#3F0A03#3F0A03

#3F0A03 is a very dark, moderate red. Relative luminance 0.013; OKLCH L 24.4% C 0.083 H 32.4°. Best body text is #FFFFFF at 16.72:1 contrast (WCAG AA passes).

Color values

HEX	#3F0A03
RGB	rgb(63, 10, 3)
HSL	hsl(7, 91%, 13%)
HSV	hsv(7, 95%, 25%)
CMYK	cmyk(0%, 84.1%, 95.2%, 75.3%)
CIE-LAB	lab(11.14, 24.97, 16.08)
CIE-LCH	lch(11.14, 29.70, 32.78°)
OKLab	oklab(24.35% 0.0701 0.0445)
OKLCH	oklch(24.35% 0.083 32.4)
XYZ	xyz(2.1751, 1.2808, 0.2188)
Luminance	0.0128 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F0A03 #03383F

analogous

#3F031A #3F0A03 #3F2803

triadic

#3F0A03 #033F0A #0A033F

tetradic

#3F0A03 #1A3F03 #03383F #28033F

square

#3F0A03 #1A3F03 #03383F #28033F

split-complementary

#3F0A03 #033F28 #031A3F

monochromatic

#1D0501 #1D0501 #3F0A03 #791306 #B41D09

Accessibility & contrast

On white

16.72

#3F0A03 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#3F0A03 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F0A03

16.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F0A03	#FFFFFF	#000000	##FFFFFF
##3F0A03	1.00	16.72	1.26	16.72
#FFFFFF	16.72	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A1602

Deuteranopia (green-blind)

#272201

Tritanopia (blue-blind)

#460009

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #3f0a03;
/* rgb */ color: rgb(63, 10, 3);
/* oklch */ color: oklch(24.4% 0.083 32.4);

Tailwind

colors: {
  custom: {
    50: '#794e48',
    500: '#3f0a03',
    950: '#000000',
  },
}

SCSS

$custom: #3f0a03;
$custom-light: #794e48;
$custom-dark: #000000;

JSON

{
  "hex": "#3f0a03",
  "rgb": {
    "r": 63,
    "g": 10,
    "b": 3
  },
  "hsl": {
    "h": 7,
    "s": 90.909,
    "l": 12.941
  },
  "oklch": {
    "l": 0.24353,
    "c": 0.083,
    "h": 32.4
  },
  "luminance": 0.0128
}

Semantic roles & 50–950 ramp

primary

#3F0A03

secondary

#1D7581

accent

#E6FF29

background

#F7F4F4

surface

#EEE7E6

border

#C9C3C2

text

#0A0200

muted

#7C7877

Preview Lab

Preview with #3F0A03

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

Preview Lab → · Contrast checker → · Palette generator →