#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
RGB	rgb(34, 28, 188)
HSL	hsl(242, 74%, 42%)
HSV	hsv(242, 85%, 74%)
CMYK	cmyk(81.9%, 85.1%, 0%, 26.3%)
CIE-LAB	lab(26.16, 55.49, -79.49)
CIE-LCH	lch(26.16, 96.94, 304.92°)
OKLab	oklab(38.8% -0.0003 -0.23)
OKLCH	oklch(38.8% 0.23 269.9)
XYZ	xyz(10.1490, 4.8002, 47.9588)
Luminance	0.0480 (WCAG relative)
Temperature	cool
Family	blue

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
##221CBC	1.00	10.71	1.96	10.71
#FFFFFF	10.71	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.71	1.00	21.00	1.00

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.

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