#3F121C#3F121C

#3F121C is a dark, moderate red. Relative luminance 0.016; OKLCH L 26.0% C 0.071 H 10.0°. Best body text is #FFFFFF at 15.97:1 contrast (WCAG AA passes).

Color values

HEX	#3F121C
RGB	rgb(63, 18, 28)
HSL	hsl(347, 56%, 16%)
HSV	hsv(347, 71%, 25%)
CMYK	cmyk(0%, 71.4%, 55.6%, 75.3%)
CIE-LAB	lab(13.07, 22.93, 4.74)
CIE-LCH	lch(13.07, 23.41, 11.68°)
OKLab	oklab(25.96% 0.0696 0.0122)
OKLCH	oklch(25.96% 0.071 10)
XYZ	xyz(2.4760, 1.5735, 1.2717)
Luminance	0.0157 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F121C #123F35

analogous

#3F1232 #3F121C #3F1E12

triadic

#3F121C #1C3F12 #121C3F

tetradic

#3F121C #323F12 #123F35 #1E123F

square

#3F121C #323F12 #123F35 #1E123F

split-complementary

#3F121C #123F1E #12323F

monochromatic

#18070B #18070B #3F121C #6F2031 #9E2D46

Accessibility & contrast

On white

15.97

#3F121C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#3F121C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F121C

15.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F121C	#FFFFFF	#000000	##FFFFFF
##3F121C	1.00	15.97	1.31	15.97
#FFFFFF	15.97	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	15.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C1C1C

Deuteranopia (green-blind)

#28251B

Tritanopia (blue-blind)

#450B16

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #3f121c;
/* rgb */ color: rgb(63, 18, 28);
/* oklch */ color: oklch(26.0% 0.071 10.0);

Tailwind

colors: {
  custom: {
    50: '#775357',
    500: '#3f121c',
    950: '#000000',
  },
}

SCSS

$custom: #3f121c;
$custom-light: #775357;
$custom-dark: #000000;

JSON

{
  "hex": "#3f121c",
  "rgb": {
    "r": 63,
    "g": 18,
    "b": 28
  },
  "hsl": {
    "h": 346.667,
    "s": 55.556,
    "l": 15.882
  },
  "oklch": {
    "l": 0.25957,
    "c": 0.07062,
    "h": 10
  },
  "luminance": 0.01573
}

Semantic roles & 50–950 ramp

primary

#3F121C

secondary

#357869

accent

#DFBE49

background

#F7F4F5

surface

#EDE7E9

border

#C8C3C5

text

#090203

muted

#7B7878

Preview Lab

Preview with #3F121C

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

Preview Lab → · Contrast checker → · Palette generator →