#223788#223788

#223788 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.3% C 0.138 H 268.0°. Best body text is #FFFFFF at 10.66:1 contrast (WCAG AA passes).

Color values

HEX	#223788
RGB	rgb(34, 55, 136)
HSL	hsl(228, 60%, 33%)
HSV	hsv(228, 75%, 53%)
CMYK	cmyk(75%, 59.6%, 0%, 46.7%)
CIE-LAB	lab(26.30, 21.80, -47.68)
CIE-LCH	lch(26.30, 52.43, 294.57°)
OKLab	oklab(37.29% -0.0049 -0.1375)
OKLCH	oklch(37.29% 0.138 268)
XYZ	xyz(6.4683, 4.8493, 23.8829)
Luminance	0.0485 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223788 #887322

analogous

#226A88 #223788 #402288

triadic

#223788 #882237 #378822

tetradic

#223788 #88226A #887322 #228840

square

#223788 #88226A #887322 #228840

split-complementary

#223788 #884022 #6A8822

monochromatic

#0A0F26 #162357 #223788 #2E4BB9 #516CD3

Accessibility & contrast

On white

10.66

#223788 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#223788 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223788

10.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223788	#FFFFFF	#000000	##FFFFFF
##223788	1.00	10.66	1.97	10.66
#FFFFFF	10.66	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00438B

Deuteranopia (green-blind)

#003A86

Tritanopia (blue-blind)

#004B5A

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #223788;
/* rgb */ color: rgb(34, 55, 136);
/* oklch */ color: oklch(37.3% 0.138 268.0);

Tailwind

colors: {
  custom: {
    50: '#6d6dab',
    500: '#223788',
    950: '#000000',
  },
}

SCSS

$custom: #223788;
$custom-light: #6d6dab;
$custom-dark: #000000;

JSON

{
  "hex": "#223788",
  "rgb": {
    "r": 34,
    "g": 55,
    "b": 136
  },
  "hsl": {
    "h": 227.647,
    "s": 60,
    "l": 33.333
  },
  "oklch": {
    "l": 0.37291,
    "c": 0.13764,
    "h": 268
  },
  "luminance": 0.0485
}

Semantic roles & 50–950 ramp

primary

#223788

secondary

#B7A24F

accent

#C345E3

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #223788

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

Preview Lab → · Contrast checker → · Palette generator →