#3F0407#3F0407

#3F0407 is a very dark, moderate red. Relative luminance 0.012; OKLCH L 23.7% C 0.089 H 24.6°. Best body text is #FFFFFF at 17.05:1 contrast (WCAG AA passes).

Color values

HEX	#3F0407
RGB	rgb(63, 4, 7)
HSL	hsl(357, 88%, 13%)
HSV	hsv(357, 94%, 25%)
CMYK	cmyk(0%, 93.7%, 88.9%, 75.3%)
CIE-LAB	lab(10.25, 27.85, 13.21)
CIE-LCH	lch(10.25, 30.82, 25.38°)
OKLab	oklab(23.71% 0.0805 0.0368)
OKLCH	oklch(23.71% 0.089 24.6)
XYZ	xyz(2.1319, 1.1593, 0.3125)
Luminance	0.0116 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F0407 #043F3C

analogous

#3F0424 #3F0407 #3F1E04

triadic

#3F0407 #073F04 #04073F

tetradic

#3F0407 #243F04 #043F3C #1E043F

square

#3F0407 #243F04 #043F3C #1E043F

split-complementary

#3F0407 #043F1E #04243F

monochromatic

#1D0203 #1D0203 #3F0407 #79080D #B20B14

Accessibility & contrast

On white

17.05

#3F0407 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#3F0407 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F0407

17.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F0407	#FFFFFF	#000000	##FFFFFF
##3F0407	1.00	17.05	1.23	17.05
#FFFFFF	17.05	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#171407

Deuteranopia (green-blind)

#252105

Tritanopia (blue-blind)

#460006

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #3f0407;
/* rgb */ color: rgb(63, 4, 7);
/* oklch */ color: oklch(23.7% 0.089 24.6);

Tailwind

colors: {
  custom: {
    50: '#7a4b49',
    500: '#3f0407',
    950: '#000000',
  },
}

SCSS

$custom: #3f0407;
$custom-light: #7a4b49;
$custom-dark: #000000;

JSON

{
  "hex": "#3f0407",
  "rgb": {
    "r": 63,
    "g": 4,
    "b": 7
  },
  "hsl": {
    "h": 356.949,
    "s": 88.06,
    "l": 13.137
  },
  "oklch": {
    "l": 0.23714,
    "c": 0.08852,
    "h": 24.6
  },
  "luminance": 0.01159
}

Semantic roles & 50–950 ramp

primary

#3F0407

secondary

#1E807B

accent

#FEF32A

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0101

muted

#7C7777

Preview Lab

Preview with #3F0407

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

Preview Lab → · Contrast checker → · Palette generator →