#3F0510#3F0510

#3F0510 is a very dark, moderate red. Relative luminance 0.012; OKLCH L 24.0% C 0.087 H 16.6°. Best body text is #FFFFFF at 16.93:1 contrast (WCAG AA passes).

Color values

HEX	#3F0510
RGB	rgb(63, 5, 16)
HSL	hsl(349, 85%, 13%)
HSV	hsv(349, 92%, 25%)
CMYK	cmyk(0%, 92.1%, 74.6%, 75.3%)
CIE-LAB	lab(10.58, 27.88, 9.57)
CIE-LCH	lch(10.58, 29.47, 18.94°)
OKLab	oklab(24.01% 0.0831 0.0248)
OKLCH	oklch(24.01% 0.087 16.6)
XYZ	xyz(2.1979, 1.2031, 0.6066)
Luminance	0.0120 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F0510 #053F34

analogous

#3F052D #3F0510 #3F1705

triadic

#3F0510 #103F05 #05103F

tetradic

#3F0510 #2D3F05 #053F34 #17053F

square

#3F0510 #2D3F05 #053F34 #17053F

split-complementary

#3F0510 #053F17 #052D3F

monochromatic

#1C0207 #1C0207 #3F0510 #78091E #B00E2D

Accessibility & contrast

On white

16.93

#3F0510 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#3F0510 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F0510

16.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F0510	#FFFFFF	#000000	##FFFFFF
##3F0510	1.00	16.93	1.24	16.93
#FFFFFF	16.93	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#161510

Deuteranopia (green-blind)

#25210E

Tritanopia (blue-blind)

#460009

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #3f0510;
/* rgb */ color: rgb(63, 5, 16);
/* oklch */ color: oklch(24.0% 0.087 16.6);

Tailwind

colors: {
  custom: {
    50: '#794c4e',
    500: '#3f0510',
    950: '#000000',
  },
}

SCSS

$custom: #3f0510;
$custom-light: #794c4e;
$custom-dark: #000000;

JSON

{
  "hex": "#3f0510",
  "rgb": {
    "r": 63,
    "g": 5,
    "b": 16
  },
  "hsl": {
    "h": 348.621,
    "s": 85.294,
    "l": 13.333
  },
  "oklch": {
    "l": 0.24008,
    "c": 0.08675,
    "h": 16.6
  },
  "luminance": 0.01203
}

Semantic roles & 50–950 ramp

primary

#3F0510

secondary

#20806E

accent

#FCD42C

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0101

muted

#7C7777

Preview Lab

Preview with #3F0510

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

Preview Lab → · Contrast checker → · Palette generator →