#3F1004#3F1004

#3F1004 is a dark, moderate red. Relative luminance 0.014; OKLCH L 25.2% C 0.077 H 36.1°. Best body text is #FFFFFF at 16.31:1 contrast (WCAG AA passes).

Color values

HEX	#3F1004
RGB	rgb(63, 16, 4)
HSL	hsl(12, 88%, 13%)
HSV	hsv(12, 94%, 25%)
CMYK	cmyk(0%, 74.6%, 93.7%, 75.3%)
CIE-LAB	lab(12.20, 22.18, 17.12)
CIE-LCH	lch(12.20, 28.02, 37.67°)
OKLab	oklab(25.15% 0.0618 0.0451)
OKLCH	oklch(25.15% 0.077 36.1)
XYZ	xyz(2.2574, 1.4364, 0.2732)
Luminance	0.0144 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F1004 #04333F

analogous

#3F0415 #3F1004 #3F2D04

triadic

#3F1004 #043F10 #10043F

tetradic

#3F1004 #153F04 #04333F #2D043F

square

#3F1004 #153F04 #04333F #2D043F

split-complementary

#3F1004 #043F2D #04153F

monochromatic

#1D0702 #1D0702 #3F1004 #791F08 #B22D0B

Accessibility & contrast

On white

16.31

#3F1004 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#3F1004 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F1004

16.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F1004	#FFFFFF	#000000	##FFFFFF
##3F1004	1.00	16.31	1.29	16.31
#FFFFFF	16.31	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E1903

Deuteranopia (green-blind)

#292403

Tritanopia (blue-blind)

#46040D

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #3f1004;
/* rgb */ color: rgb(63, 16, 4);
/* oklch */ color: oklch(25.2% 0.077 36.1);

Tailwind

colors: {
  custom: {
    50: '#795148',
    500: '#3f1004',
    950: '#000000',
  },
}

SCSS

$custom: #3f1004;
$custom-light: #795148;
$custom-dark: #000000;

JSON

{
  "hex": "#3f1004",
  "rgb": {
    "r": 63,
    "g": 16,
    "b": 4
  },
  "hsl": {
    "h": 12.203,
    "s": 88.06,
    "l": 13.137
  },
  "oklch": {
    "l": 0.25151,
    "c": 0.07653,
    "h": 36.1
  },
  "luminance": 0.01436
}

Semantic roles & 50–950 ramp

primary

#3F1004

secondary

#1E6C80

accent

#D3FE2A

background

#F7F4F4

surface

#EEE7E6

border

#C9C3C2

text

#0A0200

muted

#7C7877

Preview Lab

Preview with #3F1004

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

Preview Lab → · Contrast checker → · Palette generator →