#310A0F#310A0F

#310A0F is a very dark, moderate red. Relative luminance 0.009; OKLCH L 21.6% C 0.063 H 16.7°. Best body text is #FFFFFF at 17.78:1 contrast (WCAG AA passes).

Color values

HEX	#310A0F
RGB	rgb(49, 10, 15)
HSL	hsl(352, 66%, 12%)
HSV	hsv(352, 80%, 19%)
CMYK	cmyk(0%, 79.6%, 69.4%, 80.8%)
CIE-LAB	lab(8.17, 20.15, 6.23)
CIE-LCH	lch(8.17, 21.09, 17.18°)
OKLab	oklab(21.62% 0.0603 0.0182)
OKLCH	oklch(21.62% 0.063 16.7)
XYZ	xyz(1.4615, 0.9047, 0.5495)
Luminance	0.0091 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310A0F #0A312C

analogous

#310A23 #310A0F #31190A

triadic

#310A0F #0F310A #0A0F31

tetradic

#310A0F #23310A #0A312C #190A31

square

#310A0F #23310A #0A312C #190A31

split-complementary

#310A0F #0A3119 #0A2331

monochromatic

#190508 #190508 #310A0F #64141F #971F2E

Accessibility & contrast

On white

17.78

#310A0F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#310A0F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310A0F

17.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310A0F	#FFFFFF	#000000	##FFFFFF
##310A0F	1.00	17.78	1.18	17.78
#FFFFFF	17.78	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#14130F

Deuteranopia (green-blind)

#1E1B0E

Tritanopia (blue-blind)

#36040C

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #310a0f;
/* rgb */ color: rgb(49, 10, 15);
/* oklch */ color: oklch(21.6% 0.063 16.7);

Tailwind

colors: {
  custom: {
    50: '#6c4c4e',
    500: '#310a0f',
    950: '#000000',
  },
}

SCSS

$custom: #310a0f;
$custom-light: #6c4c4e;
$custom-dark: #000000;

JSON

{
  "hex": "#310a0f",
  "rgb": {
    "r": 49,
    "g": 10,
    "b": 15
  },
  "hsl": {
    "h": 352.308,
    "s": 66.102,
    "l": 11.569
  },
  "oklch": {
    "l": 0.21621,
    "c": 0.06301,
    "h": 16.7
  },
  "luminance": 0.00905
}

Semantic roles & 50–950 ramp

primary

#310A0F

secondary

#296E65

accent

#E9D33F

background

#F6F4F4

surface

#ECE7E7

border

#C7C3C3

text

#070101

muted

#7A7777

Preview Lab

Preview with #310A0F

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

Preview Lab → · Contrast checker → · Palette generator →