#3F080B#3F080B

#3F080B is a very dark, moderate red. Relative luminance 0.013; OKLCH L 24.3% C 0.083 H 23.4°. Best body text is #FFFFFF at 16.79:1 contrast (WCAG AA passes).

Color values

HEX	#3F080B
RGB	rgb(63, 8, 11)
HSL	hsl(357, 77%, 14%)
HSV	hsv(357, 87%, 25%)
CMYK	cmyk(0%, 87.3%, 82.5%, 75.3%)
CIE-LAB	lab(10.96, 26.25, 12.55)
CIE-LCH	lch(10.96, 29.09, 25.56°)
OKLab	oklab(24.26% 0.0766 0.0331)
OKLCH	oklch(24.26% 0.083 23.4)
XYZ	xyz(2.1974, 1.2549, 0.4431)
Luminance	0.0126 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F080B #083F3C

analogous

#3F0827 #3F080B #3F2108

triadic

#3F080B #0B3F08 #080B3F

tetradic

#3F080B #273F08 #083F3C #21083F

square

#3F080B #273F08 #083F3C #21083F

split-complementary

#3F080B #083F21 #08273F

monochromatic

#1B0305 #1B0305 #3F080B #750F14 #AC161E

Accessibility & contrast

On white

16.79

#3F080B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#3F080B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F080B

16.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F080B	#FFFFFF	#000000	##FFFFFF
##3F080B	1.00	16.79	1.25	16.79
#FFFFFF	16.79	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#19160B

Deuteranopia (green-blind)

#262209

Tritanopia (blue-blind)

#46000A

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #3f080b;
/* rgb */ color: rgb(63, 8, 11);
/* oklch */ color: oklch(24.3% 0.083 23.4);

Tailwind

colors: {
  custom: {
    50: '#794d4b',
    500: '#3f080b',
    950: '#000000',
  },
}

SCSS

$custom: #3f080b;
$custom-light: #794d4b;
$custom-dark: #000000;

JSON

{
  "hex": "#3f080b",
  "rgb": {
    "r": 63,
    "g": 8,
    "b": 11
  },
  "hsl": {
    "h": 356.727,
    "s": 77.465,
    "l": 13.922
  },
  "oklch": {
    "l": 0.24256,
    "c": 0.08343,
    "h": 23.4
  },
  "luminance": 0.01255
}

Semantic roles & 50–950 ramp

primary

#3F080B

secondary

#257E79

accent

#F4EA34

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0101

muted

#7C7777

Preview Lab

Preview with #3F080B

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

Preview Lab → · Contrast checker → · Palette generator →