#223C71#223C71

#223C71 is a dark, moderate blue. Relative luminance 0.048; OKLCH L 36.6% C 0.097 H 262.9°. Best body text is #FFFFFF at 10.75:1 contrast (WCAG AA passes).

Color values

HEX	#223C71
RGB	rgb(34, 60, 113)
HSL	hsl(220, 54%, 29%)
HSV	hsv(220, 70%, 44%)
CMYK	cmyk(69.9%, 46.9%, 0%, 55.7%)
CIE-LAB	lab(26.05, 9.23, -33.61)
CIE-LCH	lch(26.05, 34.86, 285.36°)
OKLab	oklab(36.56% -0.012 -0.0961)
OKLCH	oklch(36.56% 0.097 262.9)
XYZ	xyz(5.2551, 4.7635, 16.2621)
Luminance	0.0476 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223C71 #715722

analogous

#226471 #223C71 #302271

triadic

#223C71 #71223C #3C7122

tetradic

#223C71 #712264 #715722 #227130

square

#223C71 #712264 #715722 #227130

split-complementary

#223C71 #713022 #647122

monochromatic

#070C18 #142342 #223C71 #3055A0 #4671C7

Accessibility & contrast

On white

10.75

#223C71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#223C71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223C71

10.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223C71	#FFFFFF	#000000	##FFFFFF
##223C71	1.00	10.75	1.95	10.75
#FFFFFF	10.75	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#224273

Deuteranopia (green-blind)

#143A70

Tritanopia (blue-blind)

#004851

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #223c71;
/* rgb */ color: rgb(34, 60, 113);
/* oklch */ color: oklch(36.6% 0.097 262.9);

Tailwind

colors: {
  custom: {
    50: '#67719a',
    500: '#223c71',
    950: '#000000',
  },
}

SCSS

$custom: #223c71;
$custom-light: #67719a;
$custom-dark: #000000;

JSON

{
  "hex": "#223c71",
  "rgb": {
    "r": 34,
    "g": 60,
    "b": 113
  },
  "hsl": {
    "h": 220.253,
    "s": 53.741,
    "l": 28.824
  },
  "oklch": {
    "l": 0.36556,
    "c": 0.09683,
    "h": 262.9
  },
  "luminance": 0.04764
}

Semantic roles & 50–950 ramp

primary

#223C71

secondary

#A4874A

accent

#AD4BDD

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #223C71

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

Preview Lab → · Contrast checker → · Palette generator →