#310707#310707

#310707 is a very dark, moderate red. Relative luminance 0.008; OKLCH L 21.0% C 0.068 H 25.2°. Best body text is #FFFFFF at 18.04:1 contrast (WCAG AA passes).

Color values

HEX	#310707
RGB	rgb(49, 7, 7)
HSL	hsl(0, 75%, 11%)
HSV	hsv(0, 86%, 19%)
CMYK	cmyk(0%, 85.7%, 85.7%, 80.8%)
CIE-LAB	lab(7.41, 21.10, 8.68)
CIE-LCH	lch(7.41, 22.81, 22.36°)
OKLab	oklab(20.99% 0.0615 0.029)
OKLCH	oklch(20.99% 0.068 25.2)
XYZ	xyz(1.3811, 0.8205, 0.2866)
Luminance	0.0082 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310707 #073131

analogous

#31071C #310707 #311C07

triadic

#310707 #073107 #070731

tetradic

#310707 #1C3107 #073131 #1C0731

square

#310707 #1C3107 #073131 #1C0731

split-complementary

#310707 #07311C #071C31

monochromatic

#1B0404 #1B0404 #310707 #670F0F #9C1616

Accessibility & contrast

On white

18.04

#310707 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#310707 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310707

18.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310707	#FFFFFF	#000000	##FFFFFF
##310707	1.00	18.04	1.16	18.04
#FFFFFF	18.04	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#131107

Deuteranopia (green-blind)

#1D1A06

Tritanopia (blue-blind)

#370007

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #310707;
/* rgb */ color: rgb(49, 7, 7);
/* oklch */ color: oklch(21.0% 0.068 25.2);

Tailwind

colors: {
  custom: {
    50: '#6d4a4a',
    500: '#310707',
    950: '#000000',
  },
}

SCSS

$custom: #310707;
$custom-light: #6d4a4a;
$custom-dark: #000000;

JSON

{
  "hex": "#310707",
  "rgb": {
    "r": 49,
    "g": 7,
    "b": 7
  },
  "hsl": {
    "h": 0,
    "s": 75,
    "l": 10.98
  },
  "oklch": {
    "l": 0.20986,
    "c": 0.068,
    "h": 25.2
  },
  "luminance": 0.0082
}

Semantic roles & 50–950 ramp

primary

#310707

secondary

#237171

accent

#F2F236

background

#F6F4F4

surface

#ECE7E7

border

#C7C3C3

text

#070101

muted

#7A7777

Preview Lab

Preview with #310707

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

Preview Lab → · Contrast checker → · Palette generator →