#370509#370509

#370509 is a very dark, moderate red. Relative luminance 0.009; OKLCH L 22.1% C 0.078 H 21.9°. Best body text is #FFFFFF at 17.68:1 contrast (WCAG AA passes).

Color values

HEX#370509
RGBrgb(55, 5, 9)
HSLhsl(355, 83%, 12%)
HSVhsv(355, 91%, 22%)
CMYKcmyk(0%, 90.9%, 83.6%, 78.4%)
CIE-LABlab(8.49, 24.67, 9.61)
CIE-LCHlch(8.49, 26.48, 21.27°)
OKLaboklab(22.07% 0.0723 0.029)
OKLCHoklch(22.07% 0.078 21.9)
XYZxyz(1.6793, 0.9408, 0.3516)
Luminance0.0094 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#370509 #053733
analogous
#370522 #370509 #371A05
triadic
#370509 #093705 #050937
tetradic
#370509 #223705 #053733 #1A0537
square
#370509 #223705 #053733 #1A0537
split-complementary
#370509 #05371A #052237
monochromatic
#1C0305 #1C0305 #370509 #6F0A12 #A70F1B

Accessibility & contrast

On white

17.68
#370509 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.19
#370509 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370509
17.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##370509#FFFFFF#000000##FFFFFF
##3705091.0017.681.1917.68
#FFFFFF17.681.0021.001.00
#0000001.1921.001.0021.00
##FFFFFF17.681.0021.001.00

Color blindness preview

Protanopia (red-blind)
#141209
Deuteranopia (green-blind)
#201C07
Tritanopia (blue-blind)
#3D0007
Achromatopsia (no color)
#181818

Design tokens & code

CSS
--color: #370509;
/* rgb */ color: rgb(55, 5, 9);
/* oklch */ color: oklch(22.1% 0.078 21.9);
Tailwind
colors: {
  custom: {
    50: '#724a4a',
    500: '#370509',
    950: '#000000',
  },
}
SCSS
$custom: #370509;
$custom-light: #724a4a;
$custom-dark: #000000;
JSON
{
  "hex": "#370509",
  "rgb": {
    "r": 55,
    "g": 5,
    "b": 9
  },
  "hsl": {
    "h": 355.2,
    "s": 83.333,
    "l": 11.765
  },
  "oklch": {
    "l": 0.2207,
    "c": 0.07793,
    "h": 21.9
  },
  "luminance": 0.0094
}

Semantic roles & 50–950 ramp

primary
#370509
secondary
#207871
accent
#FAE92E
background
#F7F4F4
surface
#EDE7E7
border
#C8C3C3
text
#080101
muted
#7B7777

Preview Lab

Preview with #370509

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

Preview Lab → · Contrast checker → · Palette generator →

#370509 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva