#223F78#223F78

#223F78 is a dark, moderate blue. Relative luminance 0.053; OKLCH L 37.8% C 0.103 H 262.3°. Best body text is #FFFFFF at 10.24:1 contrast (WCAG AA passes).

Color values

HEX	#223F78
RGB	rgb(34, 63, 120)
HSL	hsl(220, 56%, 30%)
HSV	hsv(220, 72%, 47%)
CMYK	cmyk(71.7%, 47.5%, 0%, 52.9%)
CIE-LAB	lab(27.44, 9.92, -35.83)
CIE-LCH	lch(27.44, 37.17, 285.47°)
OKLab	oklab(37.77% -0.0139 -0.1025)
OKLCH	oklch(37.77% 0.103 262.3)
XYZ	xyz(5.8262, 5.2506, 18.4721)
Luminance	0.0525 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223F78 #785B22

analogous

#226A78 #223F78 #302278

triadic

#223F78 #78223F #3F7822

tetradic

#223F78 #78226A #785B22 #227830

square

#223F78 #78226A #785B22 #227830

split-complementary

#223F78 #783022 #6A7822

monochromatic

#070D19 #142648 #223F78 #3058A8 #4975CB

Accessibility & contrast

On white

10.24

#223F78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#223F78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223F78

10.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223F78	#FFFFFF	#000000	##FFFFFF
##223F78	1.00	10.24	2.05	10.24
#FFFFFF	10.24	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#22457A

Deuteranopia (green-blind)

#123D77

Tritanopia (blue-blind)

#004C55

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #223f78;
/* rgb */ color: rgb(34, 63, 120);
/* oklch */ color: oklch(37.8% 0.103 262.3);

Tailwind

colors: {
  custom: {
    50: '#68739f',
    500: '#223f78',
    950: '#000000',
  },
}

SCSS

$custom: #223f78;
$custom-light: #68739f;
$custom-dark: #000000;

JSON

{
  "hex": "#223f78",
  "rgb": {
    "r": 34,
    "g": 63,
    "b": 120
  },
  "hsl": {
    "h": 219.767,
    "s": 55.844,
    "l": 30.196
  },
  "oklch": {
    "l": 0.37773,
    "c": 0.10346,
    "h": 262.3
  },
  "luminance": 0.05251
}

Semantic roles & 50–950 ramp

primary

#223F78

secondary

#AB8B4B

accent

#AC49DF

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07080E

muted

#7A7B7E

Preview Lab

Preview with #223F78

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

Preview Lab → · Contrast checker → · Palette generator →