#310510#310510

#310510 is a very dark, moderate red. Relative luminance 0.008; OKLCH L 20.9% C 0.071 H 10.7°. Best body text is #FFFFFF at 18.11:1 contrast (WCAG AA passes).

Color values

HEX	#310510
RGB	rgb(49, 5, 16)
HSL	hsl(345, 81%, 11%)
HSV	hsv(345, 90%, 19%)
CMYK	cmyk(0%, 89.8%, 67.3%, 80.8%)
CIE-LAB	lab(7.22, 22.91, 4.29)
CIE-LCH	lch(7.22, 23.31, 10.61°)
OKLab	oklab(20.9% 0.0698 0.0132)
OKLCH	oklch(20.9% 0.071 10.7)
XYZ	xyz(1.4146, 0.7991, 0.5699)
Luminance	0.0080 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310510 #053126

analogous

#310526 #310510 #311005

triadic

#310510 #103105 #051031

tetradic

#310510 #263105 #053126 #100531

square

#310510 #263105 #053126 #100531

split-complementary

#310510 #053110 #052631

monochromatic

#1C0309 #1C0309 #310510 #690B22 #A01034

Accessibility & contrast

On white

18.11

#310510 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#310510 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310510

18.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310510	#FFFFFF	#000000	##FFFFFF
##310510	1.00	18.11	1.16	18.11
#FFFFFF	18.11	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#101010

Deuteranopia (green-blind)

#1C190F

Tritanopia (blue-blind)

#360009

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #310510;
/* rgb */ color: rgb(49, 5, 16);
/* oklch */ color: oklch(20.9% 0.071 10.7);

Tailwind

colors: {
  custom: {
    50: '#6d494e',
    500: '#310510',
    950: '#000000',
  },
}

SCSS

$custom: #310510;
$custom-light: #6d494e;
$custom-dark: #000000;

JSON

{
  "hex": "#310510",
  "rgb": {
    "r": 49,
    "g": 5,
    "b": 16
  },
  "hsl": {
    "h": 345,
    "s": 81.481,
    "l": 10.588
  },
  "oklch": {
    "l": 0.20902,
    "c": 0.071,
    "h": 10.7
  },
  "luminance": 0.00799
}

Semantic roles & 50–950 ramp

primary

#310510

secondary

#1F725E

accent

#F8C630

background

#F6F4F4

surface

#ECE7E7

border

#C7C3C3

text

#070101

muted

#7A7777

Preview Lab

Preview with #310510

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

Preview Lab → · Contrast checker → · Palette generator →