

#FEE663 #FEEB82 #FEF0A1 #FFF5C1 #FFFAE0 #FFFFFF

Shades

Mixing #FEE663 with black in 20% steps produces this scale. The first mixture, #CBB84F, keeps 80% of the original. By #332E14, the mixture is 80% black.

#FEE663 #CBB84F #988A3B #665C28 #332E14 #000000

Tones

Mixing #FEE663 with middle gray in 20% steps produces this scale. The first mixture, #E5D269, keeps 80% of the original. By #99947A, the mixture is 80% middle gray.

#FEE663 #E5D269 #CCBD6F #B2A974 #99947A #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

#FEE663

RGB

rgb(254 230 99)

HSL

hsl(50.710 98.726% 69.216%)

CSS example

.color-sample {
  background-color: #FEE663;
  color: #000000;
}

Channel breakdown

RGB

#FEE663 uses 254 red, 230 green and 99 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 99.6%

Green 90.2%

Blue 38.8%

CMYK

A simple CMYK estimate for #FEE663 is 0.0% cyan, 9.4% magenta, 61.0% yellow and 0.4% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 0.0%

Magenta 9.4%

Yellow 61.0%

Black 0.4%

Nearby colors

The nearest shorthand match is #FFEE66. Its matching digit pairs let you write it as #FE6 in CSS. For a modern design, keep #FEE663 when you want an exact match. Use its web-safe neighbor, #FFFF66, when matching a legacy palette of 216 colors.

Nearest shorthand: #FFEE66 Nearest web-safe: #FFFF66

Gradient to complement

#FEE663 #E4D47D #CAC297 #B1B1B1 #979FCA #7D8DE4 #637BFE

Color vision previews

Compare how #FEE663 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.

#FAE054

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.

#FFE96A

Tritanopia

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

#FFD7CA

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.

#FCE35C

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.

#FFE866

Tritanomaly (50%)

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

#FFE294

Grayscale (luminance)

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

#E5E5E5

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.

#F2E6B4

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 0.99110 G 0.79130 B 0.12477

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 0.98024 G 0.90529 B 0.47059

Linear Display P3

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

R 0.95563 G 0.79793 B 0.18783

CIE xyY

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

x 0.412 y 0.454 Y 78.567

CMY

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

C % 0.392 M % 9.804 Y % 61.176

Binary RGB

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

11111110 11100110 01100011