#3F0A05#3F0A05

#3F0A05 is a very dark, moderate red. Relative luminance 0.013; OKLCH L 24.4% C 0.082 H 30.3°. Best body text is #FFFFFF at 16.71:1 contrast (WCAG AA passes).

Color values

HEX	#3F0A05
RGB	rgb(63, 10, 5)
HSL	hsl(5, 85%, 13%)
HSV	hsv(5, 92%, 25%)
CMYK	cmyk(0%, 84.1%, 92.1%, 75.3%)
CIE-LAB	lab(11.17, 25.08, 15.31)
CIE-LCH	lch(11.17, 29.38, 31.40°)
OKLab	oklab(24.39% 0.0711 0.0416)
OKLCH	oklch(24.39% 0.082 30.3)
XYZ	xyz(2.1861, 1.2851, 0.2765)
Luminance	0.0129 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F0A05 #053A3F

analogous

#3F051D #3F0A05 #3F2705

triadic

#3F0A05 #053F0A #0A053F

tetradic

#3F0A05 #1D3F05 #053A3F #27053F

square

#3F0A05 #1D3F05 #053A3F #27053F

split-complementary

#3F0A05 #053F27 #051D3F

monochromatic

#1C0402 #1C0402 #3F0A05 #781309 #B01C0E

Accessibility & contrast

On white

16.71

#3F0A05 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#3F0A05 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F0A05

16.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F0A05	#FFFFFF	#000000	##FFFFFF
##3F0A05	1.00	16.71	1.26	16.71
#FFFFFF	16.71	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A1604

Deuteranopia (green-blind)

#272203

Tritanopia (blue-blind)

#460009

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #3f0a05;
/* rgb */ color: rgb(63, 10, 5);
/* oklch */ color: oklch(24.4% 0.082 30.3);

Tailwind

colors: {
  custom: {
    50: '#794e49',
    500: '#3f0a05',
    950: '#000000',
  },
}

SCSS

$custom: #3f0a05;
$custom-light: #794e49;
$custom-dark: #000000;

JSON

{
  "hex": "#3f0a05",
  "rgb": {
    "r": 63,
    "g": 10,
    "b": 5
  },
  "hsl": {
    "h": 5.172,
    "s": 85.294,
    "l": 13.333
  },
  "oklch": {
    "l": 0.24386,
    "c": 0.08242,
    "h": 30.3
  },
  "luminance": 0.01285
}

Semantic roles & 50–950 ramp

primary

#3F0A05

secondary

#207780

accent

#EAFC2C

background

#F7F4F4

surface

#EEE7E6

border

#C9C3C2

text

#0A0200

muted

#7C7877

Preview Lab

Preview with #3F0A05

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

Preview Lab → · Contrast checker → · Palette generator →