#223781#223781

#223781 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 36.7% C 0.128 H 267.6°. Best body text is #FFFFFF at 10.87:1 contrast (WCAG AA passes).

Color values

HEX	#223781
RGB	rgb(34, 55, 129)
HSL	hsl(227, 58%, 32%)
HSV	hsv(227, 74%, 51%)
CMYK	cmyk(73.6%, 57.4%, 0%, 49.4%)
CIE-LAB	lab(25.73, 19.06, -44.23)
CIE-LCH	lch(25.73, 48.16, 293.31°)
OKLab	oklab(36.69% -0.0052 -0.1274)
OKLCH	oklch(36.69% 0.128 267.6)
XYZ	xyz(5.9870, 4.6568, 21.3480)
Luminance	0.0466 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223781 #816C22

analogous

#226781 #223781 #3D2281

triadic

#223781 #812237 #378122

tetradic

#223781 #812267 #816C22 #22813D

square

#223781 #812267 #816C22 #22813D

split-complementary

#223781 #813D22 #678122

monochromatic

#080E20 #152251 #223781 #2F4CB1 #4D6AD0

Accessibility & contrast

On white

10.87

#223781 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#223781 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223781

10.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223781	#FFFFFF	#000000	##FFFFFF
##223781	1.00	10.87	1.93	10.87
#FFFFFF	10.87	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004184

Deuteranopia (green-blind)

#003980

Tritanopia (blue-blind)

#004956

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #223781;
/* rgb */ color: rgb(34, 55, 129);
/* oklch */ color: oklch(36.7% 0.128 267.6);

Tailwind

colors: {
  custom: {
    50: '#6b6da6',
    500: '#223781',
    950: '#000000',
  },
}

SCSS

$custom: #223781;
$custom-light: #6b6da6;
$custom-dark: #000000;

JSON

{
  "hex": "#223781",
  "rgb": {
    "r": 34,
    "g": 55,
    "b": 129
  },
  "hsl": {
    "h": 226.737,
    "s": 58.282,
    "l": 31.961
  },
  "oklch": {
    "l": 0.36687,
    "c": 0.12752,
    "h": 267.6
  },
  "luminance": 0.04657
}

Semantic roles & 50–950 ramp

primary

#223781

secondary

#B39C4B

accent

#BF46E1

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #223781

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

Preview Lab → · Contrast checker → · Palette generator →