#223DA5#223DA5

#223DA5 is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.1% C 0.170 H 267.0°. Best body text is #FFFFFF at 9.22:1 contrast (WCAG AA passes).

Color values

HEX	#223DA5
RGB	rgb(34, 61, 165)
HSL	hsl(228, 66%, 39%)
HSV	hsv(228, 79%, 65%)
CMYK	cmyk(79.4%, 63%, 0%, 35.3%)
CIE-LAB	lab(30.38, 28.96, -58.76)
CIE-LCH	lch(30.38, 65.51, 296.23°)
OKLab	oklab(41.1% -0.0088 -0.17)
OKLCH	oklch(41.1% 0.17 267)
XYZ	xyz(9.1176, 6.3931, 36.3435)
Luminance	0.0639 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223DA5 #A58A22

analogous

#227FA5 #223DA5 #4922A5

triadic

#223DA5 #A5223D #3DA522

tetradic

#223DA5 #A5227F #A58A22 #22A549

square

#223DA5 #A5227F #A58A22 #22A549

split-complementary

#223DA5 #A54922 #7FA522

monochromatic

#0D1740 #182A72 #223DA5 #3052D4 #637CDF

Accessibility & contrast

On white

9.22

#223DA5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#223DA5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223DA5

9.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223DA5	#FFFFFF	#000000	##FFFFFF
##223DA5	1.00	9.22	2.28	9.22
#FFFFFF	9.22	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA8

Deuteranopia (green-blind)

#0042A3

Tritanopia (blue-blind)

#00586B

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #223da5;
/* rgb */ color: rgb(34, 61, 165);
/* oklch */ color: oklch(41.1% 0.170 267.0);

Tailwind

colors: {
  custom: {
    50: '#7372c1',
    500: '#223da5',
    950: '#000000',
  },
}

SCSS

$custom: #223da5;
$custom-light: #7372c1;
$custom-dark: #000000;

JSON

{
  "hex": "#223da5",
  "rgb": {
    "r": 34,
    "g": 61,
    "b": 165
  },
  "hsl": {
    "h": 227.634,
    "s": 65.829,
    "l": 39.02
  },
  "oklch": {
    "l": 0.41098,
    "c": 0.17021,
    "h": 267
  },
  "luminance": 0.06394
}

Semantic roles & 50–950 ramp

primary

#223DA5

secondary

#C4AF5F

accent

#C63FE9

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #223DA5

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

Preview Lab → · Contrast checker → · Palette generator →