#310C0C#310C0C

#310C0C is a very dark, moderate red. Relative luminance 0.009; OKLCH L 21.8% C 0.060 H 23.5°. Best body text is #FFFFFF at 17.67:1 contrast (WCAG AA passes).

Color values

HEX	#310C0C
RGB	rgb(49, 12, 12)
HSL	hsl(0, 61%, 12%)
HSV	hsv(0, 76%, 19%)
CMYK	cmyk(0%, 75.5%, 75.5%, 80.8%)
CIE-LAB	lab(8.50, 18.80, 8.19)
CIE-LCH	lch(8.50, 20.50, 23.54°)
OKLab	oklab(21.85% 0.0554 0.0241)
OKLCH	oklch(21.85% 0.06 23.5)
XYZ	xyz(1.4646, 0.9427, 0.4526)
Luminance	0.0094 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310C0C #0C3131

analogous

#310C1F #310C0C #311F0C

triadic

#310C0C #0C310C #0C0C31

tetradic

#310C0C #1F310C #0C3131 #1F0C31

square

#310C0C #1F310C #0C3131 #1F0C31

split-complementary

#310C0C #0C311F #0C1F31

monochromatic

#190606 #190606 #310C0C #621818 #932424

Accessibility & contrast

On white

17.67

#310C0C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#310C0C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310C0C

17.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310C0C	#FFFFFF	#000000	##FFFFFF
##310C0C	1.00	17.67	1.19	17.67
#FFFFFF	17.67	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#16140C

Deuteranopia (green-blind)

#1F1B0B

Tritanopia (blue-blind)

#37050C

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #310c0c;
/* rgb */ color: rgb(49, 12, 12);
/* oklch */ color: oklch(21.8% 0.060 23.5);

Tailwind

colors: {
  custom: {
    50: '#6c4d4c',
    500: '#310c0c',
    950: '#000000',
  },
}

SCSS

$custom: #310c0c;
$custom-light: #6c4d4c;
$custom-dark: #000000;

JSON

{
  "hex": "#310c0c",
  "rgb": {
    "r": 49,
    "g": 12,
    "b": 12
  },
  "hsl": {
    "h": 0,
    "s": 60.656,
    "l": 11.961
  },
  "oklch": {
    "l": 0.21848,
    "c": 0.06043,
    "h": 23.5
  },
  "luminance": 0.00942
}

Semantic roles & 50–950 ramp

primary

#310C0C

secondary

#2C6D6D

accent

#E4E444

background

#F6F4F4

surface

#ECE7E7

border

#C7C3C3

text

#070101

muted

#7A7777

Preview Lab

Preview with #310C0C

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

Preview Lab → · Contrast checker → · Palette generator →