#310B07#310B07

#310B07 is a very dark, moderate red. Relative luminance 0.009; OKLCH L 21.6% C 0.063 H 29.6°. Best body text is #FFFFFF at 17.77:1 contrast (WCAG AA passes).

Color values

HEX	#310B07
RGB	rgb(49, 11, 7)
HSL	hsl(6, 75%, 11%)
HSV	hsv(6, 86%, 19%)
CMYK	cmyk(0%, 77.6%, 85.7%, 80.8%)
CIE-LAB	lab(8.20, 18.98, 9.83)
CIE-LCH	lch(8.20, 21.37, 27.38°)
OKLab	oklab(21.59% 0.0546 0.031)
OKLCH	oklch(21.59% 0.063 29.6)
XYZ	xyz(1.4248, 0.9079, 0.3012)
Luminance	0.0091 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310B07 #072D31

analogous

#310718 #310B07 #312007

triadic

#310B07 #07310B #0B0731

tetradic

#310B07 #183107 #072D31 #200731

square

#310B07 #183107 #072D31 #200731

split-complementary

#310B07 #073120 #071831

monochromatic

#1B0604 #1B0604 #310B07 #67170F #9C2316

Accessibility & contrast

On white

17.77

#310B07 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#310B07 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310B07

17.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310B07	#FFFFFF	#000000	##FFFFFF
##310B07	1.00	17.77	1.18	17.77
#FFFFFF	17.77	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#161306

Deuteranopia (green-blind)

#1F1B06

Tritanopia (blue-blind)

#37030A

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #310b07;
/* rgb */ color: rgb(49, 11, 7);
/* oklch */ color: oklch(21.6% 0.063 29.6);

Tailwind

colors: {
  custom: {
    50: '#6c4c4a',
    500: '#310b07',
    950: '#000000',
  },
}

SCSS

$custom: #310b07;
$custom-light: #6c4c4a;
$custom-dark: #000000;

JSON

{
  "hex": "#310b07",
  "rgb": {
    "r": 49,
    "g": 11,
    "b": 7
  },
  "hsl": {
    "h": 5.714,
    "s": 75,
    "l": 10.98
  },
  "oklch": {
    "l": 0.21587,
    "c": 0.06282,
    "h": 29.6
  },
  "luminance": 0.00908
}

Semantic roles & 50–950 ramp

primary

#310B07

secondary

#236971

accent

#E0F236

background

#F6F4F4

surface

#ECE7E7

border

#C7C3C3

text

#070101

muted

#7A7777

Preview Lab

Preview with #310B07

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

Preview Lab → · Contrast checker → · Palette generator →