#21239B#21239B

#21239B is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.7% C 0.186 H 271.2°. Best body text is #FFFFFF at 11.81:1 contrast (WCAG AA passes).

Color values

HEX#21239B
RGBrgb(33, 35, 155)
HSLhsl(239, 65%, 37%)
HSVhsv(239, 79%, 61%)
CMYKcmyk(78.7%, 77.4%, 0%, 39.2%)
CIE-LABlab(23.31, 41.56, -64.33)
CIE-LCHlch(23.31, 76.59, 302.87°)
OKLaboklab(35.66% 0.004 -0.1863)
OKLCHoklch(35.66% 0.186 271.2)
XYZxyz(7.1426, 3.8912, 31.3786)
Luminance0.0389 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#21239B #9B9921
analogous
#21609B #21239B #5C219B
triadic
#21239B #9B2123 #239B21
tetradic
#21239B #9B2160 #9B9921 #219B5C
square
#21239B #9B2160 #9B9921 #219B5C
split-complementary
#21239B #9B5C21 #609B21
monochromatic
#0C0C36 #161869 #21239B #2C2ECD #5A5DDC

Accessibility & contrast

On white

11.81
#21239B on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.78
#21239B on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21239B
11.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##21239B#FFFFFF#000000##FFFFFF
##21239B1.0011.811.7811.81
#FFFFFF11.811.0021.001.00
#0000001.7821.001.0021.00
##FFFFFF11.811.0021.001.00

Color blindness preview

Protanopia (red-blind)
#003E9E
Deuteranopia (green-blind)
#003199
Tritanopia (blue-blind)
#00475E
Achromatopsia (no color)
#383838

Design tokens & code

CSS
--color: #21239b;
/* rgb */ color: rgb(33, 35, 155);
/* oklch */ color: oklch(35.7% 0.186 271.2);
Tailwind
colors: {
  custom: {
    50: '#7360ba',
    500: '#21239b',
    950: '#000000',
  },
}
SCSS
$custom: #21239b;
$custom-light: #7360ba;
$custom-dark: #000000;
JSON
{
  "hex": "#21239b",
  "rgb": {
    "r": 33,
    "g": 35,
    "b": 155
  },
  "hsl": {
    "h": 239.016,
    "s": 64.894,
    "l": 36.863
  },
  "oklch": {
    "l": 0.3566,
    "c": 0.18631,
    "h": 271.2
  },
  "luminance": 0.03892
}

Semantic roles & 50–950 ramp

primary
#21239B
secondary
#C0BE58
accent
#E540E8
background
#F7F5FB
surface
#EEE9F6
border
#C9C5D0
text
#0A0512
muted
#7C7981

Preview Lab

Preview with #21239B

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

Preview Lab → · Contrast checker → · Palette generator →

#21239B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva