#EF5451#EF5451

#EF5451 is a light, vivid red. Relative luminance 0.253; OKLCH L 65.5% C 0.191 H 25.1°. Best body text is #000000 at 6.06:1 contrast (WCAG AA passes).

Color values

HEX	#EF5451
RGB	rgb(239, 84, 81)
HSL	hsl(1, 83%, 63%)
HSV	hsv(1, 66%, 94%)
CMYK	cmyk(0%, 64.9%, 66.1%, 6.3%)
CIE-LAB	lab(57.36, 59.29, 34.63)
CIE-LCH	lch(57.36, 68.67, 30.29°)
OKLab	oklab(65.52% 0.1734 0.0811)
OKLCH	oklch(65.52% 0.191 25.1)
XYZ	xyz(40.2563, 25.2911, 10.5449)
Luminance	0.2529 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EF5451 #51ECEF

analogous

#EF519D #EF5451 #EFA351

triadic

#EF5451 #51EF54 #5451EF

tetradic

#EF5451 #9DEF51 #51ECEF #A351EF

square

#EF5451 #9DEF51 #51ECEF #A351EF

split-complementary

#EF5451 #51EFA3 #519DEF

monochromatic

#B51411 #EA1D19 #EF5451 #F48B89 #F9C2C1

Accessibility & contrast

On white

3.47

#EF5451 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.06

#EF5451 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #EF5451

6.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EF5451	#FFFFFF	#000000	##000000
##EF5451	1.00	3.47	6.06	6.06
#FFFFFF	3.47	1.00	21.00	21.00
#000000	6.06	21.00	1.00	1.00
##000000	6.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E754F

Deuteranopia (green-blind)

#A5964D

Tritanopia (blue-blind)

#FF2E55

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #ef5451;
/* rgb */ color: rgb(239, 84, 81);
/* oklch */ color: oklch(65.5% 0.191 25.1);

Tailwind

colors: {
  custom: {
    50: '#fc8c82',
    500: '#ef5451',
    950: '#000000',
  },
}

SCSS

$custom: #ef5451;
$custom-light: #fc8c82;
$custom-dark: #000000;

JSON

{
  "hex": "#ef5451",
  "rgb": {
    "r": 239,
    "g": 84,
    "b": 81
  },
  "hsl": {
    "h": 1.139,
    "s": 83.158,
    "l": 62.745
  },
  "oklch": {
    "l": 0.6552,
    "c": 0.19145,
    "h": 25.1
  },
  "luminance": 0.25285
}

Semantic roles & 50–950 ramp

primary

#EF5451

secondary

#B1E9EA

accent

#DBE006

background

#FFF8F7

surface

#FFF0EE

border

#D7CBC9

text

#190D0A

muted

#867D7C

Preview Lab

Preview with #EF5451

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

Preview Lab → · Contrast checker → · Palette generator →