#223C79#223C79

#223C79 is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.2% C 0.109 H 264.4°. Best body text is #FFFFFF at 10.55:1 contrast (WCAG AA passes).

Color values

HEX	#223C79
RGB	rgb(34, 60, 121)
HSL	hsl(222, 56%, 30%)
HSV	hsv(222, 72%, 47%)
CMYK	cmyk(71.9%, 50.4%, 0%, 52.5%)
CIE-LAB	lab(26.60, 12.40, -37.81)
CIE-LCH	lch(26.60, 39.79, 288.15°)
OKLab	oklab(37.15% -0.0107 -0.1084)
OKLCH	oklch(37.15% 0.109 264.4)
XYZ	xyz(5.7255, 4.9517, 18.7395)
Luminance	0.0495 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223C79 #795F22

analogous

#226779 #223C79 #332279

triadic

#223C79 #79223C #3C7922

tetradic

#223C79 #792267 #795F22 #227933

square

#223C79 #792267 #795F22 #227933

split-complementary

#223C79 #793322 #677922

monochromatic

#070D19 #152449 #223C79 #2F54A9 #4970CC

Accessibility & contrast

On white

10.55

#223C79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#223C79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223C79

10.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223C79	#FFFFFF	#000000	##FFFFFF
##223C79	1.00	10.55	1.99	10.55
#FFFFFF	10.55	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B437B

Deuteranopia (green-blind)

#043B78

Tritanopia (blue-blind)

#004A54

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #223c79;
/* rgb */ color: rgb(34, 60, 121);
/* oklch */ color: oklch(37.2% 0.109 264.4);

Tailwind

colors: {
  custom: {
    50: '#6971a0',
    500: '#223c79',
    950: '#000000',
  },
}

SCSS

$custom: #223c79;
$custom-light: #6971a0;
$custom-dark: #000000;

JSON

{
  "hex": "#223c79",
  "rgb": {
    "r": 34,
    "g": 60,
    "b": 121
  },
  "hsl": {
    "h": 222.069,
    "s": 56.129,
    "l": 30.392
  },
  "oklch": {
    "l": 0.37151,
    "c": 0.10893,
    "h": 264.4
  },
  "luminance": 0.04952
}

Semantic roles & 50–950 ramp

primary

#223C79

secondary

#AC8F4B

accent

#B248DF

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070F

muted

#7A7A7E

Preview Lab

Preview with #223C79

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

Preview Lab → · Contrast checker → · Palette generator →