#A42637#A42637

#A42637 is a mid, vivid red. Relative luminance 0.096; OKLCH L 47.7% C 0.161 H 18.8°. Best body text is #FFFFFF at 7.21:1 contrast (WCAG AA passes).

Color values

HEX	#A42637
RGB	rgb(164, 38, 55)
HSL	hsl(352, 62%, 40%)
HSV	hsv(352, 77%, 64%)
CMYK	cmyk(0%, 76.8%, 66.5%, 35.7%)
CIE-LAB	lab(37.04, 51.41, 21.89)
CIE-LCH	lch(37.04, 55.88, 23.06°)
OKLab	oklab(47.73% 0.1525 0.052)
OKLCH	oklch(47.73% 0.161 18.8)
XYZ	xyz(16.6944, 9.5571, 4.5793)
Luminance	0.0955 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A42637 #26A493

analogous

#A42676 #A42637 #A45426

triadic

#A42637 #37A426 #2637A4

tetradic

#A42637 #76A426 #26A493 #5426A4

square

#A42637 #76A426 #26A493 #5426A4

split-complementary

#A42637 #26A454 #2676A4

monochromatic

#410F16 #721A26 #A42637 #D1374B #DC6878

Accessibility & contrast

On white

7.21

#A42637 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.91

#A42637 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A42637

7.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A42637	#FFFFFF	#000000	##FFFFFF
##A42637	1.00	7.21	2.91	7.21
#FFFFFF	7.21	1.00	21.00	1.00
#000000	2.91	21.00	1.00	21.00
##FFFFFF	7.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A4637

Deuteranopia (green-blind)

#6A6133

Tritanopia (blue-blind)

#B4002D

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #a42637;
/* rgb */ color: rgb(164, 38, 55);
/* oklch */ color: oklch(47.7% 0.161 18.8);

Tailwind

colors: {
  custom: {
    50: '#c66c6d',
    500: '#a42637',
    950: '#000000',
  },
}

SCSS

$custom: #a42637;
$custom-light: #c66c6d;
$custom-dark: #000000;

JSON

{
  "hex": "#a42637",
  "rgb": {
    "r": 164,
    "g": 38,
    "b": 55
  },
  "hsl": {
    "h": 351.905,
    "s": 62.376,
    "l": 39.608
  },
  "oklch": {
    "l": 0.47725,
    "c": 0.16114,
    "h": 18.8
  },
  "luminance": 0.09555
}

Semantic roles & 50–950 ramp

primary

#A42637

secondary

#64C2B5

accent

#E5CF42

background

#FDF6F6

surface

#FAECEB

border

#D3C7C6

text

#140707

muted

#837A7A

Preview Lab

Preview with #A42637

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

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