#221CBC#221CBC

#221CBC is a dark, highly saturated blue. Relative luminance 0.048; OKLCH L 38.8% C 0.230 H 269.9°. Best body text is #FFFFFF at 10.71:1 contrast (WCAG AA passes).

Color values

HEX#221CBC
RGBrgb(34, 28, 188)
HSLhsl(242, 74%, 42%)
HSVhsv(242, 85%, 74%)
CMYKcmyk(81.9%, 85.1%, 0%, 26.3%)
CIE-LABlab(26.16, 55.49, -79.49)
CIE-LCHlch(26.16, 96.94, 304.92°)
OKLaboklab(38.8% -0.0003 -0.23)
OKLCHoklch(38.8% 0.23 269.9)
XYZxyz(10.1490, 4.8002, 47.9588)
Luminance0.0480 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#221CBC #B6BC1C
analogous
#1C66BC #221CBC #721CBC
triadic
#221CBC #BC221C #1CBC22
tetradic
#221CBC #BC1C66 #B6BC1C #1CBC72
square
#221CBC #BC1C66 #B6BC1C #1CBC72
split-complementary
#221CBC #BC721C #66BC1C
monochromatic
#0F0C51 #181487 #221CBC #3B34E1 #6E6AE9

Accessibility & contrast

On white

10.71
#221CBC on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.96
#221CBC on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #221CBC
10.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##221CBC#FFFFFF#000000##FFFFFF
##221CBC1.0010.711.9610.71
#FFFFFF10.711.0021.001.00
#0000001.9621.001.0021.00
##FFFFFF10.711.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0046C0
Deuteranopia (green-blind)
#0035B9
Tritanopia (blue-blind)
#005270
Achromatopsia (no color)
#3E3E3E

Design tokens & code

CSS
--color: #221cbc;
/* rgb */ color: rgb(34, 28, 188);
/* oklch */ color: oklch(38.8% 0.230 269.9);
Tailwind
colors: {
  custom: {
    50: '#7c5ed2',
    500: '#221cbc',
    950: '#000000',
  },
}
SCSS
$custom: #221cbc;
$custom-light: #7c5ed2;
$custom-dark: #000000;
JSON
{
  "hex": "#221cbc",
  "rgb": {
    "r": 34,
    "g": 28,
    "b": 188
  },
  "hsl": {
    "h": 242.25,
    "s": 74.074,
    "l": 42.353
  },
  "oklch": {
    "l": 0.38798,
    "c": 0.23,
    "h": 269.9
  },
  "luminance": 0.04801
}

Semantic roles & 50–950 ramp

primary
#221CBC
secondary
#CACE65
accent
#F137EA
background
#F8F5FD
surface
#F0E9FA
border
#CBC5D3
text
#0C0514
muted
#7D7983

Preview Lab

Preview with #221CBC

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

Preview Lab → · Contrast checker → · Palette generator →

#221CBC Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva