#223DA6#223DA6

#223DA6 is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.2% C 0.172 H 267.0°. Best body text is #FFFFFF at 9.19:1 contrast (WCAG AA passes).

Color values

HEX	#223DA6
RGB	rgb(34, 61, 166)
HSL	hsl(228, 66%, 39%)
HSV	hsv(228, 80%, 65%)
CMYK	cmyk(79.5%, 63.3%, 0%, 34.9%)
CIE-LAB	lab(30.47, 29.34, -59.22)
CIE-LCH	lch(30.47, 66.09, 296.35°)
OKLab	oklab(41.19% -0.0089 -0.1713)
OKLCH	oklch(41.19% 0.172 267)
XYZ	xyz(9.2090, 6.4297, 36.8247)
Luminance	0.0643 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223DA6 #A68B22

analogous

#227FA6 #223DA6 #4922A6

triadic

#223DA6 #A6223D #3DA622

tetradic

#223DA6 #A6227F #A68B22 #22A649

square

#223DA6 #A6227F #A68B22 #22A649

split-complementary

#223DA6 #A64922 #7FA622

monochromatic

#0D1840 #182A73 #223DA6 #3052D5 #637DDF

Accessibility & contrast

On white

9.19

#223DA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#223DA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223DA6

9.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223DA6	#FFFFFF	#000000	##FFFFFF
##223DA6	1.00	9.19	2.29	9.19
#FFFFFF	9.19	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA9

Deuteranopia (green-blind)

#0042A4

Tritanopia (blue-blind)

#00586B

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #223da6;
/* rgb */ color: rgb(34, 61, 166);
/* oklch */ color: oklch(41.2% 0.172 267.0);

Tailwind

colors: {
  custom: {
    50: '#7472c1',
    500: '#223da6',
    950: '#000000',
  },
}

SCSS

$custom: #223da6;
$custom-light: #7472c1;
$custom-dark: #000000;

JSON

{
  "hex": "#223da6",
  "rgb": {
    "r": 34,
    "g": 61,
    "b": 166
  },
  "hsl": {
    "h": 227.727,
    "s": 66,
    "l": 39.216
  },
  "oklch": {
    "l": 0.41191,
    "c": 0.17155,
    "h": 267
  },
  "luminance": 0.06431
}

Semantic roles & 50–950 ramp

primary

#223DA6

secondary

#C4B05F

accent

#C63FE9

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #223DA6

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

Preview Lab → · Contrast checker → · Palette generator →