#310703#310703

#310703 is a very dark, moderate red. Relative luminance 0.008; OKLCH L 20.9% C 0.069 H 31.4°. Best body text is #FFFFFF at 18.07:1 contrast (WCAG AA passes).

Color values

HEX	#310703
RGB	rgb(49, 7, 3)
HSL	hsl(5, 88%, 10%)
HSV	hsv(5, 94%, 19%)
CMYK	cmyk(0%, 85.7%, 93.9%, 80.8%)
CIE-LAB	lab(7.33, 20.79, 10.19)
CIE-LCH	lch(7.33, 23.16, 26.11°)
OKLab	oklab(20.9% 0.059 0.036)
OKLCH	oklch(20.9% 0.069 31.4)
XYZ	xyz(1.3592, 0.8117, 0.1712)
Luminance	0.0081 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310703 #032D31

analogous

#310316 #310703 #311E03

triadic

#310703 #033107 #070331

tetradic

#310703 #163103 #032D31 #1E0331

square

#310703 #163103 #032D31 #1E0331

split-complementary

#310703 #03311E #031631

monochromatic

#1D0402 #1D0402 #310703 #6B0F07 #A4170A

Accessibility & contrast

On white

18.07

#310703 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#310703 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310703

18.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310703	#FFFFFF	#000000	##FFFFFF
##310703	1.00	18.07	1.16	18.07
#FFFFFF	18.07	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#131002

Deuteranopia (green-blind)

#1E1A02

Tritanopia (blue-blind)

#370006

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #310703;
/* rgb */ color: rgb(49, 7, 3);
/* oklch */ color: oklch(20.9% 0.069 31.4);

Tailwind

colors: {
  custom: {
    50: '#6d4a48',
    500: '#310703',
    950: '#000000',
  },
}

SCSS

$custom: #310703;
$custom-light: #6d4a48;
$custom-dark: #000000;

JSON

{
  "hex": "#310703",
  "rgb": {
    "r": 49,
    "g": 7,
    "b": 3
  },
  "hsl": {
    "h": 5.217,
    "s": 88.462,
    "l": 10.196
  },
  "oklch": {
    "l": 0.20897,
    "c": 0.06915,
    "h": 31.4
  },
  "luminance": 0.00811
}

Semantic roles & 50–950 ramp

primary

#310703

secondary

#1B6D74

accent

#ECFF29

background

#F6F4F4

surface

#ECE7E6

border

#C7C3C2

text

#070100

muted

#7A7777

Preview Lab

Preview with #310703

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

Preview Lab → · Contrast checker → · Palette generator →