#223C81#223C81

#223C81 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 37.8% C 0.121 H 265.4°. Best body text is #FFFFFF at 10.34:1 contrast (WCAG AA passes).

Color values

HEX	#223C81
RGB	rgb(34, 60, 129)
HSL	hsl(224, 58%, 32%)
HSV	hsv(224, 74%, 51%)
CMYK	cmyk(73.6%, 53.5%, 0%, 49.4%)
CIE-LAB	lab(27.17, 15.57, -41.90)
CIE-LCH	lch(27.17, 44.70, 290.39°)
OKLab	oklab(37.78% -0.0097 -0.1205)
OKLCH	oklch(37.78% 0.121 265.4)
XYZ	xyz(6.2366, 5.1561, 21.4312)
Luminance	0.0516 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223C81 #816722

analogous

#226C81 #223C81 #382281

triadic

#223C81 #81223C #3C8122

tetradic

#223C81 #81226C #816722 #228138

square

#223C81 #81226C #816722 #228138

split-complementary

#223C81 #813822 #6C8122

monochromatic

#080F20 #152551 #223C81 #2F53B1 #4D71D0

Accessibility & contrast

On white

10.34

#223C81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#223C81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223C81

10.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223C81	#FFFFFF	#000000	##FFFFFF
##223C81	1.00	10.34	2.03	10.34
#FFFFFF	10.34	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#104583

Deuteranopia (green-blind)

#003C80

Tritanopia (blue-blind)

#004C58

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #223c81;
/* rgb */ color: rgb(34, 60, 129);
/* oklch */ color: oklch(37.8% 0.121 265.4);

Tailwind

colors: {
  custom: {
    50: '#6a71a6',
    500: '#223c81',
    950: '#000000',
  },
}

SCSS

$custom: #223c81;
$custom-light: #6a71a6;
$custom-dark: #000000;

JSON

{
  "hex": "#223c81",
  "rgb": {
    "r": 34,
    "g": 60,
    "b": 129
  },
  "hsl": {
    "h": 223.579,
    "s": 58.282,
    "l": 31.961
  },
  "oklch": {
    "l": 0.37776,
    "c": 0.12085,
    "h": 265.4
  },
  "luminance": 0.05157
}

Semantic roles & 50–950 ramp

primary

#223C81

secondary

#B3974B

accent

#B746E1

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #223C81

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

Preview Lab → · Contrast checker → · Palette generator →