#3F0B16#3F0B16

#3F0B16 is a very dark, moderate red. Relative luminance 0.014; OKLCH L 24.8% C 0.080 H 13.1°. Best body text is #FFFFFF at 16.53:1 contrast (WCAG AA passes).

Color values

HEX	#3F0B16
RGB	rgb(63, 11, 22)
HSL	hsl(347, 70%, 15%)
HSV	hsv(347, 83%, 25%)
CMYK	cmyk(0%, 82.5%, 65.1%, 75.3%)
CIE-LAB	lab(11.65, 25.74, 7.24)
CIE-LCH	lch(11.65, 26.74, 15.70°)
OKLab	oklab(24.85% 0.0776 0.0181)
OKLCH	oklch(24.85% 0.08 13.1)
XYZ	xyz(2.3146, 1.3544, 0.8984)
Luminance	0.0135 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F0B16 #0B3F34

analogous

#3F0B30 #3F0B16 #3F1A0B

triadic

#3F0B16 #163F0B #0B163F

tetradic

#3F0B16 #303F0B #0B3F34 #1A0B3F

square

#3F0B16 #303F0B #0B3F34 #1A0B3F

split-complementary

#3F0B16 #0B3F1A #0B303F

monochromatic

#1A0509 #1A0509 #3F0B16 #731428 #A71D3A

Accessibility & contrast

On white

16.53

#3F0B16 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#3F0B16 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F0B16

16.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F0B16	#FFFFFF	#000000	##FFFFFF
##3F0B16	1.00	16.53	1.27	16.53
#FFFFFF	16.53	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#191816

Deuteranopia (green-blind)

#262315

Tritanopia (blue-blind)

#460110

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #3f0b16;
/* rgb */ color: rgb(63, 11, 22);
/* oklch */ color: oklch(24.8% 0.080 13.1);

Tailwind

colors: {
  custom: {
    50: '#784f52',
    500: '#3f0b16',
    950: '#000000',
  },
}

SCSS

$custom: #3f0b16;
$custom-light: #784f52;
$custom-dark: #000000;

JSON

{
  "hex": "#3f0b16",
  "rgb": {
    "r": 63,
    "g": 11,
    "b": 22
  },
  "hsl": {
    "h": 347.308,
    "s": 70.27,
    "l": 14.51
  },
  "oklch": {
    "l": 0.24847,
    "c": 0.07971,
    "h": 13.1
  },
  "luminance": 0.01354
}

Semantic roles & 50–950 ramp

primary

#3F0B16

secondary

#2A7C6A

accent

#EDC73B

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#090202

muted

#7B7878

Preview Lab

Preview with #3F0B16

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

Preview Lab → · Contrast checker → · Palette generator →