#370505#370505

#370505 is a very dark, moderate red. Relative luminance 0.009; OKLCH L 22.0% C 0.079 H 26.6°. Best body text is #FFFFFF at 17.70:1 contrast (WCAG AA passes).

Color values

HEX	#370505
RGB	rgb(55, 5, 5)
HSL	hsl(0, 83%, 12%)
HSV	hsv(0, 91%, 22%)
CMYK	cmyk(0%, 90.9%, 90.9%, 78.4%)
CIE-LAB	lab(8.41, 24.44, 11.12)
CIE-LCH	lch(8.41, 26.85, 24.48°)
OKLab	oklab(21.99% 0.0702 0.0352)
OKLCH	oklch(21.99% 0.079 26.6)
XYZ	xyz(1.6574, 0.9320, 0.2362)
Luminance	0.0093 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370505 #053737

analogous

#37051E #370505 #371E05

triadic

#370505 #053705 #050537

tetradic

#370505 #1E3705 #053737 #1E0537

square

#370505 #1E3705 #053737 #1E0537

split-complementary

#370505 #05371E #051E37

monochromatic

#1C0303 #1C0303 #370505 #6F0A0A #A70F0F

Accessibility & contrast

On white

17.70

#370505 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#370505 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370505

17.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370505	#FFFFFF	#000000	##FFFFFF
##370505	1.00	17.70	1.19	17.70
#FFFFFF	17.70	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#141105

Deuteranopia (green-blind)

#211C04

Tritanopia (blue-blind)

#3E0006

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #370505;
/* rgb */ color: rgb(55, 5, 5);
/* oklch */ color: oklch(22.0% 0.079 26.6);

Tailwind

colors: {
  custom: {
    50: '#724a49',
    500: '#370505',
    950: '#000000',
  },
}

SCSS

$custom: #370505;
$custom-light: #724a49;
$custom-dark: #000000;

JSON

{
  "hex": "#370505",
  "rgb": {
    "r": 55,
    "g": 5,
    "b": 5
  },
  "hsl": {
    "h": 0,
    "s": 83.333,
    "l": 11.765
  },
  "oklch": {
    "l": 0.21989,
    "c": 0.07853,
    "h": 26.6
  },
  "luminance": 0.00932
}

Semantic roles & 50–950 ramp

primary

#370505

secondary

#207878

accent

#FAFA2E

background

#F7F4F4

surface

#EDE7E6

border

#C8C3C2

text

#090100

muted

#7B7777

Preview Lab

Preview with #370505

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

Preview Lab → · Contrast checker → · Palette generator →