#223F73#223F73

#223F73 is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.4% C 0.096 H 261.1°. Best body text is #FFFFFF at 10.36:1 contrast (WCAG AA passes).

Color values

HEX	#223F73
RGB	rgb(34, 63, 115)
HSL	hsl(219, 54%, 29%)
HSV	hsv(219, 70%, 45%)
CMYK	cmyk(70.4%, 45.2%, 0%, 54.9%)
CIE-LAB	lab(27.11, 7.94, -33.19)
CIE-LCH	lch(27.11, 34.13, 283.45°)
OKLab	oklab(37.41% -0.0148 -0.0948)
OKLCH	oklch(37.41% 0.096 261.1)
XYZ	xyz(5.5306, 5.1323, 16.9155)
Luminance	0.0513 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223F73 #735622

analogous

#226873 #223F73 #2E2273

triadic

#223F73 #73223F #3F7322

tetradic

#223F73 #732268 #735622 #22732E

square

#223F73 #732268 #735622 #22732E

split-complementary

#223F73 #732E22 #687322

monochromatic

#070D18 #142544 #223F73 #3059A2 #4775C9

Accessibility & contrast

On white

10.36

#223F73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#223F73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223F73

10.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223F73	#FFFFFF	#000000	##FFFFFF
##223F73	1.00	10.36	2.03	10.36
#FFFFFF	10.36	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#264475

Deuteranopia (green-blind)

#193D72

Tritanopia (blue-blind)

#004B53

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #223f73;
/* rgb */ color: rgb(34, 63, 115);
/* oklch */ color: oklch(37.4% 0.096 261.1);

Tailwind

colors: {
  custom: {
    50: '#67739b',
    500: '#223f73',
    950: '#000000',
  },
}

SCSS

$custom: #223f73;
$custom-light: #67739b;
$custom-dark: #000000;

JSON

{
  "hex": "#223f73",
  "rgb": {
    "r": 34,
    "g": 63,
    "b": 115
  },
  "hsl": {
    "h": 218.519,
    "s": 54.362,
    "l": 29.216
  },
  "oklch": {
    "l": 0.37414,
    "c": 0.09594,
    "h": 261.1
  },
  "luminance": 0.05133
}

Semantic roles & 50–950 ramp

primary

#223F73

secondary

#A6854B

accent

#A94ADE

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07080E

muted

#7A7B7E

Preview Lab

Preview with #223F73

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

Preview Lab → · Contrast checker → · Palette generator →