#39030B#39030B

#39030B is a very dark, moderate red. Relative luminance 0.010; OKLCH L 22.3% C 0.083 H 18.7°. Best body text is #FFFFFF at 17.62:1 contrast (WCAG AA passes).

Color values

HEX	#39030B
RGB	rgb(57, 3, 11)
HSL	hsl(351, 90%, 12%)
HSV	hsv(351, 95%, 22%)
CMYK	cmyk(0%, 94.7%, 80.7%, 77.6%)
CIE-LAB	lab(8.65, 26.55, 9.08)
CIE-LCH	lch(8.65, 28.06, 18.87°)
OKLab	oklab(22.29% 0.0785 0.0266)
OKLCH	oklch(22.29% 0.083 18.7)
XYZ	xyz(1.7805, 0.9594, 0.4080)
Luminance	0.0096 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#39030B #033931

analogous

#390326 #39030B #391603

triadic

#39030B #0B3903 #030B39

tetradic

#39030B #263903 #033931 #160339

square

#39030B #263903 #033931 #160339

split-complementary

#39030B #033916 #032639

monochromatic

#1D0206 #1D0206 #39030B #730616 #AD0921

Accessibility & contrast

On white

17.62

#39030B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#39030B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #39030B

17.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##39030B	#FFFFFF	#000000	##FFFFFF
##39030B	1.00	17.62	1.19	17.62
#FFFFFF	17.62	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#13110B

Deuteranopia (green-blind)

#211D09

Tritanopia (blue-blind)

#400006

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #39030b;
/* rgb */ color: rgb(57, 3, 11);
/* oklch */ color: oklch(22.3% 0.083 18.7);

Tailwind

colors: {
  custom: {
    50: '#74494b',
    500: '#39030b',
    950: '#000000',
  },
}

SCSS

$custom: #39030b;
$custom-light: #74494b;
$custom-dark: #000000;

JSON

{
  "hex": "#39030b",
  "rgb": {
    "r": 57,
    "g": 3,
    "b": 11
  },
  "hsl": {
    "h": 351.111,
    "s": 90,
    "l": 11.765
  },
  "oklch": {
    "l": 0.22289,
    "c": 0.08293,
    "h": 18.7
  },
  "luminance": 0.00959
}

Semantic roles & 50–950 ramp

primary

#39030B

secondary

#1C7C6E

accent

#FFDF29

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#090101

muted

#7B7777

Preview Lab

Preview with #39030B

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

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