#390903#390903

#390903 is a very dark, moderate red. Relative luminance 0.011; OKLCH L 22.9% C 0.077 H 32.3°. Best body text is #FFFFFF at 17.29:1 contrast (WCAG AA passes).

Color values

HEX	#390903
RGB	rgb(57, 9, 3)
HSL	hsl(7, 90%, 12%)
HSV	hsv(7, 95%, 22%)
CMYK	cmyk(0%, 84.2%, 94.7%, 77.6%)
CIE-LAB	lab(9.58, 23.07, 13.68)
CIE-LCH	lch(9.58, 26.82, 30.67°)
OKLab	oklab(22.93% 0.0649 0.0411)
OKLCH	oklch(22.93% 0.077 32.3)
XYZ	xyz(1.8017, 1.0721, 0.1982)
Luminance	0.0107 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#390903 #033339

analogous

#390318 #390903 #392403

triadic

#390903 #033909 #090339

tetradic

#390903 #183903 #033339 #240339

square

#390903 #183903 #033339 #240339

split-complementary

#390903 #033924 #031839

monochromatic

#1D0502 #1D0502 #390903 #731206 #AD1B09

Accessibility & contrast

On white

17.29

#390903 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#390903 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #390903

17.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##390903	#FFFFFF	#000000	##FFFFFF
##390903	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)

#181402

Deuteranopia (green-blind)

#231F02

Tritanopia (blue-blind)

#400008

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #390903;
/* rgb */ color: rgb(57, 9, 3);
/* oklch */ color: oklch(22.9% 0.077 32.3);

Tailwind

colors: {
  custom: {
    50: '#744c48',
    500: '#390903',
    950: '#000000',
  },
}

SCSS

$custom: #390903;
$custom-light: #744c48;
$custom-dark: #000000;

JSON

{
  "hex": "#390903",
  "rgb": {
    "r": 57,
    "g": 9,
    "b": 3
  },
  "hsl": {
    "h": 6.667,
    "s": 90,
    "l": 11.765
  },
  "oklch": {
    "l": 0.22933,
    "c": 0.07677,
    "h": 32.3
  },
  "luminance": 0.01072
}

Semantic roles & 50–950 ramp

primary

#390903

secondary

#1C717C

accent

#E7FF29

background

#F7F4F4

surface

#EDE7E6

border

#C8C3C2

text

#090100

muted

#7B7777

Preview Lab

Preview with #390903

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

Preview Lab → · Contrast checker → · Palette generator →