#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
RGB	rgb(63, 7, 9)
HSL	hsl(358, 80%, 14%)
HSV	hsv(358, 89%, 25%)
CMYK	cmyk(0%, 88.9%, 85.7%, 75.3%)
CIE-LAB	lab(10.77, 26.58, 13.12)
CIE-LCH	lch(10.77, 29.64, 26.26°)
OKLab	oklab(24.1% 0.0771 0.0353)
OKLCH	oklch(24.1% 0.085 24.6)
XYZ	xyz(2.1754, 1.2288, 0.3810)
Luminance	0.0123 (WCAG relative)
Temperature	warm
Family	red

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
##3F0709	1.00	16.86	1.25	16.86
#FFFFFF	16.86	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.86	1.00	21.00	1.00

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 →