#223D78#223D78

#223D78 is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.3% C 0.106 H 263.6°. Best body text is #FFFFFF at 10.46:1 contrast (WCAG AA passes).

Color values

HEX	#223D78
RGB	rgb(34, 61, 120)
HSL	hsl(221, 56%, 30%)
HSV	hsv(221, 72%, 47%)
CMYK	cmyk(71.7%, 49.2%, 0%, 52.9%)
CIE-LAB	lab(26.83, 11.30, -36.80)
CIE-LCH	lch(26.83, 38.50, 287.07°)
OKLab	oklab(37.31% -0.0118 -0.1054)
OKLCH	oklch(37.31% 0.106 263.6)
XYZ	xyz(5.7174, 5.0331, 18.4358)
Luminance	0.0503 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223D78 #785D22

analogous

#226878 #223D78 #322278

triadic

#223D78 #78223D #3D7822

tetradic

#223D78 #782268 #785D22 #227832

square

#223D78 #782268 #785D22 #227832

split-complementary

#223D78 #783222 #687822

monochromatic

#070D19 #142548 #223D78 #3055A8 #4972CB

Accessibility & contrast

On white

10.46

#223D78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#223D78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223D78

10.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223D78	#FFFFFF	#000000	##FFFFFF
##223D78	1.00	10.46	2.01	10.46
#FFFFFF	10.46	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E447A

Deuteranopia (green-blind)

#0B3C77

Tritanopia (blue-blind)

#004B54

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #223d78;
/* rgb */ color: rgb(34, 61, 120);
/* oklch */ color: oklch(37.3% 0.106 263.6);

Tailwind

colors: {
  custom: {
    50: '#68729f',
    500: '#223d78',
    950: '#000000',
  },
}

SCSS

$custom: #223d78;
$custom-light: #68729f;
$custom-dark: #000000;

JSON

{
  "hex": "#223d78",
  "rgb": {
    "r": 34,
    "g": 61,
    "b": 120
  },
  "hsl": {
    "h": 221.163,
    "s": 55.844,
    "l": 30.196
  },
  "oklch": {
    "l": 0.37306,
    "c": 0.1061,
    "h": 263.6
  },
  "luminance": 0.05034
}

Semantic roles & 50–950 ramp

primary

#223D78

secondary

#AB8D4B

accent

#B049DF

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #223D78

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

Preview Lab → · Contrast checker → · Palette generator →