#3F0B15#3F0B15

#3F0B15 is a very dark, moderate red. Relative luminance 0.013; OKLCH L 24.8% C 0.080 H 14.3°. Best body text is #FFFFFF at 16.54:1 contrast (WCAG AA passes).

Color values

HEX	#3F0B15
RGB	rgb(63, 11, 21)
HSL	hsl(348, 70%, 15%)
HSV	hsv(348, 83%, 25%)
CMYK	cmyk(0%, 82.5%, 66.7%, 75.3%)
CIE-LAB	lab(11.62, 25.66, 7.91)
CIE-LCH	lch(11.62, 26.85, 17.12°)
OKLab	oklab(24.82% 0.0772 0.0197)
OKLCH	oklch(24.82% 0.08 14.3)
XYZ	xyz(2.3052, 1.3506, 0.8486)
Luminance	0.0135 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F0B15 #0B3F35

analogous

#3F0B2F #3F0B15 #3F1B0B

triadic

#3F0B15 #153F0B #0B153F

tetradic

#3F0B15 #2F3F0B #0B3F35 #1B0B3F

square

#3F0B15 #2F3F0B #0B3F35 #1B0B3F

split-complementary

#3F0B15 #0B3F1B #0B2F3F

monochromatic

#1A0509 #1A0509 #3F0B15 #731426 #A71D38

Accessibility & contrast

On white

16.54

#3F0B15 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#3F0B15 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F0B15

16.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F0B15	#FFFFFF	#000000	##FFFFFF
##3F0B15	1.00	16.54	1.27	16.54
#FFFFFF	16.54	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#191815

Deuteranopia (green-blind)

#262314

Tritanopia (blue-blind)

#46010F

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #3f0b15;
/* rgb */ color: rgb(63, 11, 21);
/* oklch */ color: oklch(24.8% 0.080 14.3);

Tailwind

colors: {
  custom: {
    50: '#784f52',
    500: '#3f0b15',
    950: '#000000',
  },
}

SCSS

$custom: #3f0b15;
$custom-light: #784f52;
$custom-dark: #000000;

JSON

{
  "hex": "#3f0b15",
  "rgb": {
    "r": 63,
    "g": 11,
    "b": 21
  },
  "hsl": {
    "h": 348.462,
    "s": 70.27,
    "l": 14.51
  },
  "oklch": {
    "l": 0.24819,
    "c": 0.07963,
    "h": 14.3
  },
  "luminance": 0.0135
}

Semantic roles & 50–950 ramp

primary

#3F0B15

secondary

#2A7C6C

accent

#EDCB3B

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#090202

muted

#7B7878

Preview Lab

Preview with #3F0B15

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

Preview Lab → · Contrast checker → · Palette generator →