#3F0312#3F0312

#3F0312 is a very dark, moderate red. Relative luminance 0.012; OKLCH L 23.8% C 0.089 H 13.3°. Best body text is #FFFFFF at 17.03:1 contrast (WCAG AA passes).

Color values

HEX	#3F0312
RGB	rgb(63, 3, 18)
HSL	hsl(345, 91%, 13%)
HSV	hsv(345, 95%, 25%)
CMYK	cmyk(0%, 95.2%, 71.4%, 75.3%)
CIE-LAB	lab(10.30, 28.94, 8.01)
CIE-LCH	lch(10.30, 30.03, 15.47°)
OKLab	oklab(23.82% 0.0871 0.0207)
OKLCH	oklch(23.82% 0.089 13.3)
XYZ	xyz(2.1919, 1.1659, 0.6818)
Luminance	0.0117 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F0312 #033F30

analogous

#3F0330 #3F0312 #3F1203

triadic

#3F0312 #123F03 #03123F

tetradic

#3F0312 #303F03 #033F30 #12033F

square

#3F0312 #303F03 #033F30 #12033F

split-complementary

#3F0312 #033F12 #03303F

monochromatic

#1D0108 #1D0108 #3F0312 #790623 #B40933

Accessibility & contrast

On white

17.03

#3F0312 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#3F0312 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F0312

17.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F0312	#FFFFFF	#000000	##FFFFFF
##3F0312	1.00	17.03	1.23	17.03
#FFFFFF	17.03	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#151412

Deuteranopia (green-blind)

#242010

Tritanopia (blue-blind)

#460009

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #3f0312;
/* rgb */ color: rgb(63, 3, 18);
/* oklch */ color: oklch(23.8% 0.089 13.3);

Tailwind

colors: {
  custom: {
    50: '#794b4f',
    500: '#3f0312',
    950: '#000000',
  },
}

SCSS

$custom: #3f0312;
$custom-light: #794b4f;
$custom-dark: #000000;

JSON

{
  "hex": "#3f0312",
  "rgb": {
    "r": 63,
    "g": 3,
    "b": 18
  },
  "hsl": {
    "h": 345,
    "s": 90.909,
    "l": 12.941
  },
  "oklch": {
    "l": 0.23819,
    "c": 0.08949,
    "h": 13.3
  },
  "luminance": 0.01166
}

Semantic roles & 50–950 ramp

primary

#3F0312

secondary

#1D8168

accent

#FFC929

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0102

muted

#7C7778

Preview Lab

Preview with #3F0312

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

Preview Lab → · Contrast checker → · Palette generator →