#223DA8#223DA8

#223DA8 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.4% C 0.174 H 267.1°. Best body text is #FFFFFF at 9.13:1 contrast (WCAG AA passes).

Color values

HEX	#223DA8
RGB	rgb(34, 61, 168)
HSL	hsl(228, 66%, 40%)
HSV	hsv(228, 80%, 66%)
CMYK	cmyk(79.8%, 63.7%, 0%, 34.1%)
CIE-LAB	lab(30.65, 30.10, -60.13)
CIE-LCH	lch(30.65, 67.25, 296.59°)
OKLab	oklab(41.38% -0.0089 -0.174)
OKLCH	oklch(41.38% 0.174 267.1)
XYZ	xyz(9.3938, 6.5036, 37.7984)
Luminance	0.0650 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223DA8 #A88D22

analogous

#2280A8 #223DA8 #4A22A8

triadic

#223DA8 #A8223D #3DA822

tetradic

#223DA8 #A82280 #A88D22 #22A84A

square

#223DA8 #A82280 #A88D22 #22A84A

split-complementary

#223DA8 #A84A22 #80A822

monochromatic

#0D1842 #182B75 #223DA8 #3253D5 #657DE0

Accessibility & contrast

On white

9.13

#223DA8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#223DA8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223DA8

9.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223DA8	#FFFFFF	#000000	##FFFFFF
##223DA8	1.00	9.13	2.30	9.13
#FFFFFF	9.13	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FAB

Deuteranopia (green-blind)

#0042A6

Tritanopia (blue-blind)

#00596C

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #223da8;
/* rgb */ color: rgb(34, 61, 168);
/* oklch */ color: oklch(41.4% 0.174 267.1);

Tailwind

colors: {
  custom: {
    50: '#7472c3',
    500: '#223da8',
    950: '#000000',
  },
}

SCSS

$custom: #223da8;
$custom-light: #7472c3;
$custom-dark: #000000;

JSON

{
  "hex": "#223da8",
  "rgb": {
    "r": 34,
    "g": 61,
    "b": 168
  },
  "hsl": {
    "h": 227.91,
    "s": 66.337,
    "l": 39.608
  },
  "oklch": {
    "l": 0.41377,
    "c": 0.17422,
    "h": 267.1
  },
  "luminance": 0.06505
}

Semantic roles & 50–950 ramp

primary

#223DA8

secondary

#C5B161

accent

#C73FE9

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #223DA8

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

Preview Lab → · Contrast checker → · Palette generator →