#390403#390403

#390403 is a very dark, moderate red. Relative luminance 0.010; OKLCH L 22.3% C 0.083 H 28.4°. Best body text is #FFFFFF at 17.61:1 contrast (WCAG AA passes).

Color values

HEX#390403
RGBrgb(57, 4, 3)
HSLhsl(1, 90%, 12%)
HSVhsv(1, 95%, 22%)
CMYKcmyk(0%, 93%, 94.7%, 77.6%)
CIE-LABlab(8.68, 25.57, 12.40)
CIE-LCHlch(8.68, 28.41, 25.87°)
OKLaboklab(22.27% 0.0727 0.0393)
OKLCHoklch(22.27% 0.083 28.4)
XYZxyz(1.7474, 0.9636, 0.1801)
Luminance0.0096 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#390403 #033839
analogous
#39031D #390403 #391F03
triadic
#390403 #033904 #040339
tetradic
#390403 #1D3903 #033839 #1F0339
square
#390403 #1D3903 #033839 #1F0339
split-complementary
#390403 #03391F #031D39
monochromatic
#1D0202 #1D0202 #390403 #730806 #AD0C09

Accessibility & contrast

On white

17.61
#390403 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.19
#390403 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #390403
17.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##390403#FFFFFF#000000##FFFFFF
##3904031.0017.611.1917.61
#FFFFFF17.611.0021.001.00
#0000001.1921.001.0021.00
##FFFFFF17.611.0021.001.00

Color blindness preview

Protanopia (red-blind)
#151102
Deuteranopia (green-blind)
#221D01
Tritanopia (blue-blind)
#400004
Achromatopsia (no color)
#191919

Design tokens & code

CSS
--color: #390403;
/* rgb */ color: rgb(57, 4, 3);
/* oklch */ color: oklch(22.3% 0.083 28.4);
Tailwind
colors: {
  custom: {
    50: '#744a48',
    500: '#390403',
    950: '#000000',
  },
}
SCSS
$custom: #390403;
$custom-light: #744a48;
$custom-dark: #000000;
JSON
{
  "hex": "#390403",
  "rgb": {
    "r": 57,
    "g": 4,
    "b": 3
  },
  "hsl": {
    "h": 1.111,
    "s": 90,
    "l": 11.765
  },
  "oklch": {
    "l": 0.22267,
    "c": 0.08259,
    "h": 28.4
  },
  "luminance": 0.00963
}

Semantic roles & 50–950 ramp

primary
#390403
secondary
#1C7A7C
accent
#FBFF29
background
#F7F4F4
surface
#EDE7E6
border
#C8C3C2
text
#090100
muted
#7B7777

Preview Lab

Preview with #390403

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

Preview Lab → · Contrast checker → · Palette generator →

#390403 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva