#310D07#310D07

#310D07 is a very dark, moderate red. Relative luminance 0.010; OKLCH L 21.9% C 0.060 H 32.1°. Best body text is #FFFFFF at 17.63:1 contrast (WCAG AA passes).

Color values

HEX	#310D07
RGB	rgb(49, 13, 7)
HSL	hsl(9, 75%, 11%)
HSV	hsv(9, 86%, 19%)
CMYK	cmyk(0%, 73.5%, 85.7%, 80.8%)
CIE-LAB	lab(8.62, 17.85, 10.44)
CIE-LCH	lch(8.62, 20.68, 30.34°)
OKLab	oklab(21.91% 0.0511 0.0321)
OKLCH	oklch(21.91% 0.06 32.1)
XYZ	xyz(1.4490, 0.9564, 0.3093)
Luminance	0.0096 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310D07 #072B31

analogous

#310716 #310D07 #312207

triadic

#310D07 #07310D #0D0731

tetradic

#310D07 #163107 #072B31 #220731

square

#310D07 #163107 #072B31 #220731

split-complementary

#310D07 #073122 #071631

monochromatic

#1B0704 #1B0704 #310D07 #671B0F #9C2916

Accessibility & contrast

On white

17.63

#310D07 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#310D07 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310D07

17.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310D07	#FFFFFF	#000000	##FFFFFF
##310D07	1.00	17.63	1.19	17.63
#FFFFFF	17.63	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#171406

Deuteranopia (green-blind)

#201C06

Tritanopia (blue-blind)

#37050C

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #310d07;
/* rgb */ color: rgb(49, 13, 7);
/* oklch */ color: oklch(21.9% 0.060 32.1);

Tailwind

colors: {
  custom: {
    50: '#6c4d4a',
    500: '#310d07',
    950: '#000000',
  },
}

SCSS

$custom: #310d07;
$custom-light: #6c4d4a;
$custom-dark: #000000;

JSON

{
  "hex": "#310d07",
  "rgb": {
    "r": 49,
    "g": 13,
    "b": 7
  },
  "hsl": {
    "h": 8.571,
    "s": 75,
    "l": 10.98
  },
  "oklch": {
    "l": 0.21906,
    "c": 0.06033,
    "h": 32.1
  },
  "luminance": 0.00956
}

Semantic roles & 50–950 ramp

primary

#310D07

secondary

#236671

accent

#D7F236

background

#F6F4F4

surface

#ECE7E7

border

#C7C3C3

text

#070101

muted

#7A7777

Preview Lab

Preview with #310D07

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

Preview Lab → · Contrast checker → · Palette generator →