#370511#370511

#370511 is a very dark, moderate red. Relative luminance 0.010; OKLCH L 22.3% C 0.078 H 12.3°. Best body text is #FFFFFF at 17.61:1 contrast (WCAG AA passes).

Color values

HEX	#370511
RGB	rgb(55, 5, 17)
HSL	hsl(346, 83%, 12%)
HSV	hsv(346, 91%, 22%)
CMYK	cmyk(0%, 90.9%, 69.1%, 78.4%)
CIE-LAB	lab(8.67, 25.23, 6.01)
CIE-LCH	lch(8.67, 25.94, 13.39°)
OKLab	oklab(22.26% 0.0762 0.0167)
OKLCH	oklch(22.26% 0.078 12.3)
XYZ	xyz(1.7312, 0.9615, 0.6246)
Luminance	0.0096 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370511 #05372B

analogous

#37052A #370511 #371205

triadic

#370511 #113705 #051137

tetradic

#370511 #2A3705 #05372B #120537

square

#370511 #2A3705 #05372B #120537

split-complementary

#370511 #053712 #052A37

monochromatic

#1C0309 #1C0309 #370511 #6F0A22 #A70F34

Accessibility & contrast

On white

17.61

#370511 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#370511 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370511

17.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370511	#FFFFFF	#000000	##FFFFFF
##370511	1.00	17.61	1.19	17.61
#FFFFFF	17.61	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#121211

Deuteranopia (green-blind)

#1F1D10

Tritanopia (blue-blind)

#3D000A

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #370511;
/* rgb */ color: rgb(55, 5, 17);
/* oklch */ color: oklch(22.3% 0.078 12.3);

Tailwind

colors: {
  custom: {
    50: '#724a4f',
    500: '#370511',
    950: '#000000',
  },
}

SCSS

$custom: #370511;
$custom-light: #724a4f;
$custom-dark: #000000;

JSON

{
  "hex": "#370511",
  "rgb": {
    "r": 55,
    "g": 5,
    "b": 17
  },
  "hsl": {
    "h": 345.6,
    "s": 83.333,
    "l": 11.765
  },
  "oklch": {
    "l": 0.22259,
    "c": 0.07796,
    "h": 12.3
  },
  "luminance": 0.00961
}

Semantic roles & 50–950 ramp

primary

#370511

secondary

#207863

accent

#FAC92E

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#080101

muted

#7B7777

Preview Lab

Preview with #370511

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

Preview Lab → · Contrast checker → · Palette generator →