#223B73#223B73

#223B73 is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.5% C 0.101 H 264.0°. Best body text is #FFFFFF at 10.82:1 contrast (WCAG AA passes).

Color values

HEX	#223B73
RGB	rgb(34, 59, 115)
HSL	hsl(221, 54%, 29%)
HSV	hsv(221, 70%, 45%)
CMYK	cmyk(70.4%, 48.7%, 0%, 54.9%)
CIE-LAB	lab(25.88, 10.72, -35.16)
CIE-LCH	lch(25.88, 36.76, 286.95°)
OKLab	oklab(36.47% -0.0106 -0.1006)
OKLCH	oklch(36.47% 0.101 264)
XYZ	xyz(5.3171, 4.7053, 16.8443)
Luminance	0.0471 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223B73 #735A22

analogous

#226473 #223B73 #322273

triadic

#223B73 #73223B #3B7322

tetradic

#223B73 #732264 #735A22 #227332

square

#223B73 #732264 #735A22 #227332

split-complementary

#223B73 #733222 #647322

monochromatic

#070C18 #142344 #223B73 #3053A2 #476FC9

Accessibility & contrast

On white

10.82

#223B73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#223B73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223B73

10.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223B73	#FFFFFF	#000000	##FFFFFF
##223B73	1.00	10.82	1.94	10.82
#FFFFFF	10.82	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F4175

Deuteranopia (green-blind)

#0E3A72

Tritanopia (blue-blind)

#004851

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #223b73;
/* rgb */ color: rgb(34, 59, 115);
/* oklch */ color: oklch(36.5% 0.101 264.0);

Tailwind

colors: {
  custom: {
    50: '#67709c',
    500: '#223b73',
    950: '#000000',
  },
}

SCSS

$custom: #223b73;
$custom-light: #67709c;
$custom-dark: #000000;

JSON

{
  "hex": "#223b73",
  "rgb": {
    "r": 34,
    "g": 59,
    "b": 115
  },
  "hsl": {
    "h": 221.481,
    "s": 54.362,
    "l": 29.216
  },
  "oklch": {
    "l": 0.36468,
    "c": 0.10121,
    "h": 264
  },
  "luminance": 0.04706
}

Semantic roles & 50–950 ramp

primary

#223B73

secondary

#A68A4B

accent

#B04ADE

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #223B73

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

Preview Lab → · Contrast checker → · Palette generator →