#223F79#223F79

#223F79 is a dark, moderate blue. Relative luminance 0.053; OKLCH L 37.8% C 0.105 H 262.5°. Best body text is #FFFFFF at 10.22:1 contrast (WCAG AA passes).

Color values

HEX	#223F79
RGB	rgb(34, 63, 121)
HSL	hsl(220, 56%, 30%)
HSV	hsv(220, 72%, 47%)
CMYK	cmyk(71.9%, 47.9%, 0%, 52.5%)
CIE-LAB	lab(27.50, 10.31, -36.35)
CIE-LCH	lch(27.50, 37.78, 285.84°)
OKLab	oklab(37.85% -0.0137 -0.1041)
OKLCH	oklch(37.85% 0.105 262.5)
XYZ	xyz(5.8872, 5.2750, 18.7934)
Luminance	0.0528 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223F79 #795C22

analogous

#226A79 #223F79 #302279

triadic

#223F79 #79223F #3F7922

tetradic

#223F79 #79226A #795C22 #227930

square

#223F79 #79226A #795C22 #227930

split-complementary

#223F79 #793022 #6A7922

monochromatic

#070D19 #152649 #223F79 #2F58A9 #4975CC

Accessibility & contrast

On white

10.22

#223F79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#223F79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223F79

10.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223F79	#FFFFFF	#000000	##FFFFFF
##223F79	1.00	10.22	2.06	10.22
#FFFFFF	10.22	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#21457B

Deuteranopia (green-blind)

#103D78

Tritanopia (blue-blind)

#004C56

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #223f79;
/* rgb */ color: rgb(34, 63, 121);
/* oklch */ color: oklch(37.8% 0.105 262.5);

Tailwind

colors: {
  custom: {
    50: '#6873a0',
    500: '#223f79',
    950: '#000000',
  },
}

SCSS

$custom: #223f79;
$custom-light: #6873a0;
$custom-dark: #000000;

JSON

{
  "hex": "#223f79",
  "rgb": {
    "r": 34,
    "g": 63,
    "b": 121
  },
  "hsl": {
    "h": 220,
    "s": 56.129,
    "l": 30.392
  },
  "oklch": {
    "l": 0.37846,
    "c": 0.10497,
    "h": 262.5
  },
  "luminance": 0.05276
}

Semantic roles & 50–950 ramp

primary

#223F79

secondary

#AC8C4B

accent

#AD48DF

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07080F

muted

#7A7B7E

Preview Lab

Preview with #223F79

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

Preview Lab → · Contrast checker → · Palette generator →