#223C78#223C78

#223C78 is a dark, moderate blue. Relative luminance 0.049; OKLCH L 37.1% C 0.107 H 264.2°. Best body text is #FFFFFF at 10.58:1 contrast (WCAG AA passes).

Color values

HEX	#223C78
RGB	rgb(34, 60, 120)
HSL	hsl(222, 56%, 30%)
HSV	hsv(222, 72%, 47%)
CMYK	cmyk(71.7%, 50%, 0%, 52.9%)
CIE-LAB	lab(26.53, 12.00, -37.29)
CIE-LCH	lch(26.53, 39.17, 287.84°)
OKLab	oklab(37.08% -0.0108 -0.1069)
OKLCH	oklch(37.08% 0.107 264.2)
XYZ	xyz(5.6645, 4.9273, 18.4182)
Luminance	0.0493 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223C78 #785E22

analogous

#226778 #223C78 #332278

triadic

#223C78 #78223C #3C7822

tetradic

#223C78 #782267 #785E22 #227833

square

#223C78 #782267 #785E22 #227833

split-complementary

#223C78 #783322 #677822

monochromatic

#070C19 #142448 #223C78 #3054A8 #4970CB

Accessibility & contrast

On white

10.58

#223C78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#223C78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223C78

10.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223C78	#FFFFFF	#000000	##FFFFFF
##223C78	1.00	10.58	1.99	10.58
#FFFFFF	10.58	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C437A

Deuteranopia (green-blind)

#063B77

Tritanopia (blue-blind)

#004A54

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #223c78;
/* rgb */ color: rgb(34, 60, 120);
/* oklch */ color: oklch(37.1% 0.107 264.2);

Tailwind

colors: {
  custom: {
    50: '#68719f',
    500: '#223c78',
    950: '#000000',
  },
}

SCSS

$custom: #223c78;
$custom-light: #68719f;
$custom-dark: #000000;

JSON

{
  "hex": "#223c78",
  "rgb": {
    "r": 34,
    "g": 60,
    "b": 120
  },
  "hsl": {
    "h": 221.86,
    "s": 55.844,
    "l": 30.196
  },
  "oklch": {
    "l": 0.37075,
    "c": 0.10744,
    "h": 264.2
  },
  "luminance": 0.04928
}

Semantic roles & 50–950 ramp

primary

#223C78

secondary

#AB8E4B

accent

#B249DF

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #223C78

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

Preview Lab → · Contrast checker → · Palette generator →