#223A8B#223A8B

#223A8B is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.2% C 0.138 H 267.0°. Best body text is #FFFFFF at 10.26:1 contrast (WCAG AA passes).

Color values

HEX	#223A8B
RGB	rgb(34, 58, 139)
HSL	hsl(226, 61%, 34%)
HSV	hsv(226, 76%, 55%)
CMYK	cmyk(75.5%, 58.3%, 0%, 45.5%)
CIE-LAB	lab(27.38, 20.91, -47.79)
CIE-LCH	lch(27.38, 52.17, 293.63°)
OKLab	oklab(38.17% -0.0072 -0.1378)
OKLCH	oklch(38.17% 0.138 267)
XYZ	xyz(6.8313, 5.2295, 25.0705)
Luminance	0.0523 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223A8B #8B7322

analogous

#226F8B #223A8B #3F228B

triadic

#223A8B #8B223A #3A8B22

tetradic

#223A8B #8B226F #8B7322 #228B3F

square

#223A8B #8B226F #8B7322 #228B3F

split-complementary

#223A8B #8B3F22 #6F8B22

monochromatic

#0A1129 #16255A #223A8B #2E4FBC #5370D5

Accessibility & contrast

On white

10.26

#223A8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#223A8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223A8B

10.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223A8B	#FFFFFF	#000000	##FFFFFF
##223A8B	1.00	10.26	2.05	10.26
#FFFFFF	10.26	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00468E

Deuteranopia (green-blind)

#003C89

Tritanopia (blue-blind)

#004E5C

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #223a8b;
/* rgb */ color: rgb(34, 58, 139);
/* oklch */ color: oklch(38.2% 0.138 267.0);

Tailwind

colors: {
  custom: {
    50: '#6d6fae',
    500: '#223a8b',
    950: '#000000',
  },
}

SCSS

$custom: #223a8b;
$custom-light: #6d6fae;
$custom-dark: #000000;

JSON

{
  "hex": "#223a8b",
  "rgb": {
    "r": 34,
    "g": 58,
    "b": 139
  },
  "hsl": {
    "h": 226.286,
    "s": 60.694,
    "l": 33.922
  },
  "oklch": {
    "l": 0.38175,
    "c": 0.13801,
    "h": 267
  },
  "luminance": 0.0523
}

Semantic roles & 50–950 ramp

primary

#223A8B

secondary

#B8A150

accent

#BF44E4

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #223A8B

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

Preview Lab → · Contrast checker → · Palette generator →