#3F0803#3F0803

#3F0803 is a very dark, moderate red. Relative luminance 0.012; OKLCH L 24.1% C 0.085 H 31.1°. Best body text is #FFFFFF at 16.84:1 contrast (WCAG AA passes).

Color values

HEX	#3F0803
RGB	rgb(63, 8, 3)
HSL	hsl(5, 91%, 13%)
HSV	hsv(5, 95%, 25%)
CMYK	cmyk(0%, 87.3%, 95.2%, 75.3%)
CIE-LAB	lab(10.83, 25.83, 15.65)
CIE-LCH	lch(10.83, 30.20, 31.20°)
OKLab	oklab(24.12% 0.0728 0.0439)
OKLCH	oklch(24.12% 0.085 31.1)
XYZ	xyz(2.1534, 1.2374, 0.2116)
Luminance	0.0124 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F0803 #033A3F

analogous

#3F031C #3F0803 #3F2603

triadic

#3F0803 #033F08 #08033F

tetradic

#3F0803 #1C3F03 #033A3F #26033F

square

#3F0803 #1C3F03 #033A3F #26033F

split-complementary

#3F0803 #033F26 #031C3F

monochromatic

#1D0401 #1D0401 #3F0803 #790F06 #B41709

Accessibility & contrast

On white

16.84

#3F0803 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#3F0803 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F0803

16.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F0803	#FFFFFF	#000000	##FFFFFF
##3F0803	1.00	16.84	1.25	16.84
#FFFFFF	16.84	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#191502

Deuteranopia (green-blind)

#272101

Tritanopia (blue-blind)

#460007

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #3f0803;
/* rgb */ color: rgb(63, 8, 3);
/* oklch */ color: oklch(24.1% 0.085 31.1);

Tailwind

colors: {
  custom: {
    50: '#794d48',
    500: '#3f0803',
    950: '#000000',
  },
}

SCSS

$custom: #3f0803;
$custom-light: #794d48;
$custom-dark: #000000;

JSON

{
  "hex": "#3f0803",
  "rgb": {
    "r": 63,
    "g": 8,
    "b": 3
  },
  "hsl": {
    "h": 5,
    "s": 90.909,
    "l": 12.941
  },
  "oklch": {
    "l": 0.24121,
    "c": 0.08496,
    "h": 31.1
  },
  "luminance": 0.01237
}

Semantic roles & 50–950 ramp

primary

#3F0803

secondary

#1D7981

accent

#EDFF29

background

#F7F4F4

surface

#EEE7E6

border

#C9C3C2

text

#0A0100

muted

#7C7777

Preview Lab

Preview with #3F0803

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

Preview Lab → · Contrast checker → · Palette generator →