#310A10#310A10

#310A10 is a very dark, moderate red. Relative luminance 0.009; OKLCH L 21.6% C 0.063 H 15.2°. Best body text is #FFFFFF at 17.78:1 contrast (WCAG AA passes).

Color values

HEX	#310A10
RGB	rgb(49, 10, 16)
HSL	hsl(351, 66%, 12%)
HSV	hsv(351, 80%, 19%)
CMYK	cmyk(0%, 79.6%, 67.3%, 80.8%)
CIE-LAB	lab(8.20, 20.24, 5.72)
CIE-LCH	lch(8.20, 21.03, 15.79°)
OKLab	oklab(21.65% 0.0608 0.0165)
OKLCH	oklch(21.65% 0.063 15.2)
XYZ	xyz(1.4688, 0.9077, 0.5880)
Luminance	0.0091 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310A10 #0A312B

analogous

#310A24 #310A10 #31180A

triadic

#310A10 #10310A #0A1031

tetradic

#310A10 #24310A #0A312B #180A31

square

#310A10 #24310A #0A312B #180A31

split-complementary

#310A10 #0A3118 #0A2431

monochromatic

#190508 #190508 #310A10 #641421 #971F31

Accessibility & contrast

On white

17.78

#310A10 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#310A10 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310A10

17.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310A10	#FFFFFF	#000000	##FFFFFF
##310A10	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)

#141310

Deuteranopia (green-blind)

#1E1B0F

Tritanopia (blue-blind)

#36040C

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #310a10;
/* rgb */ color: rgb(49, 10, 16);
/* oklch */ color: oklch(21.6% 0.063 15.2);

Tailwind

colors: {
  custom: {
    50: '#6c4c4e',
    500: '#310a10',
    950: '#000000',
  },
}

SCSS

$custom: #310a10;
$custom-light: #6c4c4e;
$custom-dark: #000000;

JSON

{
  "hex": "#310a10",
  "rgb": {
    "r": 49,
    "g": 10,
    "b": 16
  },
  "hsl": {
    "h": 350.769,
    "s": 66.102,
    "l": 11.569
  },
  "oklch": {
    "l": 0.21649,
    "c": 0.06304,
    "h": 15.2
  },
  "luminance": 0.00907
}

Semantic roles & 50–950 ramp

primary

#310A10

secondary

#296E64

accent

#E9CF3F

background

#F6F4F4

surface

#ECE7E7

border

#C7C3C3

text

#070101

muted

#7A7777

Preview Lab

Preview with #310A10

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

Preview Lab → · Contrast checker → · Palette generator →