#3F0509#3F0509

#3F0509 is a very dark, moderate red. Relative luminance 0.012; OKLCH L 23.9% C 0.087 H 23.3°. Best body text is #FFFFFF at 16.98:1 contrast (WCAG AA passes).

Color values

HEX	#3F0509
RGB	rgb(63, 5, 9)
HSL	hsl(356, 85%, 13%)
HSV	hsv(356, 92%, 25%)
CMYK	cmyk(0%, 92.1%, 85.7%, 75.3%)
CIE-LAB	lab(10.45, 27.48, 12.67)
CIE-LCH	lch(10.45, 30.26, 24.75°)
OKLab	oklab(23.87% 0.08 0.0345)
OKLCH	oklch(23.87% 0.087 23.3)
XYZ	xyz(2.1537, 1.1854, 0.3738)
Luminance	0.0118 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F0509 #053F3B

analogous

#3F0526 #3F0509 #3F1E05

triadic

#3F0509 #093F05 #05093F

tetradic

#3F0509 #263F05 #053F3B #1E053F

square

#3F0509 #263F05 #053F3B #1E053F

split-complementary

#3F0509 #053F1E #05263F

monochromatic

#1C0204 #1C0204 #3F0509 #780911 #B00E19

Accessibility & contrast

On white

16.98

#3F0509 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#3F0509 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F0509

16.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F0509	#FFFFFF	#000000	##FFFFFF
##3F0509	1.00	16.98	1.24	16.98
#FFFFFF	16.98	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#171409

Deuteranopia (green-blind)

#262107

Tritanopia (blue-blind)

#460007

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #3f0509;
/* rgb */ color: rgb(63, 5, 9);
/* oklch */ color: oklch(23.9% 0.087 23.3);

Tailwind

colors: {
  custom: {
    50: '#794c4a',
    500: '#3f0509',
    950: '#000000',
  },
}

SCSS

$custom: #3f0509;
$custom-light: #794c4a;
$custom-dark: #000000;

JSON

{
  "hex": "#3f0509",
  "rgb": {
    "r": 63,
    "g": 5,
    "b": 9
  },
  "hsl": {
    "h": 355.862,
    "s": 85.294,
    "l": 13.333
  },
  "oklch": {
    "l": 0.23869,
    "c": 0.08708,
    "h": 23.3
  },
  "luminance": 0.01185
}

Semantic roles & 50–950 ramp

primary

#3F0509

secondary

#208079

accent

#FCED2C

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0101

muted

#7C7777

Preview Lab

Preview with #3F0509

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

Preview Lab → · Contrast checker → · Palette generator →