#223FA9#223FA9

#223FA9 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 41.8% C 0.173 H 266.7°. Best body text is #FFFFFF at 8.93:1 contrast (WCAG AA passes).

Color values

HEX	#223FA9
RGB	rgb(34, 63, 169)
HSL	hsl(227, 67%, 40%)
HSV	hsv(227, 80%, 66%)
CMYK	cmyk(79.9%, 62.7%, 0%, 33.7%)
CIE-LAB	lab(31.25, 29.15, -59.75)
CIE-LCH	lch(31.25, 66.48, 296.01°)
OKLab	oklab(41.85% -0.0101 -0.1728)
OKLCH	oklch(41.85% 0.173 266.7)
XYZ	xyz(9.5961, 6.7586, 38.3272)
Luminance	0.0676 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223FA9 #A98C22

analogous

#2283A9 #223FA9 #4922A9

triadic

#223FA9 #A9223F #3FA922

tetradic

#223FA9 #A92283 #A98C22 #22A949

square

#223FA9 #A92283 #A98C22 #22A949

split-complementary

#223FA9 #A94922 #83A922

monochromatic

#0D1943 #182C76 #223FA9 #3255D6 #6580E0

Accessibility & contrast

On white

8.93

#223FA9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#223FA9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223FA9

8.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223FA9	#FFFFFF	#000000	##FFFFFF
##223FA9	1.00	8.93	2.35	8.93
#FFFFFF	8.93	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050AC

Deuteranopia (green-blind)

#0043A7

Tritanopia (blue-blind)

#005B6E

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #223fa9;
/* rgb */ color: rgb(34, 63, 169);
/* oklch */ color: oklch(41.8% 0.173 266.7);

Tailwind

colors: {
  custom: {
    50: '#7473c3',
    500: '#223fa9',
    950: '#000000',
  },
}

SCSS

$custom: #223fa9;
$custom-light: #7473c3;
$custom-dark: #000000;

JSON

{
  "hex": "#223fa9",
  "rgb": {
    "r": 34,
    "g": 63,
    "b": 169
  },
  "hsl": {
    "h": 227.111,
    "s": 66.502,
    "l": 39.804
  },
  "oklch": {
    "l": 0.41849,
    "c": 0.17313,
    "h": 266.7
  },
  "luminance": 0.0676
}

Semantic roles & 50–950 ramp

primary

#223FA9

secondary

#C5B061

accent

#C53EE9

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #223FA9

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

Preview Lab → · Contrast checker → · Palette generator →