What color is #FF5151?

#FF5151 is a light, vivid red, closest to the named color Red Mana. It belongs to the red family of colors.

What is the RGB value of #FF5151?

The RGB value is 255, 81, 81: 255 red, 81 green and 81 blue on a 0 to 255 scale.

What is the complementary color of #FF5151?

The complementary color is #51FFFF, found by rotating the hue 180° on the color wheel.

Is black or white text better on #FF5151?

Black text. Black text has a contrast ratio of 6.55:1 and white text 3.21:1. WCAG asks for at least 4.5:1 for normal text.

#FF5151 color

#FF5151 rgb(255, 81, 81)

Shades of red

The hex color #FF5151 is a light, vivid red.

In the RGB color model it is made of 100% red, 31.8% green and 31.8% blue (255, 81, 81).

Its hue angle is 0°, with 100% saturation and 66% lightness. For print, the CMYK equivalent is 0% cyan, 68% magenta, 68% yellow and 0% black.

The closest named color is Red Mana (#F95554), a difference of 1 ΔE, which is barely visible.

Black text is the more readable choice on this background (contrast 6.55:1).

#FF5151 color codes

HEX	`#FF5151`
RGB	`rgb(255, 81, 81)`
RGB percent	`rgb(100%, 31.8%, 31.8%)`
HSL	`hsl(0, 100%, 66%)`
HSV / HSB	`hsv(0, 68%, 100%)`
CMYK	`cmyk(0%, 68%, 68%, 0%)`
CIE LAB	`lab(59.66, 65.52, 38.06)`
CIE LCH	`lch(59.66, 75.77, 30.15)`
CIE XYZ	`xyz(45.673, 27.746, 10.733)`
Decimal	`16732497`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #FF5151, based on their position on the color wheel.

Complementary

The color opposite on the color wheel (180°). Strongest contrast.

Analogous

Neighbors 30° either side. Calm, natural combinations.

Split complementary

The two colors next to the complement (150° and 210°).

Triadic

Three colors evenly spaced, 120° apart.

Tetradic (square)

Four colors 90° apart.

Shades, tints and tones

Shades (darker, mixed with black)

Tints (lighter, mixed with white)

Tones (mixed with gray)

Contrast and accessibility

Text on #FF5151	Ratio	AA	AAA	AA large
Sample text	6.55:1	Pass	Fail	Pass
Sample text	3.21:1	Fail	Fail	Pass

#FF5151 as text on	Ratio	AA	AAA	AA large
Sample text	3.21:1	Fail	Fail	Pass
Sample text	6.55:1	Pass	Fail	Pass

WCAG 2 asks for 4.5:1 for normal text (AA), 7:1 for AAA, and 3:1 for large text. Check other pairs.

Color blindness simulation

How #FF5151 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #ff5151; }
.text { color: #ff5151; }
.border { border: 2px solid #ff5151; }
.transparent { background-color: rgb(255 81 81 / 50%); }
.gradient { background: linear-gradient(to right, #ff5151, #ffa851); }

Background

Text color

Border

Similar colors

Closest common color name: Tomato.

Questions

What color is #FF5151?: #FF5151 is a light, vivid red, closest to the named color Red Mana. It belongs to the red family of colors.
What is the RGB value of #FF5151?: The RGB value is 255, 81, 81: 255 red, 81 green and 81 blue on a 0 to 255 scale.
What is the complementary color of #FF5151?: The complementary color is #51FFFF, found by rotating the hue 180° on the color wheel.
Is black or white text better on #FF5151?: Black text. Black text has a contrast ratio of 6.55:1 and white text 3.21:1. WCAG asks for at least 4.5:1 for normal text.