#391010#391010

#391010 is a very dark, moderate red. Relative luminance 0.013; OKLCH L 24.2% C 0.065 H 23.3°. Best body text is #FFFFFF at 16.73:1 contrast (WCAG AA passes).

Color values

HEX	#391010
RGB	rgb(57, 16, 16)
HSL	hsl(0, 56%, 14%)
HSV	hsv(0, 72%, 22%)
CMYK	cmyk(0%, 71.9%, 71.9%, 77.6%)
CIE-LAB	lab(11.12, 20.36, 10.12)
CIE-LCH	lch(11.12, 22.73, 26.43°)
OKLab	oklab(24.16% 0.0601 0.0259)
OKLCH	oklch(24.16% 0.065 23.3)
XYZ	xyz(1.9663, 1.2781, 0.6333)
Luminance	0.0128 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#391010 #103939

analogous

#391025 #391010 #392510

triadic

#391010 #103910 #101039

tetradic

#391010 #253910 #103939 #251039

square

#391010 #253910 #103939 #251039

split-complementary

#391010 #103925 #102539

monochromatic

#180707 #180707 #391010 #691D1D #992B2B

Accessibility & contrast

On white

16.73

#391010 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#391010 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #391010

16.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##391010	#FFFFFF	#000000	##FFFFFF
##391010	1.00	16.73	1.26	16.73
#FFFFFF	16.73	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A1810

Deuteranopia (green-blind)

#25210F

Tritanopia (blue-blind)

#3F0810

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #391010;
/* rgb */ color: rgb(57, 16, 16);
/* oklch */ color: oklch(24.2% 0.065 23.3);

Tailwind

colors: {
  custom: {
    50: '#73504e',
    500: '#391010',
    950: '#000000',
  },
}

SCSS

$custom: #391010;
$custom-light: #73504e;
$custom-dark: #000000;

JSON

{
  "hex": "#391010",
  "rgb": {
    "r": 57,
    "g": 16,
    "b": 16
  },
  "hsl": {
    "h": 0,
    "s": 56.164,
    "l": 14.314
  },
  "oklch": {
    "l": 0.24164,
    "c": 0.06543,
    "h": 23.3
  },
  "luminance": 0.01278
}

Semantic roles & 50–950 ramp

primary

#391010

secondary

#327373

accent

#DFDF48

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#080201

muted

#7B7877

Preview Lab

Preview with #391010

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

Preview Lab → · Contrast checker → · Palette generator →