#3F0D03#3F0D03

#3F0D03 is a very dark, moderate red. Relative luminance 0.014; OKLCH L 24.7% C 0.080 H 34.5°. Best body text is #FFFFFF at 16.53:1 contrast (WCAG AA passes).

Color values

HEX	#3F0D03
RGB	rgb(63, 13, 3)
HSL	hsl(10, 91%, 13%)
HSV	hsv(10, 95%, 25%)
CMYK	cmyk(0%, 79.4%, 95.2%, 75.3%)
CIE-LAB	lab(11.63, 23.62, 16.76)
CIE-LCH	lch(11.63, 28.96, 35.35°)
OKLab	oklab(24.72% 0.0659 0.0454)
OKLCH	oklch(24.72% 0.08 34.5)
XYZ	xyz(2.2105, 1.3515, 0.2306)
Luminance	0.0135 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F0D03 #03353F

analogous

#3F0317 #3F0D03 #3F2B03

triadic

#3F0D03 #033F0D #0D033F

tetradic

#3F0D03 #173F03 #03353F #2B033F

square

#3F0D03 #173F03 #03353F #2B033F

split-complementary

#3F0D03 #033F2B #03173F

monochromatic

#1D0601 #1D0601 #3F0D03 #791906 #B42509

Accessibility & contrast

On white

16.53

#3F0D03 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#3F0D03 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F0D03

16.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F0D03	#FFFFFF	#000000	##FFFFFF
##3F0D03	1.00	16.53	1.27	16.53
#FFFFFF	16.53	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C1802

Deuteranopia (green-blind)

#282302

Tritanopia (blue-blind)

#46000B

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #3f0d03;
/* rgb */ color: rgb(63, 13, 3);
/* oklch */ color: oklch(24.7% 0.080 34.5);

Tailwind

colors: {
  custom: {
    50: '#794f48',
    500: '#3f0d03',
    950: '#000000',
  },
}

SCSS

$custom: #3f0d03;
$custom-light: #794f48;
$custom-dark: #000000;

JSON

{
  "hex": "#3f0d03",
  "rgb": {
    "r": 63,
    "g": 13,
    "b": 3
  },
  "hsl": {
    "h": 10,
    "s": 90.909,
    "l": 12.941
  },
  "oklch": {
    "l": 0.2472,
    "c": 0.08004,
    "h": 34.5
  },
  "luminance": 0.01351
}

Semantic roles & 50–950 ramp

primary

#3F0D03

secondary

#1D7081

accent

#DBFF29

background

#F7F4F4

surface

#EEE7E6

border

#C9C3C2

text

#0A0200

muted

#7C7877

Preview Lab

Preview with #3F0D03

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

Preview Lab → · Contrast checker → · Palette generator →