#3F030D#3F030D

#3F030D is a very dark, moderate red. Relative luminance 0.012; OKLCH L 23.7% C 0.089 H 18.5°. Best body text is #FFFFFF at 17.07:1 contrast (WCAG AA passes).

Color values

HEX	#3F030D
RGB	rgb(63, 3, 13)
HSL	hsl(350, 91%, 13%)
HSV	hsv(350, 95%, 25%)
CMYK	cmyk(0%, 95.2%, 79.4%, 75.3%)
CIE-LAB	lab(10.19, 28.62, 10.57)
CIE-LCH	lch(10.19, 30.51, 20.28°)
OKLab	oklab(23.7% 0.0847 0.0283)
OKLCH	oklch(23.7% 0.089 18.5)
XYZ	xyz(2.1554, 1.1513, 0.4894)
Luminance	0.0115 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F030D #033F35

analogous

#3F032B #3F030D #3F1703

triadic

#3F030D #0D3F03 #030D3F

tetradic

#3F030D #2B3F03 #033F35 #17033F

square

#3F030D #2B3F03 #033F35 #17033F

split-complementary

#3F030D #033F17 #032B3F

monochromatic

#1D0106 #1D0106 #3F030D #790619 #B40925

Accessibility & contrast

On white

17.07

#3F030D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#3F030D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F030D

17.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F030D	#FFFFFF	#000000	##FFFFFF
##3F030D	1.00	17.07	1.23	17.07
#FFFFFF	17.07	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#15140D

Deuteranopia (green-blind)

#25200B

Tritanopia (blue-blind)

#460007

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #3f030d;
/* rgb */ color: rgb(63, 3, 13);
/* oklch */ color: oklch(23.7% 0.089 18.5);

Tailwind

colors: {
  custom: {
    50: '#794b4c',
    500: '#3f030d',
    950: '#000000',
  },
}

SCSS

$custom: #3f030d;
$custom-light: #794b4c;
$custom-dark: #000000;

JSON

{
  "hex": "#3f030d",
  "rgb": {
    "r": 63,
    "g": 3,
    "b": 13
  },
  "hsl": {
    "h": 350,
    "s": 90.909,
    "l": 12.941
  },
  "oklch": {
    "l": 0.23702,
    "c": 0.08932,
    "h": 18.5
  },
  "luminance": 0.01151
}

Semantic roles & 50–950 ramp

primary

#3F030D

secondary

#1D8170

accent

#FFDB29

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0101

muted

#7C7777

Preview Lab

Preview with #3F030D

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

Preview Lab → · Contrast checker → · Palette generator →