#223FA6#223FA6

#223FA6 is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.6% C 0.169 H 266.6°. Best body text is #FFFFFF at 9.01:1 contrast (WCAG AA passes).

Color values

HEX	#223FA6
RGB	rgb(34, 63, 166)
HSL	hsl(227, 66%, 39%)
HSV	hsv(227, 80%, 65%)
CMYK	cmyk(79.5%, 62%, 0%, 34.9%)
CIE-LAB	lab(30.99, 28.00, -58.37)
CIE-LCH	lch(30.99, 64.74, 295.63°)
OKLab	oklab(41.58% -0.0101 -0.1688)
OKLCH	oklch(41.58% 0.169 266.6)
XYZ	xyz(9.3177, 6.6472, 36.8610)
Luminance	0.0665 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223FA6 #A68922

analogous

#2281A6 #223FA6 #4722A6

triadic

#223FA6 #A6223F #3FA622

tetradic

#223FA6 #A62281 #A68922 #22A647

square

#223FA6 #A62281 #A68922 #22A647

split-complementary

#223FA6 #A64722 #81A622

monochromatic

#0D1840 #182C73 #223FA6 #3055D5 #637EDF

Accessibility & contrast

On white

9.01

#223FA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#223FA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223FA6

9.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223FA6	#FFFFFF	#000000	##FFFFFF
##223FA6	1.00	9.01	2.33	9.01
#FFFFFF	9.01	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FA9

Deuteranopia (green-blind)

#0043A4

Tritanopia (blue-blind)

#005A6C

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #223fa6;
/* rgb */ color: rgb(34, 63, 166);
/* oklch */ color: oklch(41.6% 0.169 266.6);

Tailwind

colors: {
  custom: {
    50: '#7373c1',
    500: '#223fa6',
    950: '#000000',
  },
}

SCSS

$custom: #223fa6;
$custom-light: #7373c1;
$custom-dark: #000000;

JSON

{
  "hex": "#223fa6",
  "rgb": {
    "r": 34,
    "g": 63,
    "b": 166
  },
  "hsl": {
    "h": 226.818,
    "s": 66,
    "l": 39.216
  },
  "oklch": {
    "l": 0.41575,
    "c": 0.16911,
    "h": 266.6
  },
  "luminance": 0.06648
}

Semantic roles & 50–950 ramp

primary

#223FA6

secondary

#C4AE5F

accent

#C43FE9

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #223FA6

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

Preview Lab → · Contrast checker → · Palette generator →