#223F9C#223F9C

#223F9C is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.7% C 0.155 H 266.2°. Best body text is #FFFFFF at 9.30:1 contrast (WCAG AA passes).

Color values

HEX	#223F9C
RGB	rgb(34, 63, 156)
HSL	hsl(226, 64%, 37%)
HSV	hsv(226, 78%, 61%)
CMYK	cmyk(78.2%, 59.6%, 0%, 38.8%)
CIE-LAB	lab(30.14, 24.14, -53.71)
CIE-LCH	lch(30.14, 58.89, 294.20°)
OKLab	oklab(40.68% -0.0102 -0.1551)
OKLCH	oklch(40.68% 0.155 266.2)
XYZ	xyz(8.4358, 6.2944, 32.2164)
Luminance	0.0630 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223F9C #9C7F22

analogous

#227C9C #223F9C #42229C

triadic

#223F9C #9C223F #3F9C22

tetradic

#223F9C #9C227C #9C7F22 #229C42

square

#223F9C #9C227C #9C7F22 #229C42

split-complementary

#223F9C #9C4222 #7C9C22

monochromatic

#0C1638 #172B6A #223F9C #2D53CE #5D7BDC

Accessibility & contrast

On white

9.30

#223F9C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#223F9C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223F9C

9.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223F9C	#FFFFFF	#000000	##FFFFFF
##223F9C	1.00	9.30	2.26	9.30
#FFFFFF	9.30	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004D9F

Deuteranopia (green-blind)

#00429A

Tritanopia (blue-blind)

#005667

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #223f9c;
/* rgb */ color: rgb(34, 63, 156);
/* oklch */ color: oklch(40.7% 0.155 266.2);

Tailwind

colors: {
  custom: {
    50: '#7173ba',
    500: '#223f9c',
    950: '#000000',
  },
}

SCSS

$custom: #223f9c;
$custom-light: #7173ba;
$custom-dark: #000000;

JSON

{
  "hex": "#223f9c",
  "rgb": {
    "r": 34,
    "g": 63,
    "b": 156
  },
  "hsl": {
    "h": 225.738,
    "s": 64.211,
    "l": 37.255
  },
  "oklch": {
    "l": 0.40681,
    "c": 0.15548,
    "h": 266.2
  },
  "luminance": 0.06295
}

Semantic roles & 50–950 ramp

primary

#223F9C

secondary

#C0A85A

accent

#C041E7

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #223F9C

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

Preview Lab → · Contrast checker → · Palette generator →