#223CA6#223CA6

#223CA6 is a dark, vivid blue. Relative luminance 0.063; OKLCH L 41.0% C 0.173 H 267.3°. Best body text is #FFFFFF at 9.27:1 contrast (WCAG AA passes).

Color values

HEX	#223CA6
RGB	rgb(34, 60, 166)
HSL	hsl(228, 66%, 39%)
HSV	hsv(228, 80%, 65%)
CMYK	cmyk(79.5%, 63.9%, 0%, 34.9%)
CIE-LAB	lab(30.22, 30.00, -59.64)
CIE-LCH	lch(30.22, 66.76, 296.70°)
OKLab	oklab(41% -0.0083 -0.1726)
OKLCH	oklch(41% 0.173 267.3)
XYZ	xyz(9.1561, 6.3239, 36.8071)
Luminance	0.0633 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223CA6 #A68C22

analogous

#227EA6 #223CA6 #4A22A6

triadic

#223CA6 #A6223C #3CA622

tetradic

#223CA6 #A6227E #A68C22 #22A64A

square

#223CA6 #A6227E #A68C22 #22A64A

split-complementary

#223CA6 #A64A22 #7EA622

monochromatic

#0D1740 #182A73 #223CA6 #3051D5 #637CDF

Accessibility & contrast

On white

9.27

#223CA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#223CA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223CA6

9.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223CA6	#FFFFFF	#000000	##FFFFFF
##223CA6	1.00	9.27	2.27	9.27
#FFFFFF	9.27	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA9

Deuteranopia (green-blind)

#0041A4

Tritanopia (blue-blind)

#00586B

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #223ca6;
/* rgb */ color: rgb(34, 60, 166);
/* oklch */ color: oklch(41.0% 0.173 267.3);

Tailwind

colors: {
  custom: {
    50: '#7471c1',
    500: '#223ca6',
    950: '#000000',
  },
}

SCSS

$custom: #223ca6;
$custom-light: #7471c1;
$custom-dark: #000000;

JSON

{
  "hex": "#223ca6",
  "rgb": {
    "r": 34,
    "g": 60,
    "b": 166
  },
  "hsl": {
    "h": 228.182,
    "s": 66,
    "l": 39.216
  },
  "oklch": {
    "l": 0.41001,
    "c": 0.17276,
    "h": 267.3
  },
  "luminance": 0.06325
}

Semantic roles & 50–950 ramp

primary

#223CA6

secondary

#C4B05F

accent

#C73FE9

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #223CA6

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

Preview Lab → · Contrast checker → · Palette generator →