#223C8B#223C8B

#223C8B is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.6% C 0.135 H 266.3°. Best body text is #FFFFFF at 10.06:1 contrast (WCAG AA passes).

Color values

HEX	#223C8B
RGB	rgb(34, 60, 139)
HSL	hsl(225, 61%, 34%)
HSV	hsv(225, 76%, 55%)
CMYK	cmyk(75.5%, 56.8%, 0%, 45.5%)
CIE-LAB	lab(27.94, 19.53, -46.88)
CIE-LCH	lch(27.94, 50.78, 292.61°)
OKLab	oklab(38.6% -0.0088 -0.1351)
OKLCH	oklch(38.6% 0.135 266.3)
XYZ	xyz(6.9341, 5.4351, 25.1047)
Luminance	0.0544 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223C8B #8B7122

analogous

#22718B #223C8B #3D228B

triadic

#223C8B #8B223C #3C8B22

tetradic

#223C8B #8B2271 #8B7122 #228B3D

square

#223C8B #8B2271 #8B7122 #228B3D

split-complementary

#223C8B #8B3D22 #718B22

monochromatic

#0A1229 #16275A #223C8B #2E51BC #5373D5

Accessibility & contrast

On white

10.06

#223C8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#223C8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223C8B

10.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223C8B	#FFFFFF	#000000	##FFFFFF
##223C8B	1.00	10.06	2.09	10.06
#FFFFFF	10.06	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00478E

Deuteranopia (green-blind)

#003D89

Tritanopia (blue-blind)

#004F5D

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #223c8b;
/* rgb */ color: rgb(34, 60, 139);
/* oklch */ color: oklch(38.6% 0.135 266.3);

Tailwind

colors: {
  custom: {
    50: '#6d71ae',
    500: '#223c8b',
    950: '#000000',
  },
}

SCSS

$custom: #223c8b;
$custom-light: #6d71ae;
$custom-dark: #000000;

JSON

{
  "hex": "#223c8b",
  "rgb": {
    "r": 34,
    "g": 60,
    "b": 139
  },
  "hsl": {
    "h": 225.143,
    "s": 60.694,
    "l": 33.922
  },
  "oklch": {
    "l": 0.38597,
    "c": 0.13539,
    "h": 266.3
  },
  "luminance": 0.05436
}

Semantic roles & 50–950 ramp

primary

#223C8B

secondary

#B89F50

accent

#BC44E4

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #223C8B

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

Preview Lab → · Contrast checker → · Palette generator →