#31020D#31020D

#31020D is a very dark, moderate red. Relative luminance 0.007; OKLCH L 20.3% C 0.076 H 12.4°. Best body text is #FFFFFF at 18.34:1 contrast (WCAG AA passes).

Color values

HEX	#31020D
RGB	rgb(49, 2, 13)
HSL	hsl(346, 92%, 10%)
HSV	hsv(346, 96%, 19%)
CMYK	cmyk(0%, 95.9%, 73.5%, 80.8%)
CIE-LAB	lab(6.56, 24.20, 4.88)
CIE-LCH	lch(6.56, 24.69, 11.40°)
OKLab	oklab(20.33% 0.0743 0.0163)
OKLCH	oklch(20.33% 0.076 12.4)
XYZ	xyz(1.3611, 0.7257, 0.4491)
Luminance	0.0073 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31020D #023126

analogous

#310225 #31020D #310E02

triadic

#31020D #0D3102 #020D31

tetradic

#31020D #253102 #023126 #0E0231

square

#31020D #253102 #023126 #0E0231

split-complementary

#31020D #02310E #022531

monochromatic

#1D0108 #1D0108 #31020D #6C041D #A7072C

Accessibility & contrast

On white

18.34

#31020D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#31020D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31020D

18.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31020D	#FFFFFF	#000000	##FFFFFF
##31020D	1.00	18.34	1.15	18.34
#FFFFFF	18.34	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E0E0D

Deuteranopia (green-blind)

#1B180C

Tritanopia (blue-blind)

#370006

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #31020d;
/* rgb */ color: rgb(49, 2, 13);
/* oklch */ color: oklch(20.3% 0.076 12.4);

Tailwind

colors: {
  custom: {
    50: '#6d474d',
    500: '#31020d',
    950: '#000000',
  },
}

SCSS

$custom: #31020d;
$custom-light: #6d474d;
$custom-dark: #000000;

JSON

{
  "hex": "#31020d",
  "rgb": {
    "r": 49,
    "g": 2,
    "b": 13
  },
  "hsl": {
    "h": 345.957,
    "s": 92.157,
    "l": 10
  },
  "oklch": {
    "l": 0.20334,
    "c": 0.07603,
    "h": 12.4
  },
  "luminance": 0.00725
}

Semantic roles & 50–950 ramp

primary

#31020D

secondary

#197560

accent

#FFCD29

background

#F6F4F4

surface

#ECE6E7

border

#C7C2C3

text

#070001

muted

#7A7777

Preview Lab

Preview with #31020D

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

Preview Lab → · Contrast checker → · Palette generator →