#331010#331010

#331010 is a very dark, muted red. Relative luminance 0.011; OKLCH L 23.0% C 0.057 H 22.6°. Best body text is #FFFFFF at 17.18:1 contrast (WCAG AA passes).

Color values

HEX	#331010
RGB	rgb(51, 16, 16)
HSL	hsl(0, 52%, 13%)
HSV	hsv(0, 69%, 20%)
CMYK	cmyk(0%, 68.6%, 68.6%, 80%)
CIE-LAB	lab(9.89, 17.71, 8.21)
CIE-LCH	lch(9.89, 19.52, 24.88°)
OKLab	oklab(23% 0.0526 0.0219)
OKLCH	oklch(23% 0.057 22.6)
XYZ	xyz(1.6442, 1.1120, 0.6182)
Luminance	0.0111 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331010 #103333

analogous

#331021 #331010 #332110

triadic

#331010 #103310 #101033

tetradic

#331010 #213310 #103333 #211033

square

#331010 #213310 #103333 #211033

split-complementary

#331010 #103321 #102133

monochromatic

#170707 #170707 #331010 #621F1F #902D2D

Accessibility & contrast

On white

17.18

#331010 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#331010 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331010

17.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331010	#FFFFFF	#000000	##FFFFFF
##331010	1.00	17.18	1.22	17.18
#FFFFFF	17.18	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#191710

Deuteranopia (green-blind)

#211E0F

Tritanopia (blue-blind)

#390A10

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #331010;
/* rgb */ color: rgb(51, 16, 16);
/* oklch */ color: oklch(23.0% 0.057 22.6);

Tailwind

colors: {
  custom: {
    50: '#6e4f4e',
    500: '#331010',
    950: '#000000',
  },
}

SCSS

$custom: #331010;
$custom-light: #6e4f4e;
$custom-dark: #000000;

JSON

{
  "hex": "#331010",
  "rgb": {
    "r": 51,
    "g": 16,
    "b": 16
  },
  "hsl": {
    "h": 0,
    "s": 52.239,
    "l": 13.137
  },
  "oklch": {
    "l": 0.23001,
    "c": 0.05694,
    "h": 22.6
  },
  "luminance": 0.01112
}

Semantic roles & 50–950 ramp

primary

#331010

secondary

#326C6C

accent

#DCDC4C

background

#F6F4F4

surface

#ECE7E7

border

#C7C3C3

text

#070201

muted

#7A7877

Preview Lab

Preview with #331010

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

Preview Lab → · Contrast checker → · Palette generator →