#3F0405#3F0405

#3F0405 is a very dark, moderate red. Relative luminance 0.012; OKLCH L 23.7% C 0.089 H 26.5°. Best body text is #FFFFFF at 17.06:1 contrast (WCAG AA passes).

Color values

HEX	#3F0405
RGB	rgb(63, 4, 5)
HSL	hsl(359, 88%, 13%)
HSV	hsv(359, 94%, 25%)
CMYK	cmyk(0%, 93.7%, 92.1%, 75.3%)
CIE-LAB	lab(10.22, 27.75, 13.98)
CIE-LCH	lch(10.22, 31.07, 26.73°)
OKLab	oklab(23.68% 0.0795 0.0396)
OKLCH	oklch(23.68% 0.089 26.5)
XYZ	xyz(2.1210, 1.1549, 0.2548)
Luminance	0.0115 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F0405 #043F3E

analogous

#3F0422 #3F0405 #3F2004

triadic

#3F0405 #053F04 #04053F

tetradic

#3F0405 #223F04 #043F3E #20043F

square

#3F0405 #223F04 #043F3E #20043F

split-complementary

#3F0405 #043F20 #04223F

monochromatic

#1D0202 #1D0202 #3F0405 #79080A #B20B0E

Accessibility & contrast

On white

17.06

#3F0405 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#3F0405 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F0405

17.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F0405	#FFFFFF	#000000	##FFFFFF
##3F0405	1.00	17.06	1.23	17.06
#FFFFFF	17.06	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#171404

Deuteranopia (green-blind)

#262003

Tritanopia (blue-blind)

#460005

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #3f0405;
/* rgb */ color: rgb(63, 4, 5);
/* oklch */ color: oklch(23.7% 0.089 26.5);

Tailwind

colors: {
  custom: {
    50: '#7a4b49',
    500: '#3f0405',
    950: '#000000',
  },
}

SCSS

$custom: #3f0405;
$custom-light: #7a4b49;
$custom-dark: #000000;

JSON

{
  "hex": "#3f0405",
  "rgb": {
    "r": 63,
    "g": 4,
    "b": 5
  },
  "hsl": {
    "h": 358.983,
    "s": 88.06,
    "l": 13.137
  },
  "oklch": {
    "l": 0.23679,
    "c": 0.08883,
    "h": 26.5
  },
  "luminance": 0.01155
}

Semantic roles & 50–950 ramp

primary

#3F0405

secondary

#1E807F

accent

#FEFB2A

background

#F7F4F4

surface

#EEE7E6

border

#C9C3C2

text

#0A0100

muted

#7C7777

Preview Lab

Preview with #3F0405

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

Preview Lab → · Contrast checker → · Palette generator →