#310704#310704

#310704 is a very dark, moderate red. Relative luminance 0.008; OKLCH L 20.9% C 0.069 H 29.8°. Best body text is #FFFFFF at 18.06:1 contrast (WCAG AA passes).

Color values

HEX	#310704
RGB	rgb(49, 7, 4)
HSL	hsl(4, 85%, 10%)
HSV	hsv(4, 92%, 19%)
CMYK	cmyk(0%, 85.7%, 91.8%, 80.8%)
CIE-LAB	lab(7.35, 20.87, 9.81)
CIE-LCH	lch(7.35, 23.06, 25.18°)
OKLab	oklab(20.92% 0.0597 0.0342)
OKLCH	oklch(20.92% 0.069 29.8)
XYZ	xyz(1.3647, 0.8139, 0.2001)
Luminance	0.0081 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310704 #042E31

analogous

#310417 #310704 #311D04

triadic

#310704 #043107 #070431

tetradic

#310704 #173104 #042E31 #1D0431

square

#310704 #173104 #042E31 #1D0431

split-complementary

#310704 #04311D #041731

monochromatic

#1C0402 #1C0402 #310704 #6A0F09 #A2170D

Accessibility & contrast

On white

18.06

#310704 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#310704 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310704

18.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310704	#FFFFFF	#000000	##FFFFFF
##310704	1.00	18.06	1.16	18.06
#FFFFFF	18.06	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#131003

Deuteranopia (green-blind)

#1E1A03

Tritanopia (blue-blind)

#370007

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #310704;
/* rgb */ color: rgb(49, 7, 4);
/* oklch */ color: oklch(20.9% 0.069 29.8);

Tailwind

colors: {
  custom: {
    50: '#6d4a48',
    500: '#310704',
    950: '#000000',
  },
}

SCSS

$custom: #310704;
$custom-light: #6d4a48;
$custom-dark: #000000;

JSON

{
  "hex": "#310704",
  "rgb": {
    "r": 49,
    "g": 7,
    "b": 4
  },
  "hsl": {
    "h": 4,
    "s": 84.906,
    "l": 10.392
  },
  "oklch": {
    "l": 0.20919,
    "c": 0.06879,
    "h": 29.8
  },
  "luminance": 0.00814
}

Semantic roles & 50–950 ramp

primary

#310704

secondary

#1D6E73

accent

#EDFB2D

background

#F6F4F4

surface

#ECE7E6

border

#C7C3C2

text

#070100

muted

#7A7777

Preview Lab

Preview with #310704

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

Preview Lab → · Contrast checker → · Palette generator →