#3F050F#3F050F

#3F050F is a very dark, moderate red. Relative luminance 0.012; OKLCH L 24.0% C 0.087 H 17.6°. Best body text is #FFFFFF at 16.94:1 contrast (WCAG AA passes).

Color values

HEX	#3F050F
RGB	rgb(63, 5, 15)
HSL	hsl(350, 85%, 13%)
HSV	hsv(350, 92%, 25%)
CMYK	cmyk(0%, 92.1%, 76.2%, 75.3%)
CIE-LAB	lab(10.56, 27.82, 10.08)
CIE-LCH	lch(10.56, 29.59, 19.92°)
OKLab	oklab(23.99% 0.0827 0.0263)
OKLCH	oklch(23.99% 0.087 17.6)
XYZ	xyz(2.1906, 1.2001, 0.5681)
Luminance	0.0120 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F050F #053F35

analogous

#3F052C #3F050F #3F1805

triadic

#3F050F #0F3F05 #050F3F

tetradic

#3F050F #2C3F05 #053F35 #18053F

square

#3F050F #2C3F05 #053F35 #18053F

split-complementary

#3F050F #053F18 #052C3F

monochromatic

#1C0207 #1C0207 #3F050F #78091C #B00E2A

Accessibility & contrast

On white

16.94

#3F050F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#3F050F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F050F

16.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F050F	#FFFFFF	#000000	##FFFFFF
##3F050F	1.00	16.94	1.24	16.94
#FFFFFF	16.94	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#16150F

Deuteranopia (green-blind)

#25210D

Tritanopia (blue-blind)

#460009

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #3f050f;
/* rgb */ color: rgb(63, 5, 15);
/* oklch */ color: oklch(24.0% 0.087 17.6);

Tailwind

colors: {
  custom: {
    50: '#794c4d',
    500: '#3f050f',
    950: '#000000',
  },
}

SCSS

$custom: #3f050f;
$custom-light: #794c4d;
$custom-dark: #000000;

JSON

{
  "hex": "#3f050f",
  "rgb": {
    "r": 63,
    "g": 5,
    "b": 15
  },
  "hsl": {
    "h": 349.655,
    "s": 85.294,
    "l": 13.333
  },
  "oklch": {
    "l": 0.23985,
    "c": 0.08674,
    "h": 17.6
  },
  "luminance": 0.012
}

Semantic roles & 50–950 ramp

primary

#3F050F

secondary

#20806F

accent

#FCD82C

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0101

muted

#7C7777

Preview Lab

Preview with #3F050F

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

Preview Lab → · Contrast checker → · Palette generator →