#3F050C#3F050C

#3F050C is a very dark, moderate red. Relative luminance 0.012; OKLCH L 23.9% C 0.087 H 20.6°. Best body text is #FFFFFF at 16.96:1 contrast (WCAG AA passes).

Color values

HEX	#3F050C
RGB	rgb(63, 5, 12)
HSL	hsl(353, 85%, 13%)
HSV	hsv(353, 92%, 25%)
CMYK	cmyk(0%, 92.1%, 81%, 75.3%)
CIE-LAB	lab(10.50, 27.64, 11.47)
CIE-LCH	lch(10.50, 29.92, 22.54°)
OKLab	oklab(23.92% 0.0813 0.0306)
OKLCH	oklch(23.92% 0.087 20.6)
XYZ	xyz(2.1708, 1.1922, 0.4636)
Luminance	0.0119 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F050C #053F38

analogous

#3F0529 #3F050C #3F1B05

triadic

#3F050C #0C3F05 #050C3F

tetradic

#3F050C #293F05 #053F38 #1B053F

square

#3F050C #293F05 #053F38 #1B053F

split-complementary

#3F050C #053F1B #05293F

monochromatic

#1C0205 #1C0205 #3F050C #780917 #B00E22

Accessibility & contrast

On white

16.96

#3F050C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#3F050C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F050C

16.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F050C	#FFFFFF	#000000	##FFFFFF
##3F050C	1.00	16.96	1.24	16.96
#FFFFFF	16.96	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#17150C

Deuteranopia (green-blind)

#25210A

Tritanopia (blue-blind)

#460008

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #3f050c;
/* rgb */ color: rgb(63, 5, 12);
/* oklch */ color: oklch(23.9% 0.087 20.6);

Tailwind

colors: {
  custom: {
    50: '#794c4c',
    500: '#3f050c',
    950: '#000000',
  },
}

SCSS

$custom: #3f050c;
$custom-light: #794c4c;
$custom-dark: #000000;

JSON

{
  "hex": "#3f050c",
  "rgb": {
    "r": 63,
    "g": 5,
    "b": 12
  },
  "hsl": {
    "h": 352.759,
    "s": 85.294,
    "l": 13.333
  },
  "oklch": {
    "l": 0.23923,
    "c": 0.08684,
    "h": 20.6
  },
  "luminance": 0.01192
}

Semantic roles & 50–950 ramp

primary

#3F050C

secondary

#208074

accent

#FCE32C

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0101

muted

#7C7777

Preview Lab

Preview with #3F050C

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

Preview Lab → · Contrast checker → · Palette generator →