#A7331B#A7331B

#A7331B is a mid, vivid red. Relative luminance 0.107; OKLCH L 49.2% C 0.156 H 33.4°. Best body text is #FFFFFF at 6.70:1 contrast (WCAG AA passes).

Color values

HEX	#A7331B
RGB	rgb(167, 51, 27)
HSL	hsl(10, 72%, 38%)
HSV	hsv(10, 84%, 65%)
CMYK	cmyk(0%, 69.5%, 83.8%, 34.5%)
CIE-LAB	lab(39.01, 46.36, 40.51)
CIE-LCH	lch(39.01, 61.56, 41.15°)
OKLab	oklab(49.19% 0.1304 0.0859)
OKLCH	oklch(49.19% 0.156 33.4)
XYZ	xyz(17.3200, 10.6649, 2.1832)
Luminance	0.1066 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A7331B #1B8FA7

analogous

#A71B49 #A7331B #A7791B

triadic

#A7331B #1BA733 #331BA7

tetradic

#A7331B #49A71B #1B8FA7 #791BA7

square

#A7331B #49A71B #1B8FA7 #791BA7

split-complementary

#A7331B #1BA779 #1B49A7

monochromatic

#3E130A #722312 #A7331B #DC4324 #E47058

Accessibility & contrast

On white

6.70

#A7331B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#A7331B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A7331B

6.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A7331B	#FFFFFF	#000000	##FFFFFF
##A7331B	1.00	6.70	3.13	6.70
#FFFFFF	6.70	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554C17

Deuteranopia (green-blind)

#726515

Tritanopia (blue-blind)

#B8072F

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #a7331b;
/* rgb */ color: rgb(167, 51, 27);
/* oklch */ color: oklch(49.2% 0.156 33.4);

Tailwind

colors: {
  custom: {
    50: '#ca725a',
    500: '#a7331b',
    950: '#000000',
  },
}

SCSS

$custom: #a7331b;
$custom-light: #ca725a;
$custom-dark: #000000;

JSON

{
  "hex": "#a7331b",
  "rgb": {
    "r": 167,
    "g": 51,
    "b": 27
  },
  "hsl": {
    "h": 10.286,
    "s": 72.165,
    "l": 38.039
  },
  "oklch": {
    "l": 0.49191,
    "c": 0.15613,
    "h": 33.4
  },
  "luminance": 0.10662
}

Semantic roles & 50–950 ramp

primary

#A7331B

secondary

#56B4C8

accent

#D0EF39

background

#FDF7F5

surface

#FBEDE9

border

#D4C8C5

text

#150804

muted

#837B79

Preview Lab

Preview with #A7331B

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

Preview Lab → · Contrast checker → · Palette generator →