#310C0F#310C0F

#310C0F is a very dark, moderate red. Relative luminance 0.009; OKLCH L 21.9% C 0.060 H 18.8°. Best body text is #FFFFFF at 17.65:1 contrast (WCAG AA passes).

Color values

HEX	#310C0F
RGB	rgb(49, 12, 15)
HSL	hsl(355, 61%, 12%)
HSV	hsv(355, 76%, 19%)
CMYK	cmyk(0%, 75.5%, 69.4%, 80.8%)
CIE-LAB	lab(8.57, 19.07, 6.81)
CIE-LCH	lch(8.57, 20.25, 19.66°)
OKLab	oklab(21.92% 0.0569 0.0194)
OKLCH	oklch(21.92% 0.06 18.8)
XYZ	xyz(1.4845, 0.9506, 0.5572)
Luminance	0.0095 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310C0F #0C312E

analogous

#310C22 #310C0F #311C0C

triadic

#310C0F #0F310C #0C0F31

tetradic

#310C0F #22310C #0C312E #1C0C31

square

#310C0F #22310C #0C312E #1C0C31

split-complementary

#310C0F #0C311C #0C2231

monochromatic

#190608 #190608 #310C0F #62181E #93242D

Accessibility & contrast

On white

17.65

#310C0F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#310C0F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310C0F

17.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310C0F	#FFFFFF	#000000	##FFFFFF
##310C0F	1.00	17.65	1.19	17.65
#FFFFFF	17.65	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#15140F

Deuteranopia (green-blind)

#1F1C0E

Tritanopia (blue-blind)

#36060D

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #310c0f;
/* rgb */ color: rgb(49, 12, 15);
/* oklch */ color: oklch(21.9% 0.060 18.8);

Tailwind

colors: {
  custom: {
    50: '#6c4d4e',
    500: '#310c0f',
    950: '#000000',
  },
}

SCSS

$custom: #310c0f;
$custom-light: #6c4d4e;
$custom-dark: #000000;

JSON

{
  "hex": "#310c0f",
  "rgb": {
    "r": 49,
    "g": 12,
    "b": 15
  },
  "hsl": {
    "h": 355.135,
    "s": 60.656,
    "l": 11.961
  },
  "oklch": {
    "l": 0.21921,
    "c": 0.06012,
    "h": 18.8
  },
  "luminance": 0.0095
}

Semantic roles & 50–950 ramp

primary

#310C0F

secondary

#2C6D68

accent

#E4D744

background

#F6F4F4

surface

#ECE7E7

border

#C7C3C3

text

#070101

muted

#7A7777

Preview Lab

Preview with #310C0F

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

Preview Lab → · Contrast checker → · Palette generator →