#EF5751#EF5751

#EF5751 is a light, vivid red. Relative luminance 0.258; OKLCH L 65.9% C 0.188 H 25.9°. Best body text is #000000 at 6.15:1 contrast (WCAG AA passes).

Color values

HEX	#EF5751
RGB	rgb(239, 87, 81)
HSL	hsl(2, 83%, 63%)
HSV	hsv(2, 66%, 94%)
CMYK	cmyk(0%, 63.6%, 66.1%, 6.3%)
CIE-LAB	lab(57.81, 58.06, 35.19)
CIE-LCH	lch(57.81, 67.90, 31.22°)
OKLab	oklab(65.86% 0.1695 0.0824)
OKLCH	oklch(65.86% 0.188 25.9)
XYZ	xyz(40.4941, 25.7668, 10.6242)
Luminance	0.2576 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EF5751 #51E9EF

analogous

#EF519A #EF5751 #EFA651

triadic

#EF5751 #51EF57 #5751EF

tetradic

#EF5751 #9AEF51 #51E9EF #A651EF

square

#EF5751 #9AEF51 #51E9EF #A651EF

split-complementary

#EF5751 #51EFA6 #519AEF

monochromatic

#B51711 #EA2119 #EF5751 #F48D89 #F9C3C1

Accessibility & contrast

On white

3.41

#EF5751 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.15

#EF5751 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #EF5751

6.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EF5751	#FFFFFF	#000000	##000000
##EF5751	1.00	3.41	6.15	6.15
#FFFFFF	3.41	1.00	21.00	21.00
#000000	6.15	21.00	1.00	1.00
##000000	6.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#80764F

Deuteranopia (green-blind)

#A6974D

Tritanopia (blue-blind)

#FF3357

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #ef5751;
/* rgb */ color: rgb(239, 87, 81);
/* oklch */ color: oklch(65.9% 0.188 25.9);

Tailwind

colors: {
  custom: {
    50: '#fc8d82',
    500: '#ef5751',
    950: '#000000',
  },
}

SCSS

$custom: #ef5751;
$custom-light: #fc8d82;
$custom-dark: #000000;

JSON

{
  "hex": "#ef5751",
  "rgb": {
    "r": 239,
    "g": 87,
    "b": 81
  },
  "hsl": {
    "h": 2.278,
    "s": 83.158,
    "l": 62.745
  },
  "oklch": {
    "l": 0.65863,
    "c": 0.18849,
    "h": 25.9
  },
  "luminance": 0.25761
}

Semantic roles & 50–950 ramp

primary

#EF5751

secondary

#B1E8EA

accent

#D7E006

background

#FFF9F7

surface

#FFF1EE

border

#D7CBC9

text

#190D0A

muted

#877E7C

Preview Lab

Preview with #EF5751

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →