#3F1018#3F1018

#3F1018 is a dark, moderate red. Relative luminance 0.015; OKLCH L 25.5% C 0.073 H 13.9°. Best body text is #FFFFFF at 16.17:1 contrast (WCAG AA passes).

Color values

HEX	#3F1018
RGB	rgb(63, 16, 24)
HSL	hsl(350, 59%, 15%)
HSV	hsv(350, 75%, 25%)
CMYK	cmyk(0%, 74.6%, 61.9%, 75.3%)
CIE-LAB	lab(12.57, 23.56, 7.01)
CIE-LCH	lch(12.57, 24.58, 16.57°)
OKLab	oklab(25.55% 0.071 0.0176)
OKLCH	oklch(25.55% 0.073 13.9)
XYZ	xyz(2.4003, 1.4936, 1.0259)
Luminance	0.0149 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F1018 #103F37

analogous

#3F102F #3F1018 #3F1F10

triadic

#3F1018 #183F10 #10183F

tetradic

#3F1018 #2F3F10 #103F37 #1F103F

square

#3F1018 #2F3F10 #103F37 #1F103F

split-complementary

#3F1018 #103F1F #102F3F

monochromatic

#180609 #180609 #3F1018 #701C2B #A1293D

Accessibility & contrast

On white

16.17

#3F1018 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#3F1018 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F1018

16.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F1018	#FFFFFF	#000000	##FFFFFF
##3F1018	1.00	16.17	1.30	16.17
#FFFFFF	16.17	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B1B18

Deuteranopia (green-blind)

#272417

Tritanopia (blue-blind)

#460713

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #3f1018;
/* rgb */ color: rgb(63, 16, 24);
/* oklch */ color: oklch(25.5% 0.073 13.9);

Tailwind

colors: {
  custom: {
    50: '#785154',
    500: '#3f1018',
    950: '#000000',
  },
}

SCSS

$custom: #3f1018;
$custom-light: #785154;
$custom-dark: #000000;

JSON

{
  "hex": "#3f1018",
  "rgb": {
    "r": 63,
    "g": 16,
    "b": 24
  },
  "hsl": {
    "h": 349.787,
    "s": 59.494,
    "l": 15.49
  },
  "oklch": {
    "l": 0.25546,
    "c": 0.07315,
    "h": 13.9
  },
  "luminance": 0.01493
}

Semantic roles & 50–950 ramp

primary

#3F1018

secondary

#32796D

accent

#E3C845

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#090202

muted

#7B7878

Preview Lab

Preview with #3F1018

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

Preview Lab → · Contrast checker → · Palette generator →