#310D02#310D02

#310D02 is a very dark, moderate red. Relative luminance 0.009; OKLCH L 21.8% C 0.063 H 40.0°. Best body text is #FFFFFF at 17.66:1 contrast (WCAG AA passes).

Color values

HEX	#310D02
RGB	rgb(49, 13, 2)
HSL	hsl(14, 92%, 10%)
HSV	hsv(14, 96%, 19%)
CMYK	cmyk(0%, 73.5%, 95.9%, 80.8%)
CIE-LAB	lab(8.53, 17.47, 12.34)
CIE-LCH	lch(8.53, 21.39, 35.24°)
OKLab	oklab(21.8% 0.0481 0.0403)
OKLCH	oklch(21.8% 0.063 40)
XYZ	xyz(1.4217, 0.9454, 0.1650)
Luminance	0.0095 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310D02 #022631

analogous

#31020E #310D02 #312502

triadic

#310D02 #02310D #0D0231

tetradic

#310D02 #0E3102 #022631 #250231

square

#310D02 #0E3102 #022631 #250231

split-complementary

#310D02 #023125 #020E31

monochromatic

#1D0801 #1D0801 #310D02 #6C1D04 #A72C07

Accessibility & contrast

On white

17.66

#310D02 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#310D02 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310D02

17.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310D02	#FFFFFF	#000000	##FFFFFF
##310D02	1.00	17.66	1.19	17.66
#FFFFFF	17.66	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#171301

Deuteranopia (green-blind)

#201C01

Tritanopia (blue-blind)

#37050A

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #310d02;
/* rgb */ color: rgb(49, 13, 2);
/* oklch */ color: oklch(21.8% 0.063 40.0);

Tailwind

colors: {
  custom: {
    50: '#6c4d47',
    500: '#310d02',
    950: '#000000',
  },
}

SCSS

$custom: #310d02;
$custom-light: #6c4d47;
$custom-dark: #000000;

JSON

{
  "hex": "#310d02",
  "rgb": {
    "r": 49,
    "g": 13,
    "b": 2
  },
  "hsl": {
    "h": 14.043,
    "s": 92.157,
    "l": 10
  },
  "oklch": {
    "l": 0.21804,
    "c": 0.06274,
    "h": 40
  },
  "luminance": 0.00945
}

Semantic roles & 50–950 ramp

primary

#310D02

secondary

#196075

accent

#CDFF29

background

#F6F4F4

surface

#ECE7E6

border

#C7C3C2

text

#070100

muted

#7A7777

Preview Lab

Preview with #310D02

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

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