#370F09#370F09

#370F09 is a very dark, moderate red. Relative luminance 0.012; OKLCH L 23.5% C 0.066 H 31.1°. Best body text is #FFFFFF at 17.01:1 contrast (WCAG AA passes).

Color values

HEX	#370F09
RGB	rgb(55, 15, 9)
HSL	hsl(8, 72%, 13%)
HSV	hsv(8, 84%, 22%)
CMYK	cmyk(0%, 72.7%, 83.6%, 78.4%)
CIE-LAB	lab(10.36, 19.54, 12.28)
CIE-LCH	lch(10.36, 23.08, 32.15°)
OKLab	oklab(23.47% 0.0561 0.0338)
OKLCH	oklch(23.47% 0.066 31.1)
XYZ	xyz(1.7959, 1.1738, 0.3904)
Luminance	0.0117 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370F09 #093137

analogous

#37091A #370F09 #372609

triadic

#370F09 #09370F #0F0937

tetradic

#370F09 #1A3709 #093137 #260937

square

#370F09 #1A3709 #093137 #260937

split-complementary

#370F09 #093726 #091A37

monochromatic

#1A0704 #1A0704 #370F09 #6C1D12 #A02C1A

Accessibility & contrast

On white

17.01

#370F09 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#370F09 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370F09

17.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370F09	#FFFFFF	#000000	##FFFFFF
##370F09	1.00	17.01	1.23	17.01
#FFFFFF	17.01	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A1708

Deuteranopia (green-blind)

#241F08

Tritanopia (blue-blind)

#3D060E

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #370f09;
/* rgb */ color: rgb(55, 15, 9);
/* oklch */ color: oklch(23.5% 0.066 31.1);

Tailwind

colors: {
  custom: {
    50: '#714f4a',
    500: '#370f09',
    950: '#000000',
  },
}

SCSS

$custom: #370f09;
$custom-light: #714f4a;
$custom-dark: #000000;

JSON

{
  "hex": "#370f09",
  "rgb": {
    "r": 55,
    "g": 15,
    "b": 9
  },
  "hsl": {
    "h": 7.826,
    "s": 71.875,
    "l": 12.549
  },
  "oklch": {
    "l": 0.23472,
    "c": 0.0655,
    "h": 31.1
  },
  "luminance": 0.01174
}

Semantic roles & 50–950 ramp

primary

#370F09

secondary

#276B75

accent

#D7EF39

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#080201

muted

#7B7877

Preview Lab

Preview with #370F09

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

Preview Lab → · Contrast checker → · Palette generator →