#223F74#223F74

#223F74 is a dark, moderate blue. Relative luminance 0.052; OKLCH L 37.5% C 0.097 H 261.4°. Best body text is #FFFFFF at 10.34:1 contrast (WCAG AA passes).

Color values

HEX	#223F74
RGB	rgb(34, 63, 116)
HSL	hsl(219, 55%, 29%)
HSV	hsv(219, 71%, 45%)
CMYK	cmyk(70.7%, 45.7%, 0%, 54.5%)
CIE-LAB	lab(27.17, 8.33, -33.72)
CIE-LCH	lch(27.17, 34.74, 283.88°)
OKLab	oklab(37.49% -0.0146 -0.0963)
OKLCH	oklch(37.49% 0.097 261.4)
XYZ	xyz(5.5885, 5.1555, 17.2202)
Luminance	0.0516 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223F74 #745722

analogous

#226874 #223F74 #2E2274

triadic

#223F74 #74223F #3F7422

tetradic

#223F74 #742268 #745722 #22742E

square

#223F74 #742268 #745722 #22742E

split-complementary

#223F74 #742E22 #687422

monochromatic

#070D18 #142545 #223F74 #3059A3 #4775C9

Accessibility & contrast

On white

10.34

#223F74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#223F74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223F74

10.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223F74	#FFFFFF	#000000	##FFFFFF
##223F74	1.00	10.34	2.03	10.34
#FFFFFF	10.34	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#264476

Deuteranopia (green-blind)

#173D73

Tritanopia (blue-blind)

#004B53

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #223f74;
/* rgb */ color: rgb(34, 63, 116);
/* oklch */ color: oklch(37.5% 0.097 261.4);

Tailwind

colors: {
  custom: {
    50: '#67739c',
    500: '#223f74',
    950: '#000000',
  },
}

SCSS

$custom: #223f74;
$custom-light: #67739c;
$custom-dark: #000000;

JSON

{
  "hex": "#223f74",
  "rgb": {
    "r": 34,
    "g": 63,
    "b": 116
  },
  "hsl": {
    "h": 218.78,
    "s": 54.667,
    "l": 29.412
  },
  "oklch": {
    "l": 0.37485,
    "c": 0.09745,
    "h": 261.4
  },
  "luminance": 0.05156
}

Semantic roles & 50–950 ramp

primary

#223F74

secondary

#A7864B

accent

#AA4ADE

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07080E

muted

#7A7B7E

Preview Lab

Preview with #223F74

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

Preview Lab → · Contrast checker → · Palette generator →