#223F9D#223F9D

#223F9D is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.8% C 0.157 H 266.3°. Best body text is #FFFFFF at 9.27:1 contrast (WCAG AA passes).

Color values

HEX	#223F9D
RGB	rgb(34, 63, 157)
HSL	hsl(226, 64%, 37%)
HSV	hsv(226, 78%, 62%)
CMYK	cmyk(78.3%, 59.9%, 0%, 38.4%)
CIE-LAB	lab(30.23, 24.53, -54.18)
CIE-LCH	lch(30.23, 59.48, 294.35°)
OKLab	oklab(40.77% -0.0102 -0.1565)
OKLCH	oklch(40.77% 0.157 266.3)
XYZ	xyz(8.5209, 6.3285, 32.6642)
Luminance	0.0633 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223F9D #9D8022

analogous

#227C9D #223F9D #43229D

triadic

#223F9D #9D223F #3F9D22

tetradic

#223F9D #9D227C #9D8022 #229D43

square

#223F9D #9D227C #9D8022 #229D43

split-complementary

#223F9D #9D4322 #7C9D22

monochromatic

#0C1738 #172B6B #223F9D #2D53CF #5D7BDC

Accessibility & contrast

On white

9.27

#223F9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#223F9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223F9D

9.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223F9D	#FFFFFF	#000000	##FFFFFF
##223F9D	1.00	9.27	2.27	9.27
#FFFFFF	9.27	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA0

Deuteranopia (green-blind)

#00429B

Tritanopia (blue-blind)

#005767

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #223f9d;
/* rgb */ color: rgb(34, 63, 157);
/* oklch */ color: oklch(40.8% 0.157 266.3);

Tailwind

colors: {
  custom: {
    50: '#7173bb',
    500: '#223f9d',
    950: '#000000',
  },
}

SCSS

$custom: #223f9d;
$custom-light: #7173bb;
$custom-dark: #000000;

JSON

{
  "hex": "#223f9d",
  "rgb": {
    "r": 34,
    "g": 63,
    "b": 157
  },
  "hsl": {
    "h": 225.854,
    "s": 64.398,
    "l": 37.451
  },
  "oklch": {
    "l": 0.40769,
    "c": 0.15685,
    "h": 266.3
  },
  "luminance": 0.06329
}

Semantic roles & 50–950 ramp

primary

#223F9D

secondary

#C1A85A

accent

#C040E7

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #223F9D

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

Preview Lab → · Contrast checker → · Palette generator →