#223F9F#223F9F

#223F9F is a dark, vivid blue. Relative luminance 0.064; OKLCH L 40.9% C 0.160 H 266.4°. Best body text is #FFFFFF at 9.21:1 contrast (WCAG AA passes).

Color values

HEX	#223F9F
RGB	rgb(34, 63, 159)
HSL	hsl(226, 65%, 38%)
HSV	hsv(226, 79%, 62%)
CMYK	cmyk(78.6%, 60.4%, 0%, 37.6%)
CIE-LAB	lab(30.39, 25.30, -55.12)
CIE-LCH	lch(30.39, 60.65, 294.66°)
OKLab	oklab(40.95% -0.0102 -0.1593)
OKLCH	oklch(40.95% 0.16 266.4)
XYZ	xyz(8.6930, 6.3973, 33.5708)
Luminance	0.0640 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223F9F #9F8222

analogous

#227D9F #223F9F #43229F

triadic

#223F9F #9F223F #3F9F22

tetradic

#223F9F #9F227D #9F8222 #229F43

square

#223F9F #9F227D #9F8222 #229F43

split-complementary

#223F9F #9F4322 #7D9F22

monochromatic

#0C173A #172B6D #223F9F #2D53D1 #5F7CDD

Accessibility & contrast

On white

9.21

#223F9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#223F9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223F9F

9.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223F9F	#FFFFFF	#000000	##FFFFFF
##223F9F	1.00	9.21	2.28	9.21
#FFFFFF	9.21	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA2

Deuteranopia (green-blind)

#00429D

Tritanopia (blue-blind)

#005768

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #223f9f;
/* rgb */ color: rgb(34, 63, 159);
/* oklch */ color: oklch(40.9% 0.160 266.4);

Tailwind

colors: {
  custom: {
    50: '#7273bc',
    500: '#223f9f',
    950: '#000000',
  },
}

SCSS

$custom: #223f9f;
$custom-light: #7273bc;
$custom-dark: #000000;

JSON

{
  "hex": "#223f9f",
  "rgb": {
    "r": 34,
    "g": 63,
    "b": 159
  },
  "hsl": {
    "h": 226.08,
    "s": 64.767,
    "l": 37.843
  },
  "oklch": {
    "l": 0.40946,
    "c": 0.1596,
    "h": 266.4
  },
  "luminance": 0.06398
}

Semantic roles & 50–950 ramp

primary

#223F9F

secondary

#C1AA5B

accent

#C140E8

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #223F9F

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

Preview Lab → · Contrast checker → · Palette generator →