#210903#210903

#210903 is a very dark, muted red. Relative luminance 0.005; OKLCH L 17.8% C 0.044 H 39.3°. Best body text is #FFFFFF at 19.00:1 contrast (WCAG AA passes).

Color values

HEX#210903
RGBrgb(33, 9, 3)
HSLhsl(12, 83%, 7%)
HSVhsv(12, 91%, 13%)
CMYKcmyk(0%, 72.7%, 90.9%, 87.1%)
CIE-LABlab(4.75, 9.91, 6.06)
CIE-LCHlch(4.75, 11.62, 31.43°)
OKLaboklab(17.85% 0.0344 0.0282)
OKLCHoklch(17.85% 0.044 39.3)
XYZxyz(0.7414, 0.5254, 0.1485)
Luminance0.0053 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#210903 #031B21
analogous
#21030C #210903 #211803
triadic
#210903 #032109 #090321
tetradic
#210903 #0C2103 #031B21 #180321
square
#210903 #0C2103 #031B21 #180321
split-complementary
#210903 #032118 #030C21
monochromatic
#1C0803 #1C0803 #210903 #591808 #91280D

Accessibility & contrast

On white

19.00
#210903 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.11
#210903 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #210903
19.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##210903#FFFFFF#000000##FFFFFF
##2109031.0019.001.1119.00
#FFFFFF19.001.0021.001.00
#0000001.1121.001.0021.00
##FFFFFF19.001.0021.001.00

Color blindness preview

Protanopia (red-blind)
#100D03
Deuteranopia (green-blind)
#151203
Tritanopia (blue-blind)
#250507
Achromatopsia (no color)
#101010

Design tokens & code

CSS
--color: #210903;
/* rgb */ color: rgb(33, 9, 3);
/* oklch */ color: oklch(17.8% 0.044 39.3);
Tailwind
colors: {
  custom: {
    50: '#5c4a48',
    500: '#210903',
    950: '#000000',
  },
}
SCSS
$custom: #210903;
$custom-light: #5c4a48;
$custom-dark: #000000;
JSON
{
  "hex": "#210903",
  "rgb": {
    "r": 33,
    "g": 9,
    "b": 3
  },
  "hsl": {
    "h": 12,
    "s": 83.333,
    "l": 7.059
  },
  "oklch": {
    "l": 0.17845,
    "c": 0.04445,
    "h": 39.3
  },
  "luminance": 0.00525
}

Semantic roles & 50–950 ramp

primary
#210903
secondary
#1B5665
accent
#D1FA2E
background
#F5F4F4
surface
#E9E7E6
border
#C5C3C2
text
#040100
muted
#797777

Preview Lab

Preview with #210903

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

Preview Lab → · Contrast checker → · Palette generator →

#210903 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva