#310905#310905

#310905 is a very dark, moderate red. Relative luminance 0.009; OKLCH L 21.2% C 0.066 H 30.4°. Best body text is #FFFFFF at 17.92:1 contrast (WCAG AA passes).

Color values

HEX	#310905
RGB	rgb(49, 9, 5)
HSL	hsl(5, 81%, 11%)
HSV	hsv(5, 90%, 19%)
CMYK	cmyk(0%, 81.6%, 89.8%, 80.8%)
CIE-LAB	lab(7.76, 19.90, 10.01)
CIE-LCH	lch(7.76, 22.27, 26.70°)
OKLab	oklab(21.25% 0.0568 0.0333)
OKLCH	oklch(21.25% 0.066 30.4)
XYZ	xyz(1.3919, 0.8595, 0.2362)
Luminance	0.0086 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310905 #052D31

analogous

#310517 #310905 #311F05

triadic

#310905 #053109 #090531

tetradic

#310905 #173105 #052D31 #1F0531

square

#310905 #173105 #052D31 #1F0531

split-complementary

#310905 #05311F #051731

monochromatic

#1C0503 #1C0503 #310905 #69130B #A01D10

Accessibility & contrast

On white

17.92

#310905 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#310905 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310905

17.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310905	#FFFFFF	#000000	##FFFFFF
##310905	1.00	17.92	1.17	17.92
#FFFFFF	17.92	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	17.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#141104

Deuteranopia (green-blind)

#1E1A04

Tritanopia (blue-blind)

#370108

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #310905;
/* rgb */ color: rgb(49, 9, 5);
/* oklch */ color: oklch(21.2% 0.066 30.4);

Tailwind

colors: {
  custom: {
    50: '#6c4b49',
    500: '#310905',
    950: '#000000',
  },
}

SCSS

$custom: #310905;
$custom-light: #6c4b49;
$custom-dark: #000000;

JSON

{
  "hex": "#310905",
  "rgb": {
    "r": 49,
    "g": 9,
    "b": 5
  },
  "hsl": {
    "h": 5.455,
    "s": 81.481,
    "l": 10.588
  },
  "oklch": {
    "l": 0.21246,
    "c": 0.06589,
    "h": 30.4
  },
  "luminance": 0.00859
}

Semantic roles & 50–950 ramp

primary

#310905

secondary

#1F6B72

accent

#E6F830

background

#F6F4F4

surface

#ECE7E6

border

#C7C3C2

text

#070100

muted

#7A7777

Preview Lab

Preview with #310905

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

Preview Lab → · Contrast checker → · Palette generator →