#370D15#370D15

#370D15 is a very dark, moderate red. Relative luminance 0.012; OKLCH L 23.4% C 0.067 H 12.6°. Best body text is #FFFFFF at 17.06:1 contrast (WCAG AA passes).

Color values

HEX	#370D15
RGB	rgb(55, 13, 21)
HSL	hsl(349, 62%, 13%)
HSV	hsv(349, 76%, 22%)
CMYK	cmyk(0%, 76.4%, 61.8%, 78.4%)
CIE-LAB	lab(10.22, 21.61, 5.68)
CIE-LCH	lch(10.22, 22.35, 14.72°)
OKLab	oklab(23.45% 0.0653 0.0146)
OKLCH	oklch(23.45% 0.067 12.6)
XYZ	xyz(1.8550, 1.1545, 0.8345)
Luminance	0.0115 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370D15 #0D372F

analogous

#370D2A #370D15 #371A0D

triadic

#370D15 #15370D #0D1537

tetradic

#370D15 #2A370D #0D372F #1A0D37

square

#370D15 #2A370D #0D372F #1A0D37

split-complementary

#370D15 #0D371A #0D2A37

monochromatic

#190609 #190609 #370D15 #681928 #9A243B

Accessibility & contrast

On white

17.06

#370D15 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#370D15 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370D15

17.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370D15	#FFFFFF	#000000	##FFFFFF
##370D15	1.00	17.06	1.23	17.06
#FFFFFF	17.06	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#171615

Deuteranopia (green-blind)

#221F14

Tritanopia (blue-blind)

#3D0610

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #370d15;
/* rgb */ color: rgb(55, 13, 21);
/* oklch */ color: oklch(23.4% 0.067 12.6);

Tailwind

colors: {
  custom: {
    50: '#714e52',
    500: '#370d15',
    950: '#000000',
  },
}

SCSS

$custom: #370d15;
$custom-light: #714e52;
$custom-dark: #000000;

JSON

{
  "hex": "#370d15",
  "rgb": {
    "r": 55,
    "g": 13,
    "b": 21
  },
  "hsl": {
    "h": 348.571,
    "s": 61.765,
    "l": 13.333
  },
  "oklch": {
    "l": 0.23446,
    "c": 0.06691,
    "h": 12.6
  },
  "luminance": 0.01154
}

Semantic roles & 50–950 ramp

primary

#370D15

secondary

#2D7265

accent

#E5C643

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#080202

muted

#7B7878

Preview Lab

Preview with #370D15

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

Preview Lab → · Contrast checker → · Palette generator →