#3F090E#3F090E

#3F090E is a very dark, moderate red. Relative luminance 0.013; OKLCH L 24.4% C 0.082 H 21.0°. Best body text is #FFFFFF at 16.71:1 contrast (WCAG AA passes).

Color values

HEX	#3F090E
RGB	rgb(63, 9, 14)
HSL	hsl(354, 75%, 14%)
HSV	hsv(354, 86%, 25%)
CMYK	cmyk(0%, 85.7%, 77.8%, 75.3%)
CIE-LAB	lab(11.16, 25.99, 11.44)
CIE-LCH	lch(11.16, 28.39, 23.76°)
OKLab	oklab(24.43% 0.0766 0.0295)
OKLCH	oklch(24.43% 0.082 21)
XYZ	xyz(2.2271, 1.2842, 0.5460)
Luminance	0.0128 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F090E #093F3A

analogous

#3F0929 #3F090E #3F1F09

triadic

#3F090E #0E3F09 #090E3F

tetradic

#3F090E #293F09 #093F3A #1F093F

square

#3F090E #293F09 #093F3A #1F093F

split-complementary

#3F090E #093F1F #09293F

monochromatic

#1B0406 #1B0406 #3F090E #75111A #AA1826

Accessibility & contrast

On white

16.71

#3F090E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#3F090E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F090E

16.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F090E	#FFFFFF	#000000	##FFFFFF
##3F090E	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)

#19160E

Deuteranopia (green-blind)

#26220C

Tritanopia (blue-blind)

#46000B

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #3f090e;
/* rgb */ color: rgb(63, 9, 14);
/* oklch */ color: oklch(24.4% 0.082 21.0);

Tailwind

colors: {
  custom: {
    50: '#794e4d',
    500: '#3f090e',
    950: '#000000',
  },
}

SCSS

$custom: #3f090e;
$custom-light: #794e4d;
$custom-dark: #000000;

JSON

{
  "hex": "#3f090e",
  "rgb": {
    "r": 63,
    "g": 9,
    "b": 14
  },
  "hsl": {
    "h": 354.444,
    "s": 75,
    "l": 14.118
  },
  "oklch": {
    "l": 0.24427,
    "c": 0.08202,
    "h": 21
  },
  "luminance": 0.01284
}

Semantic roles & 50–950 ramp

primary

#3F090E

secondary

#277D75

accent

#F2E036

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0201

muted

#7C7877

Preview Lab

Preview with #3F090E

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

Preview Lab → · Contrast checker → · Palette generator →