#223F88#223F88

#223F88 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.0% C 0.127 H 264.8°. Best body text is #FFFFFF at 9.84:1 contrast (WCAG AA passes).

Color values

HEX	#223F88
RGB	rgb(34, 63, 136)
HSL	hsl(223, 60%, 33%)
HSV	hsv(223, 75%, 53%)
CMYK	cmyk(75%, 53.7%, 0%, 46.7%)
CIE-LAB	lab(28.57, 16.27, -44.00)
CIE-LCH	lch(28.57, 46.91, 290.29°)
OKLab	oklab(39% -0.0116 -0.1266)
OKLCH	oklch(39% 0.127 264.8)
XYZ	xyz(6.8796, 5.6719, 24.0200)
Luminance	0.0567 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223F88 #886B22

analogous

#227288 #223F88 #382288

triadic

#223F88 #88223F #3F8822

tetradic

#223F88 #882272 #886B22 #228838

square

#223F88 #882272 #886B22 #228838

split-complementary

#223F88 #883822 #728822

monochromatic

#0A1226 #162857 #223F88 #2E56B9 #5176D3

Accessibility & contrast

On white

9.84

#223F88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#223F88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223F88

9.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223F88	#FFFFFF	#000000	##FFFFFF
##223F88	1.00	9.84	2.13	9.84
#FFFFFF	9.84	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E488B

Deuteranopia (green-blind)

#003F87

Tritanopia (blue-blind)

#00515D

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #223f88;
/* rgb */ color: rgb(34, 63, 136);
/* oklch */ color: oklch(39.0% 0.127 264.8);

Tailwind

colors: {
  custom: {
    50: '#6c73ab',
    500: '#223f88',
    950: '#000000',
  },
}

SCSS

$custom: #223f88;
$custom-light: #6c73ab;
$custom-dark: #000000;

JSON

{
  "hex": "#223f88",
  "rgb": {
    "r": 34,
    "g": 63,
    "b": 136
  },
  "hsl": {
    "h": 222.941,
    "s": 60,
    "l": 33.333
  },
  "oklch": {
    "l": 0.39,
    "c": 0.12712,
    "h": 264.8
  },
  "luminance": 0.05673
}

Semantic roles & 50–950 ramp

primary

#223F88

secondary

#B7994F

accent

#B645E3

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#080810

muted

#7A7B7F

Preview Lab

Preview with #223F88

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

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