#3F0511#3F0511

#3F0511 is a very dark, moderate red. Relative luminance 0.012; OKLCH L 24.0% C 0.087 H 15.5°. Best body text is #FFFFFF at 16.92:1 contrast (WCAG AA passes).

Color values

HEX	#3F0511
RGB	rgb(63, 5, 17)
HSL	hsl(348, 85%, 13%)
HSV	hsv(348, 92%, 25%)
CMYK	cmyk(0%, 92.1%, 73%, 75.3%)
CIE-LAB	lab(10.60, 27.95, 9.03)
CIE-LCH	lch(10.60, 29.37, 17.90°)
OKLab	oklab(24.03% 0.0836 0.0232)
OKLCH	oklch(24.03% 0.087 15.5)
XYZ	xyz(2.2056, 1.2061, 0.6469)
Luminance	0.0121 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F0511 #053F33

analogous

#3F052E #3F0511 #3F1605

triadic

#3F0511 #113F05 #05113F

tetradic

#3F0511 #2E3F05 #053F33 #16053F

square

#3F0511 #2E3F05 #053F33 #16053F

split-complementary

#3F0511 #053F16 #052E3F

monochromatic

#1C0208 #1C0208 #3F0511 #780920 #B00E30

Accessibility & contrast

On white

16.92

#3F0511 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#3F0511 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F0511

16.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F0511	#FFFFFF	#000000	##FFFFFF
##3F0511	1.00	16.92	1.24	16.92
#FFFFFF	16.92	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#161511

Deuteranopia (green-blind)

#25210F

Tritanopia (blue-blind)

#46000A

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #3f0511;
/* rgb */ color: rgb(63, 5, 17);
/* oklch */ color: oklch(24.0% 0.087 15.5);

Tailwind

colors: {
  custom: {
    50: '#794c4f',
    500: '#3f0511',
    950: '#000000',
  },
}

SCSS

$custom: #3f0511;
$custom-light: #794c4f;
$custom-dark: #000000;

JSON

{
  "hex": "#3f0511",
  "rgb": {
    "r": 63,
    "g": 5,
    "b": 17
  },
  "hsl": {
    "h": 347.586,
    "s": 85.294,
    "l": 13.333
  },
  "oklch": {
    "l": 0.24031,
    "c": 0.08677,
    "h": 15.5
  },
  "luminance": 0.01206
}

Semantic roles & 50–950 ramp

primary

#3F0511

secondary

#20806C

accent

#FCD12C

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0101

muted

#7C7777

Preview Lab

Preview with #3F0511

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

Preview Lab → · Contrast checker → · Palette generator →