#223C99#223C99

#223C99 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.8% C 0.155 H 267.0°. Best body text is #FFFFFF at 9.66:1 contrast (WCAG AA passes).

Color values

HEX	#223C99
RGB	rgb(34, 60, 153)
HSL	hsl(227, 64%, 37%)
HSV	hsv(227, 78%, 60%)
CMYK	cmyk(77.8%, 60.8%, 0%, 40%)
CIE-LAB	lab(29.08, 25.01, -53.62)
CIE-LCH	lch(29.08, 59.16, 295.00°)
OKLab	oklab(39.81% -0.0082 -0.1549)
OKLCH	oklch(39.81% 0.155 267)
XYZ	xyz(8.0233, 5.8708, 30.8411)
Luminance	0.0587 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223C99 #997F22

analogous

#227899 #223C99 #442299

triadic

#223C99 #99223C #3C9922

tetradic

#223C99 #992278 #997F22 #229944

square

#223C99 #992278 #997F22 #229944

split-complementary

#223C99 #994422 #789922

monochromatic

#0C1535 #172867 #223C99 #2D50CB #5B77DB

Accessibility & contrast

On white

9.66

#223C99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#223C99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223C99

9.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223C99	#FFFFFF	#000000	##FFFFFF
##223C99	1.00	9.66	2.17	9.66
#FFFFFF	9.66	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A9C

Deuteranopia (green-blind)

#003F97

Tritanopia (blue-blind)

#005464

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #223c99;
/* rgb */ color: rgb(34, 60, 153);
/* oklch */ color: oklch(39.8% 0.155 267.0);

Tailwind

colors: {
  custom: {
    50: '#7071b8',
    500: '#223c99',
    950: '#000000',
  },
}

SCSS

$custom: #223c99;
$custom-light: #7071b8;
$custom-dark: #000000;

JSON

{
  "hex": "#223c99",
  "rgb": {
    "r": 34,
    "g": 60,
    "b": 153
  },
  "hsl": {
    "h": 226.891,
    "s": 63.636,
    "l": 36.667
  },
  "oklch": {
    "l": 0.39812,
    "c": 0.15512,
    "h": 267
  },
  "luminance": 0.05872
}

Semantic roles & 50–950 ramp

primary

#223C99

secondary

#BFA858

accent

#C241E7

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #223C99

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

Preview Lab → · Contrast checker → · Palette generator →