#370F0C#370F0C

#370F0C is a very dark, moderate red. Relative luminance 0.012; OKLCH L 23.5% C 0.065 H 27.4°. Best body text is #FFFFFF at 16.99:1 contrast (WCAG AA passes).

Color values

HEX	#370F0C
RGB	rgb(55, 15, 12)
HSL	hsl(4, 64%, 13%)
HSV	hsv(4, 78%, 22%)
CMYK	cmyk(0%, 72.7%, 78.2%, 78.4%)
CIE-LAB	lab(10.41, 19.74, 11.09)
CIE-LCH	lch(10.41, 22.64, 29.32°)
OKLab	oklab(23.53% 0.0575 0.0298)
OKLCH	oklch(23.53% 0.065 27.4)
XYZ	xyz(1.8129, 1.1807, 0.4802)
Luminance	0.0118 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370F0C #0C3437

analogous

#370C1E #370F0C #37240C

triadic

#370F0C #0C370F #0F0C37

tetradic

#370F0C #1E370C #0C3437 #240C37

square

#370F0C #1E370C #0C3437 #240C37

split-complementary

#370F0C #0C3724 #0C1E37

monochromatic

#190705 #190705 #370F0C #691D17 #9B2A22

Accessibility & contrast

On white

16.99

#370F0C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#370F0C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370F0C

16.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370F0C	#FFFFFF	#000000	##FFFFFF
##370F0C	1.00	16.99	1.24	16.99
#FFFFFF	16.99	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A170B

Deuteranopia (green-blind)

#24200B

Tritanopia (blue-blind)

#3D070F

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #370f0c;
/* rgb */ color: rgb(55, 15, 12);
/* oklch */ color: oklch(23.5% 0.065 27.4);

Tailwind

colors: {
  custom: {
    50: '#714f4c',
    500: '#370f0c',
    950: '#000000',
  },
}

SCSS

$custom: #370f0c;
$custom-light: #714f4c;
$custom-dark: #000000;

JSON

{
  "hex": "#370f0c",
  "rgb": {
    "r": 55,
    "g": 15,
    "b": 12
  },
  "hsl": {
    "h": 4.186,
    "s": 64.179,
    "l": 13.137
  },
  "oklch": {
    "l": 0.23526,
    "c": 0.06475,
    "h": 27.4
  },
  "luminance": 0.0118
}

Semantic roles & 50–950 ramp

primary

#370F0C

secondary

#2C6E73

accent

#DCE741

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#080201

muted

#7B7877

Preview Lab

Preview with #370F0C

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

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