#3F1017#3F1017

#3F1017 is a dark, moderate red. Relative luminance 0.015; OKLCH L 25.5% C 0.073 H 15.2°. Best body text is #FFFFFF at 16.18:1 contrast (WCAG AA passes).

Color values

HEX	#3F1017
RGB	rgb(63, 16, 23)
HSL	hsl(351, 59%, 15%)
HSV	hsv(351, 75%, 25%)
CMYK	cmyk(0%, 74.6%, 63.5%, 75.3%)
CIE-LAB	lab(12.54, 23.46, 7.72)
CIE-LCH	lch(12.54, 24.70, 18.21°)
OKLab	oklab(25.52% 0.0705 0.0192)
OKLCH	oklch(25.52% 0.073 15.2)
XYZ	xyz(2.3901, 1.4895, 0.9721)
Luminance	0.0149 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F1017 #103F38

analogous

#3F102E #3F1017 #3F2010

triadic

#3F1017 #173F10 #10173F

tetradic

#3F1017 #2E3F10 #103F38 #20103F

square

#3F1017 #2E3F10 #103F38 #20103F

split-complementary

#3F1017 #103F20 #102E3F

monochromatic

#180609 #180609 #3F1017 #701C29 #A1293B

Accessibility & contrast

On white

16.18

#3F1017 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#3F1017 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F1017

16.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F1017	#FFFFFF	#000000	##FFFFFF
##3F1017	1.00	16.18	1.30	16.18
#FFFFFF	16.18	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B1A17

Deuteranopia (green-blind)

#282416

Tritanopia (blue-blind)

#460713

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #3f1017;
/* rgb */ color: rgb(63, 16, 23);
/* oklch */ color: oklch(25.5% 0.073 15.2);

Tailwind

colors: {
  custom: {
    50: '#785153',
    500: '#3f1017',
    950: '#000000',
  },
}

SCSS

$custom: #3f1017;
$custom-light: #785153;
$custom-dark: #000000;

JSON

{
  "hex": "#3f1017",
  "rgb": {
    "r": 63,
    "g": 16,
    "b": 23
  },
  "hsl": {
    "h": 351.064,
    "s": 59.494,
    "l": 15.49
  },
  "oklch": {
    "l": 0.25518,
    "c": 0.07309,
    "h": 15.2
  },
  "luminance": 0.01489
}

Semantic roles & 50–950 ramp

primary

#3F1017

secondary

#32796E

accent

#E3CB45

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#090202

muted

#7B7878

Preview Lab

Preview with #3F1017

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

Preview Lab → · Contrast checker → · Palette generator →