#223B9C#223B9C

#223B9C is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.9% C 0.160 H 267.3°. Best body text is #FFFFFF at 9.66:1 contrast (WCAG AA passes).

Color values

HEX	#223B9C
RGB	rgb(34, 59, 156)
HSL	hsl(228, 64%, 37%)
HSV	hsv(228, 78%, 61%)
CMYK	cmyk(78.2%, 62.2%, 0%, 38.8%)
CIE-LAB	lab(29.08, 26.84, -55.46)
CIE-LCH	lch(29.08, 61.61, 295.83°)
OKLab	oklab(39.89% -0.0075 -0.1603)
OKLCH	oklch(39.89% 0.16 267.3)
XYZ	xyz(8.2223, 5.8674, 32.1452)
Luminance	0.0587 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223B9C #9C8322

analogous

#22789C #223B9C #46229C

triadic

#223B9C #9C223B #3B9C22

tetradic

#223B9C #9C2278 #9C8322 #229C46

square

#223B9C #9C2278 #9C8322 #229C46

split-complementary

#223B9C #9C4622 #789C22

monochromatic

#0C1538 #17286A #223B9C #2D4ECE #5D77DC

Accessibility & contrast

On white

9.66

#223B9C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#223B9C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223B9C

9.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223B9C	#FFFFFF	#000000	##FFFFFF
##223B9C	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)

#004A9F

Deuteranopia (green-blind)

#003F9A

Tritanopia (blue-blind)

#005465

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #223b9c;
/* rgb */ color: rgb(34, 59, 156);
/* oklch */ color: oklch(39.9% 0.160 267.3);

Tailwind

colors: {
  custom: {
    50: '#7170ba',
    500: '#223b9c',
    950: '#000000',
  },
}

SCSS

$custom: #223b9c;
$custom-light: #7170ba;
$custom-dark: #000000;

JSON

{
  "hex": "#223b9c",
  "rgb": {
    "r": 34,
    "g": 59,
    "b": 156
  },
  "hsl": {
    "h": 227.705,
    "s": 64.211,
    "l": 37.255
  },
  "oklch": {
    "l": 0.39886,
    "c": 0.16049,
    "h": 267.3
  },
  "luminance": 0.05868
}

Semantic roles & 50–950 ramp

primary

#223B9C

secondary

#C0AB5A

accent

#C541E7

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #223B9C

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

Preview Lab → · Contrast checker → · Palette generator →