#310902#310902

#310902 is a very dark, moderate red. Relative luminance 0.009; OKLCH L 21.2% C 0.067 H 35.2°. Best body text is #FFFFFF at 17.94:1 contrast (WCAG AA passes).

Color values

HEX	#310902
RGB	rgb(49, 9, 2)
HSL	hsl(9, 92%, 10%)
HSV	hsv(9, 96%, 19%)
CMYK	cmyk(0%, 81.6%, 95.9%, 80.8%)
CIE-LAB	lab(7.70, 19.67, 11.14)
CIE-LCH	lch(7.70, 22.61, 29.53°)
OKLab	oklab(21.18% 0.0549 0.0387)
OKLCH	oklch(21.18% 0.067 35.2)
XYZ	xyz(1.3754, 0.8529, 0.1496)
Luminance	0.0085 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310902 #022A31

analogous

#310213 #310902 #312002

triadic

#310902 #023109 #090231

tetradic

#310902 #133102 #022A31 #200231

square

#310902 #133102 #022A31 #200231

split-complementary

#310902 #023120 #021331

monochromatic

#1D0501 #1D0501 #310902 #6C1404 #A71F07

Accessibility & contrast

On white

17.94

#310902 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#310902 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310902

17.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310902	#FFFFFF	#000000	##FFFFFF
##310902	1.00	17.94	1.17	17.94
#FFFFFF	17.94	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	17.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#151101

Deuteranopia (green-blind)

#1F1A01

Tritanopia (blue-blind)

#370107

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #310902;
/* rgb */ color: rgb(49, 9, 2);
/* oklch */ color: oklch(21.2% 0.067 35.2);

Tailwind

colors: {
  custom: {
    50: '#6d4b47',
    500: '#310902',
    950: '#000000',
  },
}

SCSS

$custom: #310902;
$custom-light: #6d4b47;
$custom-dark: #000000;

JSON

{
  "hex": "#310902",
  "rgb": {
    "r": 49,
    "g": 9,
    "b": 2
  },
  "hsl": {
    "h": 8.936,
    "s": 92.157,
    "l": 10
  },
  "oklch": {
    "l": 0.21181,
    "c": 0.06715,
    "h": 35.2
  },
  "luminance": 0.00853
}

Semantic roles & 50–950 ramp

primary

#310902

secondary

#196875

accent

#DFFF29

background

#F6F4F4

surface

#ECE7E6

border

#C7C3C2

text

#070100

muted

#7A7777

Preview Lab

Preview with #310902

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

Preview Lab → · Contrast checker → · Palette generator →