#FB052D

sRGB · 251 / 5 / 45

#FB052D belongs to the red family. Its hex code tells a screen to mix 251 red, 5 green and 45 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 350.2° lands in the red region. Its 96.9% saturation makes it strong in color at this lightness. HSL lightness is 50.2% 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 (5.16:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 251, 5, 45
HSL: 350.24°, 96.85%, 50.20%
HSV / HSB: 350.24°, 98.01%, 98.43%
CMYK (approx.): 0.00%, 98.01%, 82.07%, 1.57%
CIE XYZ (D65, Y = 100 for white): 40.311, 20.811, 4.377
CIELAB (D65, 2° observer): 52.742, 79.362, 50.012
WCAG relative luminance: 0.20807
24-bit decimal: 16450861

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 #FB052D 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 · 5.16:1

Normal text: AA
Large text: AAA

White text · 4.07:1

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

#05FBD3 sits half a turn (180°) from #FB052D 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.

#FB052D #05FBD3

Analogous

#FB05A8 and #FB5805 sit 30° to either side of #FB052D. 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.

#FB05A8 #FB052D #FB5805

Triadic

#FB052D, #2DFB05 and #052DFB are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#FB052D #2DFB05 #052DFB

Split complementary

Start at #FB052D and look across the wheel. #05FB58 and #05A8FB sit 30° to either side of its exact opposite, giving you two different accent choices.

#FB052D #05FB58 #05A8FB

Square

Starting with #FB052D, each quarter turn (90°) takes you to the next hue: #A8FB05, #05FBD3, then #5805FB. Across the square, #FB052D pairs with #05FBD3, and #A8FB05 with #5805FB.

#FB052D #A8FB05 #05FBD3 #5805FB

Tetradic

#FB052D and #05FBD3 are opposites, as are #FBD305 and #052DFB. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#FB052D #FBD305 #05FBD3 #052DFB

Tints

Mixing #FB052D with white in 20% steps produces this scale. The first mixture, #FC3757, keeps 80% of the original. By #FECDD5, the mixture is 80% white.

#FB052D #FC3757 #FD6981 #FD9BAB #FECDD5 #FFFFFF

Shades

Mixing #FB052D with black in 20% steps produces this scale. The first mixture, #C90424, keeps 80% of the original. By #320109, the mixture is 80% black.

#FB052D #C90424 #97031B #640212 #320109 #000000

Tones

Mixing #FB052D with middle gray in 20% steps produces this scale. The first mixture, #E21E3E, keeps 80% of the original. By #99676F, the mixture is 80% middle gray.

#FB052D #E21E3E #CA364E #B14F5F #99676F #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

#FB052D

RGB

rgb(251 5 45)

HSL

hsl(350.244 96.850% 50.196%)

CSS example

.color-sample {
  background-color: #FB052D;
  color: #000000;
}

Channel breakdown

RGB

#FB052D uses 251 red, 5 green and 45 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 98.4%

Green 2.0%

Blue 17.6%

CMYK

A simple CMYK estimate for #FB052D is 0.0% cyan, 98.0% magenta, 82.1% yellow and 1.6% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 0.0%

Magenta 98.0%

Yellow 82.1%

Black 1.6%

Nearby colors

The nearest shorthand match is #FF0033. Its matching digit pairs let you write it as #F03 in CSS. For a modern design, keep #FB052D when you want an exact match. Use its web-safe neighbor, #FF0033, when matching a legacy palette of 216 colors.

Nearest shorthand · #FF0033 Nearest web-safe · #FF0033

Gradient to complement

#FB052D #D22E49 #A95764 #808080 #57A99C #2ED2B7 #05FBD3

Color vision previews

Compare how #FB052D 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.

#6A5F2B

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.

#A08E20

Tritanopia

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

#FF001F

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.

#B15626

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.

#C07522

Tritanomaly (50%)

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

#FD002D

Grayscale (luminance)

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

#7E7E7E

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.

#C95B60

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 0.96469 G 0.00152 B 0.02624

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 0.90316 G 0.20123 B 0.22230

Linear Display P3

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

R 0.79369 G 0.03349 B 0.04048

CIE xyY

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

x 0.615 y 0.318 Y 20.811

CMY

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

C % 1.569 M % 98.039 Y % 82.353

Binary RGB

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

11111011 00000101 00101101