#223EB3#223EB3

#223EB3 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.6% C 0.187 H 267.0°. Best body text is #FFFFFF at 8.72:1 contrast (WCAG AA passes).

Color values

HEX	#223EB3
RGB	rgb(34, 62, 179)
HSL	hsl(228, 68%, 42%)
HSV	hsv(228, 81%, 70%)
CMYK	cmyk(81%, 65.4%, 0%, 29.8%)
CIE-LAB	lab(31.90, 33.59, -64.66)
CIE-LCH	lch(31.90, 72.86, 297.45°)
OKLab	oklab(42.6% -0.0098 -0.1872)
OKLCH	oklch(42.6% 0.187 267)
XYZ	xyz(10.5162, 7.0388, 43.4435)
Luminance	0.0704 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223EB3 #B39722

analogous

#2287B3 #223EB3 #4F22B3

triadic

#223EB3 #B3223E #3EB322

tetradic

#223EB3 #B32287 #B39722 #22B34F

square

#223EB3 #B32287 #B39722 #22B34F

split-complementary

#223EB3 #B34F22 #87B322

monochromatic

#0E1A4C #182C80 #223EB3 #3958D9 #6C83E3

Accessibility & contrast

On white

8.72

#223EB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#223EB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223EB3

8.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223EB3	#FFFFFF	#000000	##FFFFFF
##223EB3	1.00	8.72	2.41	8.72
#FFFFFF	8.72	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052B7

Deuteranopia (green-blind)

#0044B1

Tritanopia (blue-blind)

#005D73

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #223eb3;
/* rgb */ color: rgb(34, 62, 179);
/* oklch */ color: oklch(42.6% 0.187 267.0);

Tailwind

colors: {
  custom: {
    50: '#7773cb',
    500: '#223eb3',
    950: '#000000',
  },
}

SCSS

$custom: #223eb3;
$custom-light: #7773cb;
$custom-dark: #000000;

JSON

{
  "hex": "#223eb3",
  "rgb": {
    "r": 34,
    "g": 62,
    "b": 179
  },
  "hsl": {
    "h": 228.414,
    "s": 68.075,
    "l": 41.765
  },
  "oklch": {
    "l": 0.42599,
    "c": 0.18747,
    "h": 267
  },
  "luminance": 0.0704
}

Semantic roles & 50–950 ramp

primary

#223EB3

secondary

#C9B668

accent

#C93DEB

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #223EB3

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

Preview Lab → · Contrast checker → · Palette generator →