#39090B#39090B

#39090B is a very dark, moderate red. Relative luminance 0.011; OKLCH L 23.1% C 0.075 H 23.2°. Best body text is #FFFFFF at 17.24:1 contrast (WCAG AA passes).

Color values

HEX	#39090B
RGB	rgb(57, 9, 11)
HSL	hsl(358, 73%, 13%)
HSV	hsv(358, 84%, 22%)
CMYK	cmyk(0%, 84.2%, 80.7%, 77.6%)
CIE-LAB	lab(9.72, 23.54, 10.61)
CIE-LCH	lch(9.72, 25.82, 24.26°)
OKLab	oklab(23.08% 0.0689 0.0295)
OKLCH	oklch(23.08% 0.075 23.2)
XYZ	xyz(1.8456, 1.0897, 0.4297)
Luminance	0.0109 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#39090B #093937

analogous

#390923 #39090B #391F09

triadic

#39090B #0B3909 #090B39

tetradic

#39090B #233909 #093937 #1F0939

square

#39090B #233909 #093937 #1F0939

split-complementary

#39090B #09391F #092339

monochromatic

#1A0405 #1A0405 #39090B #6E1115 #A31A1F

Accessibility & contrast

On white

17.24

#39090B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#39090B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #39090B

17.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##39090B	#FFFFFF	#000000	##FFFFFF
##39090B	1.00	17.24	1.22	17.24
#FFFFFF	17.24	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#17140B

Deuteranopia (green-blind)

#231F09

Tritanopia (blue-blind)

#40000A

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #39090b;
/* rgb */ color: rgb(57, 9, 11);
/* oklch */ color: oklch(23.1% 0.075 23.2);

Tailwind

colors: {
  custom: {
    50: '#744c4b',
    500: '#39090b',
    950: '#000000',
  },
}

SCSS

$custom: #39090b;
$custom-light: #744c4b;
$custom-dark: #000000;

JSON

{
  "hex": "#39090b",
  "rgb": {
    "r": 57,
    "g": 9,
    "b": 11
  },
  "hsl": {
    "h": 357.5,
    "s": 72.727,
    "l": 12.941
  },
  "oklch": {
    "l": 0.23081,
    "c": 0.07498,
    "h": 23.2
  },
  "luminance": 0.01089
}

Semantic roles & 50–950 ramp

primary

#39090B

secondary

#277774

accent

#EFE838

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#090101

muted

#7B7777

Preview Lab

Preview with #39090B

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

Preview Lab → · Contrast checker → · Palette generator →