#223B9E#223B9E

#223B9E is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.1% C 0.163 H 267.4°. Best body text is #FFFFFF at 9.60:1 contrast (WCAG AA passes).

Color values

HEX	#223B9E
RGB	rgb(34, 59, 158)
HSL	hsl(228, 65%, 38%)
HSV	hsv(228, 78%, 62%)
CMYK	cmyk(78.5%, 62.7%, 0%, 38%)
CIE-LAB	lab(29.25, 27.61, -56.39)
CIE-LCH	lch(29.25, 62.78, 296.09°)
OKLab	oklab(40.07% -0.0075 -0.163)
OKLCH	oklch(40.07% 0.163 267.4)
XYZ	xyz(8.3931, 5.9357, 33.0445)
Luminance	0.0594 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223B9E #9E8522

analogous

#22799E #223B9E #47229E

triadic

#223B9E #9E223B #3B9E22

tetradic

#223B9E #9E2279 #9E8522 #229E47

square

#223B9E #9E2279 #9E8522 #229E47

split-complementary

#223B9E #9E4722 #799E22

monochromatic

#0C1539 #17286C #223B9E #2D4ED0 #5E78DC

Accessibility & contrast

On white

9.60

#223B9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#223B9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223B9E

9.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223B9E	#FFFFFF	#000000	##FFFFFF
##223B9E	1.00	9.60	2.19	9.60
#FFFFFF	9.60	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BA1

Deuteranopia (green-blind)

#003F9C

Tritanopia (blue-blind)

#005566

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #223b9e;
/* rgb */ color: rgb(34, 59, 158);
/* oklch */ color: oklch(40.1% 0.163 267.4);

Tailwind

colors: {
  custom: {
    50: '#7270bc',
    500: '#223b9e',
    950: '#000000',
  },
}

SCSS

$custom: #223b9e;
$custom-light: #7270bc;
$custom-dark: #000000;

JSON

{
  "hex": "#223b9e",
  "rgb": {
    "r": 34,
    "g": 59,
    "b": 158
  },
  "hsl": {
    "h": 227.903,
    "s": 64.583,
    "l": 37.647
  },
  "oklch": {
    "l": 0.40069,
    "c": 0.16321,
    "h": 267.4
  },
  "luminance": 0.05937
}

Semantic roles & 50–950 ramp

primary

#223B9E

secondary

#C1AC5B

accent

#C640E8

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #223B9E

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

Preview Lab → · Contrast checker → · Palette generator →