#3F150A#3F150A

#3F150A is a dark, moderate red. Relative luminance 0.016; OKLCH L 26.0% C 0.069 H 35.7°. Best body text is #FFFFFF at 15.87:1 contrast (WCAG AA passes).

Color values

HEX	#3F150A
RGB	rgb(63, 21, 10)
HSL	hsl(12, 73%, 14%)
HSV	hsv(12, 84%, 25%)
CMYK	cmyk(0%, 66.7%, 84.1%, 75.3%)
CIE-LAB	lab(13.32, 19.75, 16.19)
CIE-LCH	lch(13.32, 25.54, 39.35°)
OKLab	oklab(26.03% 0.056 0.0402)
OKLCH	oklch(26.03% 0.069 35.7)
XYZ	xyz(2.3731, 1.6153, 0.4739)
Luminance	0.0162 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F150A #0A343F

analogous

#3F0A1A #3F150A #3F300A

triadic

#3F150A #0A3F15 #150A3F

tetradic

#3F150A #1A3F0A #0A343F #300A3F

square

#3F150A #1A3F0A #0A343F #300A3F

split-complementary

#3F150A #0A3F30 #0A1A3F

monochromatic

#1A0904 #1A0904 #3F150A #742712 #A9381B

Accessibility & contrast

On white

15.87

#3F150A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#3F150A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F150A

15.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F150A	#FFFFFF	#000000	##FFFFFF
##3F150A	1.00	15.87	1.32	15.87
#FFFFFF	15.87	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#211C09

Deuteranopia (green-blind)

#2B2609

Tritanopia (blue-blind)

#460C13

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #3f150a;
/* rgb */ color: rgb(63, 21, 10);
/* oklch */ color: oklch(26.0% 0.069 35.7);

Tailwind

colors: {
  custom: {
    50: '#78544b',
    500: '#3f150a',
    950: '#000000',
  },
}

SCSS

$custom: #3f150a;
$custom-light: #78544b;
$custom-dark: #000000;

JSON

{
  "hex": "#3f150a",
  "rgb": {
    "r": 63,
    "g": 21,
    "b": 10
  },
  "hsl": {
    "h": 12.453,
    "s": 72.603,
    "l": 14.314
  },
  "oklch": {
    "l": 0.26026,
    "c": 0.06887,
    "h": 35.7
  },
  "luminance": 0.01615
}

Semantic roles & 50–950 ramp

primary

#3F150A

secondary

#296B7C

accent

#C9EF38

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#090301

muted

#7B7877

Preview Lab

Preview with #3F150A

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

Preview Lab → · Contrast checker → · Palette generator →