#310507#310507

#310507 is a very dark, moderate red. Relative luminance 0.008; OKLCH L 20.7% C 0.071 H 23.2°. Best body text is #FFFFFF at 18.18:1 contrast (WCAG AA passes).

Color values

HEX	#310507
RGB	rgb(49, 5, 7)
HSL	hsl(357, 81%, 11%)
HSV	hsv(357, 90%, 19%)
CMYK	cmyk(0%, 89.8%, 85.7%, 80.8%)
CIE-LAB	lab(7.02, 22.15, 8.11)
CIE-LCH	lch(7.02, 23.58, 20.10°)
OKLab	oklab(20.67% 0.0652 0.0279)
OKLCH	oklch(20.67% 0.071 23.2)
XYZ	xyz(1.3594, 0.7771, 0.2794)
Luminance	0.0078 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310507 #05312F

analogous

#31051D #310507 #311905

triadic

#310507 #073105 #050731

tetradic

#310507 #1D3105 #05312F #190531

square

#310507 #1D3105 #05312F #190531

split-complementary

#310507 #053119 #051D31

monochromatic

#1C0304 #1C0304 #310507 #690B0F #A01017

Accessibility & contrast

On white

18.18

#310507 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#310507 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310507

18.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310507	#FFFFFF	#000000	##FFFFFF
##310507	1.00	18.18	1.16	18.18
#FFFFFF	18.18	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#120F07

Deuteranopia (green-blind)

#1D1906

Tritanopia (blue-blind)

#370006

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #310507;
/* rgb */ color: rgb(49, 5, 7);
/* oklch */ color: oklch(20.7% 0.071 23.2);

Tailwind

colors: {
  custom: {
    50: '#6d494a',
    500: '#310507',
    950: '#000000',
  },
}

SCSS

$custom: #310507;
$custom-light: #6d494a;
$custom-dark: #000000;

JSON

{
  "hex": "#310507",
  "rgb": {
    "r": 49,
    "g": 5,
    "b": 7
  },
  "hsl": {
    "h": 357.273,
    "s": 81.481,
    "l": 10.588
  },
  "oklch": {
    "l": 0.20673,
    "c": 0.07094,
    "h": 23.2
  },
  "luminance": 0.00777
}

Semantic roles & 50–950 ramp

primary

#310507

secondary

#1F726F

accent

#F8EF30

background

#F6F4F4

surface

#ECE7E7

border

#C7C3C3

text

#070101

muted

#7A7777

Preview Lab

Preview with #310507

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

Preview Lab → · Contrast checker → · Palette generator →