#3F130A#3F130A

#3F130A is a dark, moderate red. Relative luminance 0.015; OKLCH L 25.7% C 0.071 H 33.3°. Best body text is #FFFFFF at 16.05:1 contrast (WCAG AA passes).

Color values

HEX	#3F130A
RGB	rgb(63, 19, 10)
HSL	hsl(10, 73%, 14%)
HSV	hsv(10, 84%, 25%)
CMYK	cmyk(0%, 69.8%, 84.1%, 75.3%)
CIE-LAB	lab(12.89, 20.89, 15.61)
CIE-LCH	lch(12.89, 26.08, 36.78°)
OKLab	oklab(25.7% 0.0595 0.0391)
OKLCH	oklch(25.7% 0.071 33.3)
XYZ	xyz(2.3378, 1.5447, 0.4622)
Luminance	0.0154 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F130A #0A363F

analogous

#3F0A1C #3F130A #3F2E0A

triadic

#3F130A #0A3F13 #130A3F

tetradic

#3F130A #1C3F0A #0A363F #2E0A3F

square

#3F130A #1C3F0A #0A363F #2E0A3F

split-complementary

#3F130A #0A3F2E #0A1C3F

monochromatic

#1A0804 #1A0804 #3F130A #742312 #A9331B

Accessibility & contrast

On white

16.05

#3F130A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#3F130A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F130A

16.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F130A	#FFFFFF	#000000	##FFFFFF
##3F130A	1.00	16.05	1.31	16.05
#FFFFFF	16.05	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F1B09

Deuteranopia (green-blind)

#2A2509

Tritanopia (blue-blind)

#460911

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #3f130a;
/* rgb */ color: rgb(63, 19, 10);
/* oklch */ color: oklch(25.7% 0.071 33.3);

Tailwind

colors: {
  custom: {
    50: '#78534b',
    500: '#3f130a',
    950: '#000000',
  },
}

SCSS

$custom: #3f130a;
$custom-light: #78534b;
$custom-dark: #000000;

JSON

{
  "hex": "#3f130a",
  "rgb": {
    "r": 63,
    "g": 19,
    "b": 10
  },
  "hsl": {
    "h": 10.189,
    "s": 72.603,
    "l": 14.314
  },
  "oklch": {
    "l": 0.25699,
    "c": 0.0712,
    "h": 33.3
  },
  "luminance": 0.01544
}

Semantic roles & 50–950 ramp

primary

#3F130A

secondary

#296E7C

accent

#D0EF38

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0201

muted

#7C7877

Preview Lab

Preview with #3F130A

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

Preview Lab → · Contrast checker → · Palette generator →