#3F0A10#3F0A10

#3F0A10 is a very dark, moderate red. Relative luminance 0.013; OKLCH L 24.6% C 0.081 H 19.5°. Best body text is #FFFFFF at 16.64:1 contrast (WCAG AA passes).

Color values

HEX	#3F0A10
RGB	rgb(63, 10, 16)
HSL	hsl(353, 73%, 14%)
HSV	hsv(353, 84%, 25%)
CMYK	cmyk(0%, 84.1%, 74.6%, 75.3%)
CIE-LAB	lab(11.36, 25.70, 10.64)
CIE-LCH	lch(11.36, 27.81, 22.50°)
OKLab	oklab(24.58% 0.0761 0.027)
OKLCH	oklch(24.58% 0.081 19.5)
XYZ	xyz(2.2522, 1.3116, 0.6247)
Luminance	0.0131 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F0A10 #0A3F39

analogous

#3F0A2B #3F0A10 #3F1F0A

triadic

#3F0A10 #103F0A #0A103F

tetradic

#3F0A10 #2B3F0A #0A3F39 #1F0A3F

square

#3F0A10 #2B3F0A #0A3F39 #1F0A3F

split-complementary

#3F0A10 #0A3F1F #0A2B3F

monochromatic

#1A0407 #1A0407 #3F0A10 #74121D #A91B2B

Accessibility & contrast

On white

16.64

#3F0A10 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#3F0A10 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F0A10

16.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F0A10	#FFFFFF	#000000	##FFFFFF
##3F0A10	1.00	16.64	1.26	16.64
#FFFFFF	16.64	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#191710

Deuteranopia (green-blind)

#26220E

Tritanopia (blue-blind)

#46000D

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #3f0a10;
/* rgb */ color: rgb(63, 10, 16);
/* oklch */ color: oklch(24.6% 0.081 19.5);

Tailwind

colors: {
  custom: {
    50: '#794e4e',
    500: '#3f0a10',
    950: '#000000',
  },
}

SCSS

$custom: #3f0a10;
$custom-light: #794e4e;
$custom-dark: #000000;

JSON

{
  "hex": "#3f0a10",
  "rgb": {
    "r": 63,
    "g": 10,
    "b": 16
  },
  "hsl": {
    "h": 353.208,
    "s": 72.603,
    "l": 14.314
  },
  "oklch": {
    "l": 0.24583,
    "c": 0.08078,
    "h": 19.5
  },
  "luminance": 0.01311
}

Semantic roles & 50–950 ramp

primary

#3F0A10

secondary

#297C73

accent

#EFDB38

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0201

muted

#7C7877

Preview Lab

Preview with #3F0A10

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

Preview Lab → · Contrast checker → · Palette generator →