#EF634C#EF634C

#EF634C is a light, vivid red. Relative luminance 0.278; OKLCH L 67.3% C 0.178 H 31.5°. Best body text is #000000 at 6.56:1 contrast (WCAG AA passes).

Color values

HEX	#EF634C
RGB	rgb(239, 99, 76)
HSL	hsl(8, 84%, 62%)
HSV	hsv(8, 68%, 94%)
CMYK	cmyk(0%, 58.6%, 68.2%, 6.3%)
CIE-LAB	lab(59.71, 52.58, 40.23)
CIE-LCH	lch(59.71, 66.20, 37.42°)
OKLab	oklab(67.27% 0.1514 0.0927)
OKLCH	oklch(67.27% 0.178 31.5)
XYZ	xyz(41.3671, 27.8017, 10.0240)
Luminance	0.2780 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EF634C #4CD8EF

analogous

#EF4C87 #EF634C #EFB44C

triadic

#EF634C #4CEF63 #634CEF

tetradic

#EF634C #87EF4C #4CD8EF #B44CEF

square

#EF634C #87EF4C #4CD8EF #B44CEF

split-complementary

#EF634C #4CEFB4 #4C87EF

monochromatic

#B12710 #E93315 #EF634C #F49484 #F9C5BC

Accessibility & contrast

On white

3.20

#EF634C on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.56

#EF634C on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #EF634C

6.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EF634C	#FFFFFF	#000000	##000000
##EF634C	1.00	3.20	6.56	6.56
#FFFFFF	3.20	1.00	21.00	21.00
#000000	6.56	21.00	1.00	1.00
##000000	6.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#887D49

Deuteranopia (green-blind)

#AB9B48

Tritanopia (blue-blind)

#FF455E

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #ef634c;
/* rgb */ color: rgb(239, 99, 76);
/* oklch */ color: oklch(67.3% 0.178 31.5);

Tailwind

colors: {
  custom: {
    50: '#fc947f',
    500: '#ef634c',
    950: '#000000',
  },
}

SCSS

$custom: #ef634c;
$custom-light: #fc947f;
$custom-dark: #000000;

JSON

{
  "hex": "#ef634c",
  "rgb": {
    "r": 239,
    "g": 99,
    "b": 76
  },
  "hsl": {
    "h": 8.466,
    "s": 83.59,
    "l": 61.765
  },
  "oklch": {
    "l": 0.67267,
    "c": 0.17756,
    "h": 31.5
  },
  "luminance": 0.27796
}

Semantic roles & 50–950 ramp

primary

#EF634C

secondary

#ADE1EA

accent

#C1E005

background

#FFF9F7

surface

#FFF2EE

border

#D7CCC9

text

#190D0A

muted

#877E7C

Preview Lab

Preview with #EF634C

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

Preview Lab → · Contrast checker → · Palette generator →