#3F0709#3F0709

#3F0709 is a very dark, moderate red. Relative luminance 0.012; OKLCH L 24.1% C 0.085 H 24.6°. Best body text is #FFFFFF at 16.86:1 contrast (WCAG AA passes).

Color values

HEX#3F0709
RGBrgb(63, 7, 9)
HSLhsl(358, 80%, 14%)
HSVhsv(358, 89%, 25%)
CMYKcmyk(0%, 88.9%, 85.7%, 75.3%)
CIE-LABlab(10.77, 26.58, 13.12)
CIE-LCHlch(10.77, 29.64, 26.26°)
OKLaboklab(24.1% 0.0771 0.0353)
OKLCHoklch(24.1% 0.085 24.6)
XYZxyz(2.1754, 1.2288, 0.3810)
Luminance0.0123 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3F0709 #073F3D
analogous
#3F0725 #3F0709 #3F2107
triadic
#3F0709 #093F07 #07093F
tetradic
#3F0709 #253F07 #073F3D #21073F
square
#3F0709 #253F07 #073F3D #21073F
split-complementary
#3F0709 #073F21 #07253F
monochromatic
#1C0304 #1C0304 #3F0709 #760D11 #AD1319

Accessibility & contrast

On white

16.86
#3F0709 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.25
#3F0709 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F0709
16.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3F0709#FFFFFF#000000##FFFFFF
##3F07091.0016.861.2516.86
#FFFFFF16.861.0021.001.00
#0000001.2521.001.0021.00
##FFFFFF16.861.0021.001.00

Color blindness preview

Protanopia (red-blind)
#181508
Deuteranopia (green-blind)
#262107
Tritanopia (blue-blind)
#460008
Achromatopsia (no color)
#1D1D1D

Design tokens & code

CSS
--color: #3f0709;
/* rgb */ color: rgb(63, 7, 9);
/* oklch */ color: oklch(24.1% 0.085 24.6);
Tailwind
colors: {
  custom: {
    50: '#794d4a',
    500: '#3f0709',
    950: '#000000',
  },
}
SCSS
$custom: #3f0709;
$custom-light: #794d4a;
$custom-dark: #000000;
JSON
{
  "hex": "#3f0709",
  "rgb": {
    "r": 63,
    "g": 7,
    "b": 9
  },
  "hsl": {
    "h": 357.857,
    "s": 80,
    "l": 13.725
  },
  "oklch": {
    "l": 0.24105,
    "c": 0.08478,
    "h": 24.6
  },
  "luminance": 0.01228
}

Semantic roles & 50–950 ramp

primary
#3F0709
secondary
#247E7B
accent
#F6EF31
background
#F7F4F4
surface
#EEE7E7
border
#C9C3C3
text
#0A0101
muted
#7C7777

Preview Lab

Preview with #3F0709

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

Preview Lab → · Contrast checker → · Palette generator →

#3F0709 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva