#37050A#37050A

#37050A is a very dark, moderate red. Relative luminance 0.009; OKLCH L 22.1% C 0.078 H 20.7°. Best body text is #FFFFFF at 17.67:1 contrast (WCAG AA passes).

Color values

HEX	#37050A
RGB	rgb(55, 5, 10)
HSL	hsl(354, 83%, 12%)
HSV	hsv(354, 91%, 22%)
CMYK	cmyk(0%, 90.9%, 81.8%, 78.4%)
CIE-LAB	lab(8.51, 24.74, 9.23)
CIE-LCH	lch(8.51, 26.40, 20.45°)
OKLab	oklab(22.09% 0.0728 0.0276)
OKLCH	oklch(22.09% 0.078 20.7)
XYZ	xyz(1.6848, 0.9429, 0.3804)
Luminance	0.0094 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37050A #053732

analogous

#370523 #37050A #371905

triadic

#37050A #0A3705 #050A37

tetradic

#37050A #233705 #053732 #190537

square

#37050A #233705 #053732 #190537

split-complementary

#37050A #053719 #052337

monochromatic

#1C0305 #1C0305 #37050A #6F0A14 #A70F1E

Accessibility & contrast

On white

17.67

#37050A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#37050A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37050A

17.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37050A	#FFFFFF	#000000	##FFFFFF
##37050A	1.00	17.67	1.19	17.67
#FFFFFF	17.67	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#14120A

Deuteranopia (green-blind)

#201C08

Tritanopia (blue-blind)

#3D0007

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #37050a;
/* rgb */ color: rgb(55, 5, 10);
/* oklch */ color: oklch(22.1% 0.078 20.7);

Tailwind

colors: {
  custom: {
    50: '#724a4b',
    500: '#37050a',
    950: '#000000',
  },
}

SCSS

$custom: #37050a;
$custom-light: #724a4b;
$custom-dark: #000000;

JSON

{
  "hex": "#37050a",
  "rgb": {
    "r": 55,
    "g": 5,
    "b": 10
  },
  "hsl": {
    "h": 354,
    "s": 83.333,
    "l": 11.765
  },
  "oklch": {
    "l": 0.2209,
    "c": 0.07785,
    "h": 20.7
  },
  "luminance": 0.00943
}

Semantic roles & 50–950 ramp

primary

#37050A

secondary

#20786F

accent

#FAE52E

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#080101

muted

#7B7777

Preview Lab

Preview with #37050A

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

Preview Lab → · Contrast checker → · Palette generator →