#3F0B0D#3F0B0D

#3F0B0D is a very dark, moderate red. Relative luminance 0.013; OKLCH L 24.6% C 0.080 H 23.3°. Best body text is #FFFFFF at 16.60:1 contrast (WCAG AA passes).

Color values

HEX	#3F0B0D
RGB	rgb(63, 11, 13)
HSL	hsl(358, 70%, 15%)
HSV	hsv(358, 83%, 25%)
CMYK	cmyk(0%, 82.5%, 79.4%, 75.3%)
CIE-LAB	lab(11.45, 25.08, 12.33)
CIE-LCH	lch(11.45, 27.94, 26.18°)
OKLab	oklab(24.64% 0.0734 0.0317)
OKLCH	oklch(24.64% 0.08 23.3)
XYZ	xyz(2.2425, 1.3255, 0.5185)
Luminance	0.0132 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F0B0D #0B3F3D

analogous

#3F0B27 #3F0B0D #3F230B

triadic

#3F0B0D #0D3F0B #0B0D3F

tetradic

#3F0B0D #273F0B #0B3F3D #230B3F

square

#3F0B0D #273F0B #0B3F3D #230B3F

split-complementary

#3F0B0D #0B3F23 #0B273F

monochromatic

#1A0505 #1A0505 #3F0B0D #731418 #A71D23

Accessibility & contrast

On white

16.60

#3F0B0D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#3F0B0D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F0B0D

16.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F0B0D	#FFFFFF	#000000	##FFFFFF
##3F0B0D	1.00	16.60	1.26	16.60
#FFFFFF	16.60	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A170D

Deuteranopia (green-blind)

#27220B

Tritanopia (blue-blind)

#46000C

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #3f0b0d;
/* rgb */ color: rgb(63, 11, 13);
/* oklch */ color: oklch(24.6% 0.080 23.3);

Tailwind

colors: {
  custom: {
    50: '#794e4c',
    500: '#3f0b0d',
    950: '#000000',
  },
}

SCSS

$custom: #3f0b0d;
$custom-light: #794e4c;
$custom-dark: #000000;

JSON

{
  "hex": "#3f0b0d",
  "rgb": {
    "r": 63,
    "g": 11,
    "b": 13
  },
  "hsl": {
    "h": 357.692,
    "s": 70.27,
    "l": 14.51
  },
  "oklch": {
    "l": 0.24636,
    "c": 0.07992,
    "h": 23.3
  },
  "luminance": 0.01325
}

Semantic roles & 50–950 ramp

primary

#3F0B0D

secondary

#2A7C79

accent

#EDE63B

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0201

muted

#7C7877

Preview Lab

Preview with #3F0B0D

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

Preview Lab → · Contrast checker → · Palette generator →