#EF644C#EF644C

#EF644C is a light, vivid red. Relative luminance 0.280; OKLCH L 67.4% C 0.177 H 31.8°. Best body text is #000000 at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#EF644C
RGB	rgb(239, 100, 76)
HSL	hsl(9, 84%, 62%)
HSV	hsv(9, 68%, 94%)
CMYK	cmyk(0%, 58.2%, 68.2%, 6.3%)
CIE-LAB	lab(59.88, 52.13, 40.43)
CIE-LCH	lch(59.88, 65.97, 37.79°)
OKLab	oklab(67.4% 0.15 0.0932)
OKLCH	oklch(67.4% 0.177 31.8)
XYZ	xyz(41.4624, 27.9924, 10.0558)
Luminance	0.2799 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EF644C #4CD7EF

analogous

#EF4C86 #EF644C #EFB54C

triadic

#EF644C #4CEF64 #644CEF

tetradic

#EF644C #86EF4C #4CD7EF #B54CEF

square

#EF644C #86EF4C #4CD7EF #B54CEF

split-complementary

#EF644C #4CEFB5 #4C86EF

monochromatic

#B12810 #E93415 #EF644C #F49584 #F9C5BC

Accessibility & contrast

On white

3.18

#EF644C on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.60

#EF644C on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #EF644C

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EF644C	#FFFFFF	#000000	##000000
##EF644C	1.00	3.18	6.60	6.60
#FFFFFF	3.18	1.00	21.00	21.00
#000000	6.60	21.00	1.00	1.00
##000000	6.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#897D49

Deuteranopia (green-blind)

#AC9C48

Tritanopia (blue-blind)

#FF465F

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #ef644c;
/* rgb */ color: rgb(239, 100, 76);
/* oklch */ color: oklch(67.4% 0.177 31.8);

Tailwind

colors: {
  custom: {
    50: '#fc957f',
    500: '#ef644c',
    950: '#000000',
  },
}

SCSS

$custom: #ef644c;
$custom-light: #fc957f;
$custom-dark: #000000;

JSON

{
  "hex": "#ef644c",
  "rgb": {
    "r": 239,
    "g": 100,
    "b": 76
  },
  "hsl": {
    "h": 8.834,
    "s": 83.59,
    "l": 61.765
  },
  "oklch": {
    "l": 0.67398,
    "c": 0.17659,
    "h": 31.8
  },
  "luminance": 0.27987
}

Semantic roles & 50–950 ramp

primary

#EF644C

secondary

#ADE1EA

accent

#C0E005

background

#FFF9F7

surface

#FFF2EE

border

#D7CCC9

text

#190E0A

muted

#877E7C

Preview Lab

Preview with #EF644C

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

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