#390904#390904

#390904 is a very dark, moderate red. Relative luminance 0.011; OKLCH L 23.0% C 0.076 H 31.1°. Best body text is #FFFFFF at 17.29:1 contrast (WCAG AA passes).

Color values

HEX	#390904
RGB	rgb(57, 9, 4)
HSL	hsl(6, 87%, 12%)
HSV	hsv(6, 93%, 22%)
CMYK	cmyk(0%, 84.2%, 93%, 77.6%)
CIE-LAB	lab(9.60, 23.13, 13.30)
CIE-LCH	lch(9.60, 26.68, 29.90°)
OKLab	oklab(22.95% 0.0654 0.0395)
OKLCH	oklch(22.95% 0.076 31.1)
XYZ	xyz(1.8072, 1.0743, 0.2270)
Luminance	0.0107 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#390904 #043439

analogous

#39041A #390904 #392404

triadic

#390904 #043909 #090439

tetradic

#390904 #1A3904 #043439 #240439

square

#390904 #1A3904 #043439 #240439

split-complementary

#390904 #043924 #041A39

monochromatic

#1D0502 #1D0502 #390904 #721208 #AB1B0C

Accessibility & contrast

On white

17.29

#390904 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#390904 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #390904

17.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##390904	#FFFFFF	#000000	##FFFFFF
##390904	1.00	17.29	1.21	17.29
#FFFFFF	17.29	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#181403

Deuteranopia (green-blind)

#231F03

Tritanopia (blue-blind)

#400008

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #390904;
/* rgb */ color: rgb(57, 9, 4);
/* oklch */ color: oklch(23.0% 0.076 31.1);

Tailwind

colors: {
  custom: {
    50: '#744c48',
    500: '#390904',
    950: '#000000',
  },
}

SCSS

$custom: #390904;
$custom-light: #744c48;
$custom-dark: #000000;

JSON

{
  "hex": "#390904",
  "rgb": {
    "r": 57,
    "g": 9,
    "b": 4
  },
  "hsl": {
    "h": 5.66,
    "s": 86.885,
    "l": 11.961
  },
  "oklch": {
    "l": 0.22951,
    "c": 0.07643,
    "h": 31.1
  },
  "luminance": 0.01074
}

Semantic roles & 50–950 ramp

primary

#390904

secondary

#1E727B

accent

#E9FD2B

background

#F7F4F4

surface

#EDE7E6

border

#C8C3C2

text

#090100

muted

#7B7777

Preview Lab

Preview with #390904

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

Preview Lab → · Contrast checker → · Palette generator →