#FE4021

sRGB · 254 / 64 / 33

#FE4021 belongs to the red family. Its hex code tells a screen to mix 254 red, 64 green and 33 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 8.4° lands in the red region. Its 99.1% saturation makes it strong in color at this lightness. HSL lightness is 56.3% 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 (5.97:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 254, 64, 33
HSL: 8.42°, 99.10%, 56.27%
HSV / HSB: 8.42°, 87.01%, 99.61%
CMYK (approx.): 0.00%, 74.80%, 87.01%, 0.39%
CIE XYZ (D65, Y = 100 for white): 42.980, 24.851, 3.973
CIELAB (D65, 2° observer): 56.930, 69.425, 59.412
WCAG relative luminance: 0.24847
24-bit decimal: 16662561

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 #FE4021 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 · 5.97:1

Normal text: AA
Large text: AAA

White text · 3.52:1

Normal text: Fail
Large text: AA

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. 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

#21DFFE sits half a turn (180°) from #FE4021 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.

#FE4021 #21DFFE

Analogous

#FE2171 and #FEAE21 sit 30° to either side of #FE4021. 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.

#FE2171 #FE4021 #FEAE21

Triadic

#FE4021, #21FE40 and #4021FE are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#FE4021 #21FE40 #4021FE

Split complementary

Start at #FE4021 and look across the wheel. #21FEAF and #2170FE sit 30° to either side of its exact opposite, giving you two different accent choices.

#FE4021 #21FEAF #2170FE

Square

Starting with #FE4021, each quarter turn (90°) takes you to the next hue: #71FE21, #21DFFE, then #AF21FE. Across the square, #FE4021 pairs with #21DFFE, and #71FE21 with #AF21FE.

#FE4021 #71FE21 #21DFFE #AF21FE

Tetradic

#FE4021 and #21DFFE are opposites, as are #DFFE21 and #4021FE. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#FE4021 #DFFE21 #21DFFE #4021FE

Tints

Mixing #FE4021 with white in 20% steps produces this scale. The first mixture, #FE664D, keeps 80% of the original. By #FFD9D3, the mixture is 80% white.

#FE4021 #FE664D #FE8C7A #FFB3A6 #FFD9D3 #FFFFFF

Shades

Mixing #FE4021 with black in 20% steps produces this scale. The first mixture, #CB331A, keeps 80% of the original. By #330D07, the mixture is 80% black.

#FE4021 #CB331A #982614 #661A0D #330D07 #000000

Tones

Mixing #FE4021 with middle gray in 20% steps produces this scale. The first mixture, #E54D34, keeps 80% of the original. By #99736D, the mixture is 80% middle gray.

#FE4021 #E54D34 #CC5A47 #B2665A #99736D #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

#FE4021

RGB

rgb(254 64 33)

HSL

hsl(8.416 99.103% 56.275%)

CSS example

.color-sample {
  background-color: #FE4021;
  color: #000000;
}

Channel breakdown

RGB

#FE4021 uses 254 red, 64 green and 33 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 99.6%

Green 25.1%

Blue 12.9%

CMYK

A simple CMYK estimate for #FE4021 is 0.0% cyan, 74.8% magenta, 87.0% yellow and 0.4% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 0.0%

Magenta 74.8%

Yellow 87.0%

Black 0.4%

Nearby colors

The nearest shorthand match is #FF4422. Its matching digit pairs let you write it as #F42 in CSS. For a modern design, keep #FE4021 when you want an exact match. Use its web-safe neighbor, #FF3333, when matching a legacy palette of 216 colors.

Nearest shorthand · #FF4422 Nearest web-safe · #FF3333

Gradient to complement

#FE4021 #D95B46 #B4756B #909090 #6BAAB4 #46C5D9 #21DFFE

Color vision previews

Compare how #FE4021 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.

#7C6E19

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.

#AB9810

Tritanopia

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

#FF003C

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.

#B96715

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.

#C78112

Tritanomaly (50%)

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

#FF3B31

Grayscale (luminance)

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

#898989

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.

#CE6C66

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 0.05127 B 0.01521

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 0.91837 G 0.31799 B 0.20439

Linear Display P3

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

R 0.82425 G 0.08247 B 0.03449

CIE xyY

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

x 0.599 y 0.346 Y 24.851

CMY

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

C % 0.392 M % 74.902 Y % 87.059

Binary RGB

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

11111110 01000000 00100001