#223B9F#223B9F

#223B9F is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.2% C 0.165 H 267.4°. Best body text is #FFFFFF at 9.57:1 contrast (WCAG AA passes).

Color values

HEX	#223B9F
RGB	rgb(34, 59, 159)
HSL	hsl(228, 65%, 38%)
HSV	hsv(228, 79%, 62%)
CMYK	cmyk(78.6%, 62.9%, 0%, 37.6%)
CIE-LAB	lab(29.34, 28.00, -56.85)
CIE-LCH	lch(29.34, 63.37, 296.22°)
OKLab	oklab(40.16% -0.0075 -0.1644)
OKLCH	oklch(40.16% 0.165 267.4)
XYZ	xyz(8.4795, 5.9703, 33.4996)
Luminance	0.0597 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223B9F #9F8622

analogous

#22799F #223B9F #47229F

triadic

#223B9F #9F223B #3B9F22

tetradic

#223B9F #9F2279 #9F8622 #229F47

square

#223B9F #9F2279 #9F8622 #229F47

split-complementary

#223B9F #9F4722 #799F22

monochromatic

#0C163A #17286D #223B9F #2D4ED1 #5F78DD

Accessibility & contrast

On white

9.57

#223B9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#223B9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223B9F

9.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223B9F	#FFFFFF	#000000	##FFFFFF
##223B9F	1.00	9.57	2.19	9.57
#FFFFFF	9.57	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BA2

Deuteranopia (green-blind)

#003F9D

Tritanopia (blue-blind)

#005567

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #223b9f;
/* rgb */ color: rgb(34, 59, 159);
/* oklch */ color: oklch(40.2% 0.165 267.4);

Tailwind

colors: {
  custom: {
    50: '#7270bc',
    500: '#223b9f',
    950: '#000000',
  },
}

SCSS

$custom: #223b9f;
$custom-light: #7270bc;
$custom-dark: #000000;

JSON

{
  "hex": "#223b9f",
  "rgb": {
    "r": 34,
    "g": 59,
    "b": 159
  },
  "hsl": {
    "h": 228,
    "s": 64.767,
    "l": 37.843
  },
  "oklch": {
    "l": 0.40161,
    "c": 0.16456,
    "h": 267.4
  },
  "luminance": 0.05971
}

Semantic roles & 50–950 ramp

primary

#223B9F

secondary

#C1AD5B

accent

#C640E8

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #223B9F

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

Preview Lab → · Contrast checker → · Palette generator →