#391018#391018

#391018 is a very dark, moderate red. Relative luminance 0.013; OKLCH L 24.4% C 0.065 H 11.5°. Best body text is #FFFFFF at 16.65:1 contrast (WCAG AA passes).

Color values

HEX	#391018
RGB	rgb(57, 16, 24)
HSL	hsl(348, 56%, 14%)
HSV	hsv(348, 72%, 22%)
CMYK	cmyk(0%, 71.9%, 57.9%, 77.6%)
CIE-LAB	lab(11.32, 21.14, 5.10)
CIE-LCH	lch(11.32, 21.74, 13.56°)
OKLab	oklab(24.38% 0.064 0.013)
OKLCH	oklch(24.38% 0.065 11.5)
XYZ	xyz(2.0377, 1.3066, 1.0089)
Luminance	0.0131 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#391018 #103931

analogous

#39102D #391018 #391D10

triadic

#391018 #183910 #101839

tetradic

#391018 #2D3910 #103931 #1D1039

square

#391018 #2D3910 #103931 #1D1039

split-complementary

#391018 #10391D #102D39

monochromatic

#18070A #18070A #391018 #691D2C #992B40

Accessibility & contrast

On white

16.65

#391018 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#391018 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #391018

16.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##391018	#FFFFFF	#000000	##FFFFFF
##391018	1.00	16.65	1.26	16.65
#FFFFFF	16.65	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#191918

Deuteranopia (green-blind)

#242117

Tritanopia (blue-blind)

#3F0A13

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #391018;
/* rgb */ color: rgb(57, 16, 24);
/* oklch */ color: oklch(24.4% 0.065 11.5);

Tailwind

colors: {
  custom: {
    50: '#725054',
    500: '#391018',
    950: '#000000',
  },
}

SCSS

$custom: #391018;
$custom-light: #725054;
$custom-dark: #000000;

JSON

{
  "hex": "#391018",
  "rgb": {
    "r": 57,
    "g": 16,
    "b": 24
  },
  "hsl": {
    "h": 348.293,
    "s": 56.164,
    "l": 14.314
  },
  "oklch": {
    "l": 0.24379,
    "c": 0.0653,
    "h": 11.5
  },
  "luminance": 0.01306
}

Semantic roles & 50–950 ramp

primary

#391018

secondary

#327366

accent

#DFC248

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#080202

muted

#7B7878

Preview Lab

Preview with #391018

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

Preview Lab → · Contrast checker → · Palette generator →