#310A01#310A01

#310A01 is a very dark, moderate red. Relative luminance 0.009; OKLCH L 21.3% C 0.067 H 38.0°. Best body text is #FFFFFF at 17.88:1 contrast (WCAG AA passes).

Color values

HEX	#310A01
RGB	rgb(49, 10, 1)
HSL	hsl(11, 96%, 10%)
HSV	hsv(11, 98%, 19%)
CMYK	cmyk(0%, 79.6%, 98%, 80.8%)
CIE-LAB	lab(7.88, 19.07, 11.81)
CIE-LCH	lch(7.88, 22.43, 31.77°)
OKLab	oklab(21.31% 0.0525 0.041)
OKLCH	oklch(21.31% 0.067 38)
XYZ	xyz(1.3808, 0.8725, 0.1244)
Luminance	0.0087 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310A01 #012831

analogous

#310110 #310A01 #312201

triadic

#310A01 #01310A #0A0131

tetradic

#310A01 #103101 #012831 #220131

square

#310A01 #103101 #012831 #220131

split-complementary

#310A01 #013122 #011031

monochromatic

#1E0601 #1E0601 #310A01 #6D1602 #A92203

Accessibility & contrast

On white

17.88

#310A01 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#310A01 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310A01

17.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310A01	#FFFFFF	#000000	##FFFFFF
##310A01	1.00	17.88	1.17	17.88
#FFFFFF	17.88	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	17.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#161200

Deuteranopia (green-blind)

#1F1B00

Tritanopia (blue-blind)

#370208

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #310a01;
/* rgb */ color: rgb(49, 10, 1);
/* oklch */ color: oklch(21.3% 0.067 38.0);

Tailwind

colors: {
  custom: {
    50: '#6c4b47',
    500: '#310a01',
    950: '#000000',
  },
}

SCSS

$custom: #310a01;
$custom-light: #6c4b47;
$custom-dark: #000000;

JSON

{
  "hex": "#310a01",
  "rgb": {
    "r": 49,
    "g": 10,
    "b": 1
  },
  "hsl": {
    "h": 11.25,
    "s": 96,
    "l": 9.804
  },
  "oklch": {
    "l": 0.21309,
    "c": 0.06661,
    "h": 38
  },
  "luminance": 0.00872
}

Semantic roles & 50–950 ramp

primary

#310A01

secondary

#176577

accent

#D7FF29

background

#F6F4F3

surface

#ECE7E5

border

#C7C3C1

text

#070100

muted

#7A7777

Preview Lab

Preview with #310A01

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

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