#223B81#223B81

#223B81 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 37.6% C 0.122 H 265.9°. Best body text is #FFFFFF at 10.44:1 contrast (WCAG AA passes).

Color values

HEX	#223B81
RGB	rgb(34, 59, 129)
HSL	hsl(224, 58%, 32%)
HSV	hsv(224, 74%, 51%)
CMYK	cmyk(73.6%, 54.3%, 0%, 49.4%)
CIE-LAB	lab(26.88, 16.27, -42.37)
CIE-LCH	lch(26.88, 45.39, 291.00°)
OKLab	oklab(37.56% -0.0088 -0.1219)
OKLCH	oklch(37.56% 0.122 265.9)
XYZ	xyz(6.1847, 5.0523, 21.4139)
Luminance	0.0505 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223B81 #816822

analogous

#226A81 #223B81 #392281

triadic

#223B81 #81223B #3B8122

tetradic

#223B81 #81226A #816822 #228139

square

#223B81 #81226A #816822 #228139

split-complementary

#223B81 #813922 #6A8122

monochromatic

#080F20 #152551 #223B81 #2F51B1 #4D70D0

Accessibility & contrast

On white

10.44

#223B81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#223B81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223B81

10.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223B81	#FFFFFF	#000000	##FFFFFF
##223B81	1.00	10.44	2.01	10.44
#FFFFFF	10.44	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B4483

Deuteranopia (green-blind)

#003B80

Tritanopia (blue-blind)

#004C58

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #223b81;
/* rgb */ color: rgb(34, 59, 129);
/* oklch */ color: oklch(37.6% 0.122 265.9);

Tailwind

colors: {
  custom: {
    50: '#6b70a6',
    500: '#223b81',
    950: '#000000',
  },
}

SCSS

$custom: #223b81;
$custom-light: #6b70a6;
$custom-dark: #000000;

JSON

{
  "hex": "#223b81",
  "rgb": {
    "r": 34,
    "g": 59,
    "b": 129
  },
  "hsl": {
    "h": 224.211,
    "s": 58.282,
    "l": 31.961
  },
  "oklch": {
    "l": 0.37555,
    "c": 0.12217,
    "h": 265.9
  },
  "luminance": 0.05053
}

Semantic roles & 50–950 ramp

primary

#223B81

secondary

#B3984B

accent

#B946E1

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #223B81

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

Preview Lab → · Contrast checker → · Palette generator →