#223B72#223B72

#223B72 is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.4% C 0.100 H 263.8°. Best body text is #FFFFFF at 10.84:1 contrast (WCAG AA passes).

Color values

HEX	#223B72
RGB	rgb(34, 59, 114)
HSL	hsl(221, 54%, 29%)
HSV	hsv(221, 70%, 45%)
CMYK	cmyk(70.2%, 48.2%, 0%, 55.3%)
CIE-LAB	lab(25.81, 10.32, -34.63)
CIE-LCH	lch(25.81, 36.14, 286.60°)
OKLab	oklab(36.39% -0.0108 -0.0991)
OKLCH	oklch(36.39% 0.1 263.8)
XYZ	xyz(5.2598, 4.6824, 16.5429)
Luminance	0.0468 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223B72 #725922

analogous

#226372 #223B72 #312272

triadic

#223B72 #72223B #3B7222

tetradic

#223B72 #722263 #725922 #227231

square

#223B72 #722263 #725922 #227231

split-complementary

#223B72 #723122 #637222

monochromatic

#070C18 #142343 #223B72 #3053A1 #466FC8

Accessibility & contrast

On white

10.84

#223B72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#223B72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223B72

10.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223B72	#FFFFFF	#000000	##FFFFFF
##223B72	1.00	10.84	1.94	10.84
#FFFFFF	10.84	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F4174

Deuteranopia (green-blind)

#103A71

Tritanopia (blue-blind)

#004851

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #223b72;
/* rgb */ color: rgb(34, 59, 114);
/* oklch */ color: oklch(36.4% 0.100 263.8);

Tailwind

colors: {
  custom: {
    50: '#67709b',
    500: '#223b72',
    950: '#000000',
  },
}

SCSS

$custom: #223b72;
$custom-light: #67709b;
$custom-dark: #000000;

JSON

{
  "hex": "#223b72",
  "rgb": {
    "r": 34,
    "g": 59,
    "b": 114
  },
  "hsl": {
    "h": 221.25,
    "s": 54.054,
    "l": 29.02
  },
  "oklch": {
    "l": 0.36394,
    "c": 0.09969,
    "h": 263.8
  },
  "luminance": 0.04683
}

Semantic roles & 50–950 ramp

primary

#223B72

secondary

#A5894B

accent

#AF4ADD

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #223B72

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

Preview Lab → · Contrast checker → · Palette generator →