#A6331D#A6331D

#A6331D is a mid, vivid red. Relative luminance 0.106; OKLCH L 49.0% C 0.155 H 32.9°. Best body text is #FFFFFF at 6.75:1 contrast (WCAG AA passes).

Color values

HEX	#A6331D
RGB	rgb(166, 51, 29)
HSL	hsl(10, 70%, 38%)
HSV	hsv(10, 83%, 65%)
CMYK	cmyk(0%, 69.3%, 82.5%, 34.9%)
CIE-LAB	lab(38.84, 46.07, 39.27)
CIE-LCH	lch(38.84, 60.54, 40.44°)
OKLab	oklab(49.03% 0.1299 0.084)
OKLCH	oklch(49.03% 0.155 32.9)
XYZ	xyz(17.1335, 10.5659, 2.2994)
Luminance	0.1056 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A6331D #1D90A6

analogous

#A61D4B #A6331D #A6771D

triadic

#A6331D #1DA633 #331DA6

tetradic

#A6331D #4BA61D #1D90A6 #771DA6

square

#A6331D #4BA61D #1D90A6 #771DA6

split-complementary

#A6331D #1DA677 #1D4BA6

monochromatic

#3E130B #722314 #A6331D #D94427 #E2715B

Accessibility & contrast

On white

6.75

#A6331D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#A6331D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A6331D

6.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A6331D	#FFFFFF	#000000	##FFFFFF
##A6331D	1.00	6.75	3.11	6.75
#FFFFFF	6.75	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554B19

Deuteranopia (green-blind)

#716517

Tritanopia (blue-blind)

#B7092F

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #a6331d;
/* rgb */ color: rgb(166, 51, 29);
/* oklch */ color: oklch(49.0% 0.155 32.9);

Tailwind

colors: {
  custom: {
    50: '#c9725b',
    500: '#a6331d',
    950: '#000000',
  },
}

SCSS

$custom: #a6331d;
$custom-light: #c9725b;
$custom-dark: #000000;

JSON

{
  "hex": "#a6331d",
  "rgb": {
    "r": 166,
    "g": 51,
    "b": 29
  },
  "hsl": {
    "h": 9.635,
    "s": 70.256,
    "l": 38.235
  },
  "oklch": {
    "l": 0.49034,
    "c": 0.15472,
    "h": 32.9
  },
  "luminance": 0.10563
}

Semantic roles & 50–950 ramp

primary

#A6331D

secondary

#59B5C6

accent

#D0ED3B

background

#FDF7F5

surface

#FBEDE9

border

#D4C8C5

text

#150804

muted

#837B79

Preview Lab

Preview with #A6331D

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

Preview Lab → · Contrast checker → · Palette generator →