#3F050B#3F050B

#3F050B is a very dark, moderate red. Relative luminance 0.012; OKLCH L 23.9% C 0.087 H 21.5°. Best body text is #FFFFFF at 16.97:1 contrast (WCAG AA passes).

Color values

HEX#3F050B
RGBrgb(63, 5, 11)
HSLhsl(354, 85%, 13%)
HSVhsv(354, 92%, 25%)
CMYKcmyk(0%, 92.1%, 82.5%, 75.3%)
CIE-LABlab(10.48, 27.58, 11.89)
CIE-LCHlch(10.48, 30.04, 23.32°)
OKLaboklab(23.9% 0.0808 0.0319)
OKLCHoklch(23.9% 0.087 21.5)
XYZxyz(2.1648, 1.1898, 0.4322)
Luminance0.0119 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3F050B #053F39
analogous
#3F0528 #3F050B #3F1C05
triadic
#3F050B #0B3F05 #050B3F
tetradic
#3F050B #283F05 #053F39 #1C053F
square
#3F050B #283F05 #053F39 #1C053F
split-complementary
#3F050B #053F1C #05283F
monochromatic
#1C0205 #1C0205 #3F050B #780915 #B00E1F

Accessibility & contrast

On white

16.97
#3F050B on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.24
#3F050B on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F050B
16.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3F050B#FFFFFF#000000##FFFFFF
##3F050B1.0016.971.2416.97
#FFFFFF16.971.0021.001.00
#0000001.2421.001.0021.00
##FFFFFF16.971.0021.001.00

Color blindness preview

Protanopia (red-blind)
#17140B
Deuteranopia (green-blind)
#252109
Tritanopia (blue-blind)
#460008
Achromatopsia (no color)
#1C1C1C

Design tokens & code

CSS
--color: #3f050b;
/* rgb */ color: rgb(63, 5, 11);
/* oklch */ color: oklch(23.9% 0.087 21.5);
Tailwind
colors: {
  custom: {
    50: '#794c4b',
    500: '#3f050b',
    950: '#000000',
  },
}
SCSS
$custom: #3f050b;
$custom-light: #794c4b;
$custom-dark: #000000;
JSON
{
  "hex": "#3f050b",
  "rgb": {
    "r": 63,
    "g": 5,
    "b": 11
  },
  "hsl": {
    "h": 353.793,
    "s": 85.294,
    "l": 13.333
  },
  "oklch": {
    "l": 0.23904,
    "c": 0.08691,
    "h": 21.5
  },
  "luminance": 0.01189
}

Semantic roles & 50–950 ramp

primary
#3F050B
secondary
#208076
accent
#FCE62C
background
#F7F4F4
surface
#EEE7E7
border
#C9C3C3
text
#0A0101
muted
#7C7777

Preview Lab

Preview with #3F050B

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

Preview Lab → · Contrast checker → · Palette generator →

#3F050B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva