#223F72#223F72

#223F72 is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.3% C 0.094 H 260.8°. Best body text is #FFFFFF at 10.39:1 contrast (WCAG AA passes).

Color values

HEX	#223F72
RGB	rgb(34, 63, 114)
HSL	hsl(218, 54%, 29%)
HSV	hsv(218, 70%, 45%)
CMYK	cmyk(70.2%, 44.7%, 0%, 55.3%)
CIE-LAB	lab(27.04, 7.55, -32.66)
CIE-LCH	lch(27.04, 33.52, 283.01°)
OKLab	oklab(37.34% -0.015 -0.0932)
OKLCH	oklch(37.34% 0.094 260.8)
XYZ	xyz(5.4734, 5.1095, 16.6141)
Luminance	0.0511 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223F72 #725522

analogous

#226772 #223F72 #2D2272

triadic

#223F72 #72223F #3F7222

tetradic

#223F72 #722267 #725522 #22722D

square

#223F72 #722267 #725522 #22722D

split-complementary

#223F72 #722D22 #677222

monochromatic

#070D18 #142543 #223F72 #3059A1 #4675C8

Accessibility & contrast

On white

10.39

#223F72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#223F72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223F72

10.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223F72	#FFFFFF	#000000	##FFFFFF
##223F72	1.00	10.39	2.02	10.39
#FFFFFF	10.39	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#274474

Deuteranopia (green-blind)

#1A3C71

Tritanopia (blue-blind)

#004B53

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #223f72;
/* rgb */ color: rgb(34, 63, 114);
/* oklch */ color: oklch(37.3% 0.094 260.8);

Tailwind

colors: {
  custom: {
    50: '#67739b',
    500: '#223f72',
    950: '#000000',
  },
}

SCSS

$custom: #223f72;
$custom-light: #67739b;
$custom-dark: #000000;

JSON

{
  "hex": "#223f72",
  "rgb": {
    "r": 34,
    "g": 63,
    "b": 114
  },
  "hsl": {
    "h": 218.25,
    "s": 54.054,
    "l": 29.02
  },
  "oklch": {
    "l": 0.37344,
    "c": 0.09444,
    "h": 260.8
  },
  "luminance": 0.0511
}

Semantic roles & 50–950 ramp

primary

#223F72

secondary

#A5844B

accent

#A84ADD

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06080E

muted

#7A7B7E

Preview Lab

Preview with #223F72

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

Preview Lab → · Contrast checker → · Palette generator →