#223B9D#223B9D

#223B9D is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.0% C 0.162 H 267.3°. Best body text is #FFFFFF at 9.63:1 contrast (WCAG AA passes).

Color values

HEX	#223B9D
RGB	rgb(34, 59, 157)
HSL	hsl(228, 64%, 37%)
HSV	hsv(228, 78%, 62%)
CMYK	cmyk(78.3%, 62.4%, 0%, 38.4%)
CIE-LAB	lab(29.16, 27.23, -55.92)
CIE-LCH	lch(29.16, 62.20, 295.96°)
OKLab	oklab(39.98% -0.0075 -0.1617)
OKLCH	oklch(39.98% 0.162 267.3)
XYZ	xyz(8.3073, 5.9014, 32.5930)
Luminance	0.0590 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223B9D #9D8422

analogous

#22789D #223B9D #47229D

triadic

#223B9D #9D223B #3B9D22

tetradic

#223B9D #9D2278 #9D8422 #229D47

square

#223B9D #9D2278 #9D8422 #229D47

split-complementary

#223B9D #9D4722 #789D22

monochromatic

#0C1538 #17286B #223B9D #2D4ECF #5D77DC

Accessibility & contrast

On white

9.63

#223B9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#223B9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223B9D

9.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223B9D	#FFFFFF	#000000	##FFFFFF
##223B9D	1.00	9.63	2.18	9.63
#FFFFFF	9.63	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BA0

Deuteranopia (green-blind)

#003F9B

Tritanopia (blue-blind)

#005466

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #223b9d;
/* rgb */ color: rgb(34, 59, 157);
/* oklch */ color: oklch(40.0% 0.162 267.3);

Tailwind

colors: {
  custom: {
    50: '#7270bb',
    500: '#223b9d',
    950: '#000000',
  },
}

SCSS

$custom: #223b9d;
$custom-light: #7270bb;
$custom-dark: #000000;

JSON

{
  "hex": "#223b9d",
  "rgb": {
    "r": 34,
    "g": 59,
    "b": 157
  },
  "hsl": {
    "h": 227.805,
    "s": 64.398,
    "l": 37.451
  },
  "oklch": {
    "l": 0.39977,
    "c": 0.16185,
    "h": 267.3
  },
  "luminance": 0.05902
}

Semantic roles & 50–950 ramp

primary

#223B9D

secondary

#C1AC5A

accent

#C540E7

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #223B9D

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

Preview Lab → · Contrast checker → · Palette generator →