#223CA5#223CA5

#223CA5 is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.9% C 0.171 H 267.2°. Best body text is #FFFFFF at 9.30:1 contrast (WCAG AA passes).

Color values

HEX	#223CA5
RGB	rgb(34, 60, 165)
HSL	hsl(228, 66%, 39%)
HSV	hsv(228, 79%, 65%)
CMYK	cmyk(79.4%, 63.6%, 0%, 35.3%)
CIE-LAB	lab(30.13, 29.62, -59.18)
CIE-LCH	lch(30.13, 66.18, 296.59°)
OKLab	oklab(40.91% -0.0082 -0.1712)
OKLCH	oklch(40.91% 0.171 267.2)
XYZ	xyz(9.0647, 6.2874, 36.3259)
Luminance	0.0629 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223CA5 #A58B22

analogous

#227EA5 #223CA5 #4A22A5

triadic

#223CA5 #A5223C #3CA522

tetradic

#223CA5 #A5227E #A58B22 #22A54A

square

#223CA5 #A5227E #A58B22 #22A54A

split-complementary

#223CA5 #A54A22 #7EA522

monochromatic

#0D1740 #182A72 #223CA5 #3051D4 #637BDF

Accessibility & contrast

On white

9.30

#223CA5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#223CA5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223CA5

9.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223CA5	#FFFFFF	#000000	##FFFFFF
##223CA5	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)

#004DA8

Deuteranopia (green-blind)

#0041A3

Tritanopia (blue-blind)

#00576B

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #223ca5;
/* rgb */ color: rgb(34, 60, 165);
/* oklch */ color: oklch(40.9% 0.171 267.2);

Tailwind

colors: {
  custom: {
    50: '#7371c1',
    500: '#223ca5',
    950: '#000000',
  },
}

SCSS

$custom: #223ca5;
$custom-light: #7371c1;
$custom-dark: #000000;

JSON

{
  "hex": "#223ca5",
  "rgb": {
    "r": 34,
    "g": 60,
    "b": 165
  },
  "hsl": {
    "h": 228.092,
    "s": 65.829,
    "l": 39.02
  },
  "oklch": {
    "l": 0.40908,
    "c": 0.17142,
    "h": 267.2
  },
  "luminance": 0.06288
}

Semantic roles & 50–950 ramp

primary

#223CA5

secondary

#C4B05F

accent

#C73FE9

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #223CA5

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

Preview Lab → · Contrast checker → · Palette generator →