#370F15#370F15

#370F15 is a very dark, moderate red. Relative luminance 0.012; OKLCH L 23.7% C 0.064 H 14.4°. Best body text is #FFFFFF at 16.91:1 contrast (WCAG AA passes).

Color values

HEX	#370F15
RGB	rgb(55, 15, 21)
HSL	hsl(351, 57%, 14%)
HSV	hsv(351, 73%, 22%)
CMYK	cmyk(0%, 72.7%, 61.8%, 78.4%)
CIE-LAB	lab(10.62, 20.53, 6.24)
CIE-LCH	lch(10.62, 21.46, 16.92°)
OKLab	oklab(23.75% 0.0619 0.0159)
OKLCH	oklch(23.75% 0.064 14.4)
XYZ	xyz(1.8819, 1.2083, 0.8434)
Luminance	0.0121 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370F15 #0F3731

analogous

#370F29 #370F15 #371D0F

triadic

#370F15 #15370F #0F1537

tetradic

#370F15 #29370F #0F3731 #1D0F37

square

#370F15 #29370F #0F3731 #1D0F37

split-complementary

#370F15 #0F371D #0F2937

monochromatic

#180709 #180709 #370F15 #671C27 #97293A

Accessibility & contrast

On white

16.91

#370F15 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#370F15 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370F15

16.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370F15	#FFFFFF	#000000	##FFFFFF
##370F15	1.00	16.91	1.24	16.91
#FFFFFF	16.91	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#181815

Deuteranopia (green-blind)

#232014

Tritanopia (blue-blind)

#3D0811

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #370f15;
/* rgb */ color: rgb(55, 15, 21);
/* oklch */ color: oklch(23.7% 0.064 14.4);

Tailwind

colors: {
  custom: {
    50: '#715052',
    500: '#370f15',
    950: '#000000',
  },
}

SCSS

$custom: #370f15;
$custom-light: #715052;
$custom-dark: #000000;

JSON

{
  "hex": "#370f15",
  "rgb": {
    "r": 55,
    "g": 15,
    "b": 21
  },
  "hsl": {
    "h": 351,
    "s": 57.143,
    "l": 13.725
  },
  "oklch": {
    "l": 0.23746,
    "c": 0.06388,
    "h": 14.4
  },
  "luminance": 0.01208
}

Semantic roles & 50–950 ramp

primary

#370F15

secondary

#317168

accent

#E0C947

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#080202

muted

#7B7878

Preview Lab

Preview with #370F15

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

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