#223F8A#223F8A

#223F8A is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.2% C 0.130 H 265.0°. Best body text is #FFFFFF at 9.79:1 contrast (WCAG AA passes).

Color values

HEX	#223F8A
RGB	rgb(34, 63, 138)
HSL	hsl(223, 60%, 34%)
HSV	hsv(223, 75%, 54%)
CMYK	cmyk(75.4%, 54.3%, 0%, 45.9%)
CIE-LAB	lab(28.72, 17.06, -45.00)
CIE-LCH	lch(28.72, 48.12, 290.76°)
OKLab	oklab(39.16% -0.0114 -0.1295)
OKLCH	oklch(39.16% 0.13 265)
XYZ	xyz(7.0230, 5.7293, 24.7756)
Luminance	0.0573 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223F8A #8A6D22

analogous

#22738A #223F8A #39228A

triadic

#223F8A #8A223F #3F8A22

tetradic

#223F8A #8A2273 #8A6D22 #228A39

square

#223F8A #8A2273 #8A6D22 #228A39

split-complementary

#223F8A #8A3922 #738A22

monochromatic

#0A1228 #162959 #223F8A #2E55BB #5276D4

Accessibility & contrast

On white

9.79

#223F8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#223F8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223F8A

9.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223F8A	#FFFFFF	#000000	##FFFFFF
##223F8A	1.00	9.79	2.15	9.79
#FFFFFF	9.79	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#09498D

Deuteranopia (green-blind)

#003F89

Tritanopia (blue-blind)

#00515E

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #223f8a;
/* rgb */ color: rgb(34, 63, 138);
/* oklch */ color: oklch(39.2% 0.130 265.0);

Tailwind

colors: {
  custom: {
    50: '#6c73ad',
    500: '#223f8a',
    950: '#000000',
  },
}

SCSS

$custom: #223f8a;
$custom-light: #6c73ad;
$custom-dark: #000000;

JSON

{
  "hex": "#223f8a",
  "rgb": {
    "r": 34,
    "g": 63,
    "b": 138
  },
  "hsl": {
    "h": 223.269,
    "s": 60.465,
    "l": 33.725
  },
  "oklch": {
    "l": 0.39161,
    "c": 0.13002,
    "h": 265
  },
  "luminance": 0.0573
}

Semantic roles & 50–950 ramp

primary

#223F8A

secondary

#B89B50

accent

#B744E4

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #223F8A

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

Preview Lab → · Contrast checker → · Palette generator →