#223F8D#223F8D

#223F8D is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.4% C 0.134 H 265.3°. Best body text is #FFFFFF at 9.71:1 contrast (WCAG AA passes).

Color values

HEX	#223F8D
RGB	rgb(34, 63, 141)
HSL	hsl(224, 61%, 34%)
HSV	hsv(224, 76%, 55%)
CMYK	cmyk(75.9%, 55.3%, 0%, 44.7%)
CIE-LAB	lab(28.95, 18.25, -46.48)
CIE-LCH	lch(28.95, 49.93, 291.43°)
OKLab	oklab(39.41% -0.0111 -0.1339)
OKLCH	oklch(39.41% 0.134 265.3)
XYZ	xyz(7.2432, 5.8174, 25.9353)
Luminance	0.0582 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223F8D #8D7022

analogous

#22758D #223F8D #3A228D

triadic

#223F8D #8D223F #3F8D22

tetradic

#223F8D #8D2275 #8D7022 #228D3A

square

#223F8D #8D2275 #8D7022 #228D3A

split-complementary

#223F8D #8D3A22 #758D22

monochromatic

#0A132A #16295C #223F8D #2E55BE #5477D6

Accessibility & contrast

On white

9.71

#223F8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#223F8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223F8D

9.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223F8D	#FFFFFF	#000000	##FFFFFF
##223F8D	1.00	9.71	2.16	9.71
#FFFFFF	9.71	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#014990

Deuteranopia (green-blind)

#00408B

Tritanopia (blue-blind)

#00525F

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #223f8d;
/* rgb */ color: rgb(34, 63, 141);
/* oklch */ color: oklch(39.4% 0.134 265.3);

Tailwind

colors: {
  custom: {
    50: '#6d73af',
    500: '#223f8d',
    950: '#000000',
  },
}

SCSS

$custom: #223f8d;
$custom-light: #6d73af;
$custom-dark: #000000;

JSON

{
  "hex": "#223f8d",
  "rgb": {
    "r": 34,
    "g": 63,
    "b": 141
  },
  "hsl": {
    "h": 223.738,
    "s": 61.143,
    "l": 34.314
  },
  "oklch": {
    "l": 0.39406,
    "c": 0.13435,
    "h": 265.3
  },
  "luminance": 0.05818
}

Semantic roles & 50–950 ramp

primary

#223F8D

secondary

#B99D51

accent

#B944E4

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #223F8D

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

Preview Lab → · Contrast checker → · Palette generator →