#390404#390404

#390404 is a very dark, moderate red. Relative luminance 0.010; OKLCH L 22.3% C 0.082 H 27.2°. Best body text is #FFFFFF at 17.60:1 contrast (WCAG AA passes).

Color values

HEX	#390404
RGB	rgb(57, 4, 4)
HSL	hsl(0, 87%, 12%)
HSV	hsv(0, 93%, 22%)
CMYK	cmyk(0%, 93%, 93%, 77.6%)
CIE-LAB	lab(8.70, 25.63, 12.01)
CIE-LCH	lch(8.70, 28.30, 25.12°)
OKLab	oklab(22.29% 0.0733 0.0376)
OKLCH	oklch(22.29% 0.082 27.2)
XYZ	xyz(1.7529, 0.9657, 0.2090)
Luminance	0.0097 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#390404 #043939

analogous

#39041F #390404 #391F04

triadic

#390404 #043904 #040439

tetradic

#390404 #1F3904 #043939 #1F0439

square

#390404 #1F3904 #043939 #1F0439

split-complementary

#390404 #04391F #041F39

monochromatic

#1D0202 #1D0202 #390404 #720808 #AB0C0C

Accessibility & contrast

On white

17.60

#390404 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#390404 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #390404

17.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##390404	#FFFFFF	#000000	##FFFFFF
##390404	1.00	17.60	1.19	17.60
#FFFFFF	17.60	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#151103

Deuteranopia (green-blind)

#221D02

Tritanopia (blue-blind)

#400005

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #390404;
/* rgb */ color: rgb(57, 4, 4);
/* oklch */ color: oklch(22.3% 0.082 27.2);

Tailwind

colors: {
  custom: {
    50: '#744a48',
    500: '#390404',
    950: '#000000',
  },
}

SCSS

$custom: #390404;
$custom-light: #744a48;
$custom-dark: #000000;

JSON

{
  "hex": "#390404",
  "rgb": {
    "r": 57,
    "g": 4,
    "b": 4
  },
  "hsl": {
    "h": 0,
    "s": 86.885,
    "l": 11.961
  },
  "oklch": {
    "l": 0.22287,
    "c": 0.08235,
    "h": 27.2
  },
  "luminance": 0.00965
}

Semantic roles & 50–950 ramp

primary

#390404

secondary

#1E7B7B

accent

#FDFD2B

background

#F7F4F4

surface

#EDE7E6

border

#C8C3C2

text

#090100

muted

#7B7777

Preview Lab

Preview with #390404

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

Preview Lab → · Contrast checker → · Palette generator →