#223D79#223D79

#223D79 is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.4% C 0.108 H 263.8°. Best body text is #FFFFFF at 10.44:1 contrast (WCAG AA passes).

Color values

HEX	#223D79
RGB	rgb(34, 61, 121)
HSL	hsl(221, 56%, 30%)
HSV	hsv(221, 72%, 47%)
CMYK	cmyk(71.9%, 49.6%, 0%, 52.5%)
CIE-LAB	lab(26.90, 11.70, -37.32)
CIE-LCH	lch(26.90, 39.11, 287.40°)
OKLab	oklab(37.38% -0.0117 -0.107)
OKLCH	oklch(37.38% 0.108 263.8)
XYZ	xyz(5.7784, 5.0575, 18.7571)
Luminance	0.0506 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223D79 #795E22

analogous

#226879 #223D79 #322279

triadic

#223D79 #79223D #3D7922

tetradic

#223D79 #792268 #795E22 #227932

square

#223D79 #792268 #795E22 #227932

split-complementary

#223D79 #793222 #687922

monochromatic

#070D19 #152549 #223D79 #2F55A9 #4972CC

Accessibility & contrast

On white

10.44

#223D79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#223D79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223D79

10.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223D79	#FFFFFF	#000000	##FFFFFF
##223D79	1.00	10.44	2.01	10.44
#FFFFFF	10.44	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D447B

Deuteranopia (green-blind)

#083C78

Tritanopia (blue-blind)

#004B55

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #223d79;
/* rgb */ color: rgb(34, 61, 121);
/* oklch */ color: oklch(37.4% 0.108 263.8);

Tailwind

colors: {
  custom: {
    50: '#6972a0',
    500: '#223d79',
    950: '#000000',
  },
}

SCSS

$custom: #223d79;
$custom-light: #6972a0;
$custom-dark: #000000;

JSON

{
  "hex": "#223d79",
  "rgb": {
    "r": 34,
    "g": 61,
    "b": 121
  },
  "hsl": {
    "h": 221.379,
    "s": 56.129,
    "l": 30.392
  },
  "oklch": {
    "l": 0.37381,
    "c": 0.1076,
    "h": 263.8
  },
  "luminance": 0.05058
}

Semantic roles & 50–950 ramp

primary

#223D79

secondary

#AC8E4B

accent

#B148DF

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070F

muted

#7A7A7E

Preview Lab

Preview with #223D79

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

Preview Lab → · Contrast checker → · Palette generator →