#223FAF#223FAF

#223FAF is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.4% C 0.181 H 266.8°. Best body text is #FFFFFF at 8.76:1 contrast (WCAG AA passes).

Color values

HEX	#223FAF
RGB	rgb(34, 63, 175)
HSL	hsl(228, 67%, 41%)
HSV	hsv(228, 81%, 69%)
CMYK	cmyk(80.6%, 64%, 0%, 31.4%)
CIE-LAB	lab(31.78, 31.43, -62.46)
CIE-LCH	lch(31.78, 69.93, 296.71°)
OKLab	oklab(42.41% -0.0102 -0.1808)
OKLCH	oklch(42.41% 0.181 266.8)
XYZ	xyz(10.1723, 6.9890, 41.3620)
Luminance	0.0699 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223FAF #AF9222

analogous

#2285AF #223FAF #4C22AF

triadic

#223FAF #AF223F #3FAF22

tetradic

#223FAF #AF2285 #AF9222 #22AF4C

square

#223FAF #AF2285 #AF9222 #22AF4C

split-complementary

#223FAF #AF4C22 #85AF22

monochromatic

#0E1A49 #182D7C #223FAF #3657D8 #6982E2

Accessibility & contrast

On white

8.76

#223FAF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#223FAF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223FAF

8.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223FAF	#FFFFFF	#000000	##FFFFFF
##223FAF	1.00	8.76	2.40	8.76
#FFFFFF	8.76	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052B3

Deuteranopia (green-blind)

#0044AD

Tritanopia (blue-blind)

#005D71

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #223faf;
/* rgb */ color: rgb(34, 63, 175);
/* oklch */ color: oklch(42.4% 0.181 266.8);

Tailwind

colors: {
  custom: {
    50: '#7673c8',
    500: '#223faf',
    950: '#000000',
  },
}

SCSS

$custom: #223faf;
$custom-light: #7673c8;
$custom-dark: #000000;

JSON

{
  "hex": "#223faf",
  "rgb": {
    "r": 34,
    "g": 63,
    "b": 175
  },
  "hsl": {
    "h": 227.66,
    "s": 67.464,
    "l": 40.98
  },
  "oklch": {
    "l": 0.42405,
    "c": 0.18108,
    "h": 266.8
  },
  "luminance": 0.0699
}

Semantic roles & 50–950 ramp

primary

#223FAF

secondary

#C8B365

accent

#C73DEA

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #223FAF

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

Preview Lab → · Contrast checker → · Palette generator →