#A71F37#A71F37

#A71F37 is a mid, vivid red. Relative luminance 0.095; OKLCH L 47.7% C 0.170 H 17.7°. Best body text is #FFFFFF at 7.26:1 contrast (WCAG AA passes).

Color values

HEX	#A71F37
RGB	rgb(167, 31, 55)
HSL	hsl(349, 69%, 39%)
HSV	hsv(349, 81%, 65%)
CMYK	cmyk(0%, 81.4%, 67.1%, 34.5%)
CIE-LAB	lab(36.88, 54.43, 21.82)
CIE-LCH	lch(36.88, 58.64, 21.84°)
OKLab	oklab(47.72% 0.1618 0.0517)
OKLCH	oklch(47.72% 0.17 17.7)
XYZ	xyz(17.1178, 9.4740, 4.5410)
Luminance	0.0947 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A71F37 #1FA78F

analogous

#A71F7B #A71F37 #A74B1F

triadic

#A71F37 #37A71F #1F37A7

tetradic

#A71F37 #7BA71F #1FA78F #4B1FA7

square

#A71F37 #7BA71F #1FA78F #4B1FA7

split-complementary

#A71F37 #1FA74B #1F7BA7

monochromatic

#400C15 #731526 #A71F37 #D82B4A #E15F76

Accessibility & contrast

On white

7.26

#A71F37 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#A71F37 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A71F37

7.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A71F37	#FFFFFF	#000000	##FFFFFF
##A71F37	1.00	7.26	2.89	7.26
#FFFFFF	7.26	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#484537

Deuteranopia (green-blind)

#6A6133

Tritanopia (blue-blind)

#B8002A

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #a71f37;
/* rgb */ color: rgb(167, 31, 55);
/* oklch */ color: oklch(47.7% 0.170 17.7);

Tailwind

colors: {
  custom: {
    50: '#c96a6d',
    500: '#a71f37',
    950: '#000000',
  },
}

SCSS

$custom: #a71f37;
$custom-light: #c96a6d;
$custom-dark: #000000;

JSON

{
  "hex": "#a71f37",
  "rgb": {
    "r": 167,
    "g": 31,
    "b": 55
  },
  "hsl": {
    "h": 349.412,
    "s": 68.687,
    "l": 38.824
  },
  "oklch": {
    "l": 0.47717,
    "c": 0.16984,
    "h": 17.7
  },
  "luminance": 0.09471
}

Semantic roles & 50–950 ramp

primary

#A71F37

secondary

#5CC6B3

accent

#ECCD3C

background

#FDF6F6

surface

#FAECEB

border

#D3C7C6

text

#150707

muted

#837A7A

Preview Lab

Preview with #A71F37

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

Preview Lab → · Contrast checker → · Palette generator →