#223581#223581

#223581 is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.3% C 0.130 H 268.5°. Best body text is #FFFFFF at 11.09:1 contrast (WCAG AA passes).

Color values

HEX	#223581
RGB	rgb(34, 53, 129)
HSL	hsl(228, 58%, 32%)
HSV	hsv(228, 74%, 51%)
CMYK	cmyk(73.6%, 58.9%, 0%, 49.4%)
CIE-LAB	lab(25.17, 20.45, -45.15)
CIE-LCH	lch(25.17, 49.56, 294.37°)
OKLab	oklab(36.27% -0.0035 -0.1301)
OKLCH	oklch(36.27% 0.13 268.5)
XYZ	xyz(5.8939, 4.4707, 21.3169)
Luminance	0.0447 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223581 #816E22

analogous

#226581 #223581 #3F2281

triadic

#223581 #812235 #358122

tetradic

#223581 #812265 #816E22 #22813F

square

#223581 #812265 #816E22 #22813F

split-complementary

#223581 #813F22 #658122

monochromatic

#080D20 #152151 #223581 #2F49B1 #4D67D0

Accessibility & contrast

On white

11.09

#223581 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#223581 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223581

11.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223581	#FFFFFF	#000000	##FFFFFF
##223581	1.00	11.09	1.89	11.09
#FFFFFF	11.09	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004084

Deuteranopia (green-blind)

#00377F

Tritanopia (blue-blind)

#004855

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #223581;
/* rgb */ color: rgb(34, 53, 129);
/* oklch */ color: oklch(36.3% 0.130 268.5);

Tailwind

colors: {
  custom: {
    50: '#6b6ba6',
    500: '#223581',
    950: '#000000',
  },
}

SCSS

$custom: #223581;
$custom-light: #6b6ba6;
$custom-dark: #000000;

JSON

{
  "hex": "#223581",
  "rgb": {
    "r": 34,
    "g": 53,
    "b": 129
  },
  "hsl": {
    "h": 228,
    "s": 58.282,
    "l": 31.961
  },
  "oklch": {
    "l": 0.36265,
    "c": 0.13018,
    "h": 268.5
  },
  "luminance": 0.04471
}

Semantic roles & 50–950 ramp

primary

#223581

secondary

#B39F4B

accent

#C246E1

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #223581

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

Preview Lab → · Contrast checker → · Palette generator →