#223B78#223B78

#223B78 is a dark, moderate blue. Relative luminance 0.048; OKLCH L 36.8% C 0.109 H 264.8°. Best body text is #FFFFFF at 10.69:1 contrast (WCAG AA passes).

Color values

HEX	#223B78
RGB	rgb(34, 59, 120)
HSL	hsl(223, 56%, 30%)
HSV	hsv(223, 72%, 47%)
CMYK	cmyk(71.7%, 50.8%, 0%, 52.9%)
CIE-LAB	lab(26.23, 12.70, -37.77)
CIE-LCH	lch(26.23, 39.85, 288.58°)
OKLab	oklab(36.85% -0.0098 -0.1083)
OKLCH	oklch(36.85% 0.109 264.8)
XYZ	xyz(5.6126, 4.8235, 18.4009)
Luminance	0.0482 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223B78 #785F22

analogous

#226678 #223B78 #342278

triadic

#223B78 #78223B #3B7822

tetradic

#223B78 #782266 #785F22 #227834

square

#223B78 #782266 #785F22 #227834

split-complementary

#223B78 #783422 #667822

monochromatic

#070C19 #142448 #223B78 #3052A8 #496FCB

Accessibility & contrast

On white

10.69

#223B78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#223B78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223B78

10.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223B78	#FFFFFF	#000000	##FFFFFF
##223B78	1.00	10.69	1.96	10.69
#FFFFFF	10.69	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#19427A

Deuteranopia (green-blind)

#023A77

Tritanopia (blue-blind)

#004953

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #223b78;
/* rgb */ color: rgb(34, 59, 120);
/* oklch */ color: oklch(36.8% 0.109 264.8);

Tailwind

colors: {
  custom: {
    50: '#68709f',
    500: '#223b78',
    950: '#000000',
  },
}

SCSS

$custom: #223b78;
$custom-light: #68709f;
$custom-dark: #000000;

JSON

{
  "hex": "#223b78",
  "rgb": {
    "r": 34,
    "g": 59,
    "b": 120
  },
  "hsl": {
    "h": 222.558,
    "s": 55.844,
    "l": 30.196
  },
  "oklch": {
    "l": 0.36845,
    "c": 0.10878,
    "h": 264.8
  },
  "luminance": 0.04824
}

Semantic roles & 50–950 ramp

primary

#223B78

secondary

#AB8F4B

accent

#B349DF

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #223B78

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

Preview Lab → · Contrast checker → · Palette generator →