#3F0904#3F0904

#3F0904 is a very dark, moderate red. Relative luminance 0.013; OKLCH L 24.3% C 0.084 H 30.7°. Best body text is #FFFFFF at 16.77:1 contrast (WCAG AA passes).

Color values

HEX	#3F0904
RGB	rgb(63, 9, 4)
HSL	hsl(5, 88%, 13%)
HSV	hsv(5, 94%, 25%)
CMYK	cmyk(0%, 85.7%, 93.7%, 75.3%)
CIE-LAB	lab(11.00, 25.45, 15.48)
CIE-LCH	lch(11.00, 29.79, 31.30°)
OKLab	oklab(24.25% 0.072 0.0427)
OKLCH	oklch(24.25% 0.084 30.7)
XYZ	xyz(2.1698, 1.2612, 0.2440)
Luminance	0.0126 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F0904 #043A3F

analogous

#3F041C #3F0904 #3F2604

triadic

#3F0904 #043F09 #09043F

tetradic

#3F0904 #1C3F04 #043A3F #26043F

square

#3F0904 #1C3F04 #043A3F #26043F

split-complementary

#3F0904 #043F26 #041C3F

monochromatic

#1D0402 #1D0402 #3F0904 #791108 #B2190B

Accessibility & contrast

On white

16.77

#3F0904 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#3F0904 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F0904

16.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F0904	#FFFFFF	#000000	##FFFFFF
##3F0904	1.00	16.77	1.25	16.77
#FFFFFF	16.77	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A1603

Deuteranopia (green-blind)

#272202

Tritanopia (blue-blind)

#460008

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #3f0904;
/* rgb */ color: rgb(63, 9, 4);
/* oklch */ color: oklch(24.3% 0.084 30.7);

Tailwind

colors: {
  custom: {
    50: '#794d48',
    500: '#3f0904',
    950: '#000000',
  },
}

SCSS

$custom: #3f0904;
$custom-light: #794d48;
$custom-dark: #000000;

JSON

{
  "hex": "#3f0904",
  "rgb": {
    "r": 63,
    "g": 9,
    "b": 4
  },
  "hsl": {
    "h": 5.085,
    "s": 88.06,
    "l": 13.137
  },
  "oklch": {
    "l": 0.24254,
    "c": 0.08368,
    "h": 30.7
  },
  "luminance": 0.01261
}

Semantic roles & 50–950 ramp

primary

#3F0904

secondary

#1E7880

accent

#ECFE2A

background

#F7F4F4

surface

#EEE7E6

border

#C9C3C2

text

#0A0200

muted

#7C7877

Preview Lab

Preview with #3F0904

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

Preview Lab → · Contrast checker → · Palette generator →