#310108#310108

#310108 is a very dark, moderate red. Relative luminance 0.007; OKLCH L 20.0% C 0.078 H 17.9°. Best body text is #FFFFFF at 18.45:1 contrast (WCAG AA passes).

Color values

HEX	#310108
RGB	rgb(49, 1, 8)
HSL	hsl(351, 96%, 10%)
HSV	hsv(351, 98%, 19%)
CMYK	cmyk(0%, 98%, 83.7%, 80.8%)
CIE-LAB	lab(6.25, 24.31, 6.58)
CIE-LCH	lch(6.25, 25.18, 15.15°)
OKLab	oklab(20.04% 0.0739 0.0239)
OKLCH	oklch(20.04% 0.078 17.9)
XYZ	xyz(1.3215, 0.6924, 0.2938)
Luminance	0.0069 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310108 #01312A

analogous

#310120 #310108 #311201

triadic

#310108 #083101 #010831

tetradic

#310108 #203101 #01312A #120131

square

#310108 #203101 #01312A #120131

split-complementary

#310108 #013112 #012031

monochromatic

#1E0105 #1E0105 #310108 #6D0212 #A9031C

Accessibility & contrast

On white

18.45

#310108 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.14

#310108 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310108

18.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310108	#FFFFFF	#000000	##FFFFFF
##310108	1.00	18.45	1.14	18.45
#FFFFFF	18.45	1.00	21.00	1.00
#000000	1.14	21.00	1.00	21.00
##FFFFFF	18.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E0D08

Deuteranopia (green-blind)

#1B1807

Tritanopia (blue-blind)

#370004

Achromatopsia (no color)

#141414

Design tokens & code

CSS

--color: #310108;
/* rgb */ color: rgb(49, 1, 8);
/* oklch */ color: oklch(20.0% 0.078 17.9);

Tailwind

colors: {
  custom: {
    50: '#6d474a',
    500: '#310108',
    950: '#000000',
  },
}

SCSS

$custom: #310108;
$custom-light: #6d474a;
$custom-dark: #000000;

JSON

{
  "hex": "#310108",
  "rgb": {
    "r": 49,
    "g": 1,
    "b": 8
  },
  "hsl": {
    "h": 351.25,
    "s": 96,
    "l": 9.804
  },
  "oklch": {
    "l": 0.20039,
    "c": 0.07763,
    "h": 17.9
  },
  "luminance": 0.00692
}

Semantic roles & 50–950 ramp

primary

#310108

secondary

#177769

accent

#FFE029

background

#F6F4F4

surface

#ECE6E7

border

#C7C2C3

text

#070001

muted

#7A7777

Preview Lab

Preview with #310108

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

Preview Lab → · Contrast checker → · Palette generator →