#3F0810#3F0810

#3F0810 is a very dark, moderate red. Relative luminance 0.013; OKLCH L 24.4% C 0.083 H 18.3°. Best body text is #FFFFFF at 16.75:1 contrast (WCAG AA passes).

Color values

HEX	#3F0810
RGB	rgb(63, 8, 16)
HSL	hsl(351, 77%, 14%)
HSV	hsv(351, 87%, 25%)
CMYK	cmyk(0%, 87.3%, 74.6%, 75.3%)
CIE-LAB	lab(11.05, 26.55, 10.22)
CIE-LCH	lch(11.05, 28.45, 21.06°)
OKLab	oklab(24.36% 0.0789 0.0261)
OKLCH	oklch(24.36% 0.083 18.3)
XYZ	xyz(2.2305, 1.2682, 0.6174)
Luminance	0.0127 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F0810 #083F37

analogous

#3F082C #3F0810 #3F1C08

triadic

#3F0810 #103F08 #08103F

tetradic

#3F0810 #2C3F08 #083F37 #1C083F

square

#3F0810 #2C3F08 #083F37 #1C083F

split-complementary

#3F0810 #083F1C #082C3F

monochromatic

#1B0307 #1B0307 #3F0810 #750F1E #AC162C

Accessibility & contrast

On white

16.75

#3F0810 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#3F0810 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F0810

16.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F0810	#FFFFFF	#000000	##FFFFFF
##3F0810	1.00	16.75	1.25	16.75
#FFFFFF	16.75	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#181610

Deuteranopia (green-blind)

#26220E

Tritanopia (blue-blind)

#46000B

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #3f0810;
/* rgb */ color: rgb(63, 8, 16);
/* oklch */ color: oklch(24.4% 0.083 18.3);

Tailwind

colors: {
  custom: {
    50: '#794d4e',
    500: '#3f0810',
    950: '#000000',
  },
}

SCSS

$custom: #3f0810;
$custom-light: #794d4e;
$custom-dark: #000000;

JSON

{
  "hex": "#3f0810",
  "rgb": {
    "r": 63,
    "g": 8,
    "b": 16
  },
  "hsl": {
    "h": 351.273,
    "s": 77.465,
    "l": 13.922
  },
  "oklch": {
    "l": 0.24356,
    "c": 0.08307,
    "h": 18.3
  },
  "luminance": 0.01268
}

Semantic roles & 50–950 ramp

primary

#3F0810

secondary

#257E71

accent

#F4D834

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0101

muted

#7C7777

Preview Lab

Preview with #3F0810

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

Preview Lab → · Contrast checker → · Palette generator →