#A7231D#A7231D

#A7231D is a mid, vivid red. Relative luminance 0.095; OKLCH L 47.7% C 0.169 H 28.3°. Best body text is #FFFFFF at 7.24:1 contrast (WCAG AA passes).

Color values

HEX	#A7231D
RGB	rgb(167, 35, 29)
HSL	hsl(3, 70%, 38%)
HSV	hsv(3, 83%, 65%)
CMYK	cmyk(0%, 79%, 82.6%, 34.5%)
CIE-LAB	lab(36.95, 52.17, 37.52)
CIE-LCH	lch(36.95, 64.26, 35.73°)
OKLab	oklab(47.65% 0.1488 0.08)
OKLCH	oklch(47.65% 0.169 28.3)
XYZ	xyz(16.7612, 9.5090, 2.1150)
Luminance	0.0951 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A7231D #1DA1A7

analogous

#A71D5C #A7231D #A7681D

triadic

#A7231D #1DA723 #231DA7

tetradic

#A7231D #5CA71D #1DA1A7 #681DA7

square

#A7231D #5CA71D #1DA1A7 #681DA7

split-complementary

#A7231D #1DA768 #1D5CA7

monochromatic

#3F0D0B #731814 #A7231D #DA2F28 #E3625C

Accessibility & contrast

On white

7.24

#A7231D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#A7231D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A7231D

7.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A7231D	#FFFFFF	#000000	##FFFFFF
##A7231D	1.00	7.24	2.90	7.24
#FFFFFF	7.24	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D451A

Deuteranopia (green-blind)

#6D6116

Tritanopia (blue-blind)

#B80023

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #a7231d;
/* rgb */ color: rgb(167, 35, 29);
/* oklch */ color: oklch(47.7% 0.169 28.3);

Tailwind

colors: {
  custom: {
    50: '#cb6a5a',
    500: '#a7231d',
    950: '#000000',
  },
}

SCSS

$custom: #a7231d;
$custom-light: #cb6a5a;
$custom-dark: #000000;

JSON

{
  "hex": "#a7231d",
  "rgb": {
    "r": 167,
    "g": 35,
    "b": 29
  },
  "hsl": {
    "h": 2.609,
    "s": 70.408,
    "l": 38.431
  },
  "oklch": {
    "l": 0.47655,
    "c": 0.169,
    "h": 28.3
  },
  "luminance": 0.09506
}

Semantic roles & 50–950 ramp

primary

#A7231D

secondary

#59C2C7

accent

#E5ED3B

background

#FDF6F5

surface

#FBECE9

border

#D4C7C5

text

#150704

muted

#837A79

Preview Lab

Preview with #A7231D

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

Preview Lab → · Contrast checker → · Palette generator →