#223BA5#223BA5

#223BA5 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.7% C 0.173 H 267.5°. Best body text is #FFFFFF at 9.39:1 contrast (WCAG AA passes).

Color values

HEX	#223BA5
RGB	rgb(34, 59, 165)
HSL	hsl(229, 66%, 39%)
HSV	hsv(229, 79%, 65%)
CMYK	cmyk(79.4%, 64.2%, 0%, 35.3%)
CIE-LAB	lab(29.87, 30.28, -59.60)
CIE-LCH	lch(29.87, 66.86, 296.94°)
OKLab	oklab(40.72% -0.0077 -0.1725)
OKLCH	oklch(40.72% 0.173 267.5)
XYZ	xyz(9.0128, 6.1836, 36.3086)
Luminance	0.0619 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223BA5 #A58C22

analogous

#227DA5 #223BA5 #4B22A5

triadic

#223BA5 #A5223B #3BA522

tetradic

#223BA5 #A5227D #A58C22 #22A54B

square

#223BA5 #A5227D #A58C22 #22A54B

split-complementary

#223BA5 #A54B22 #7DA522

monochromatic

#0D1740 #182972 #223BA5 #304FD4 #637ADF

Accessibility & contrast

On white

9.39

#223BA5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#223BA5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223BA5

9.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223BA5	#FFFFFF	#000000	##FFFFFF
##223BA5	1.00	9.39	2.24	9.39
#FFFFFF	9.39	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA8

Deuteranopia (green-blind)

#0040A3

Tritanopia (blue-blind)

#00576A

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #223ba5;
/* rgb */ color: rgb(34, 59, 165);
/* oklch */ color: oklch(40.7% 0.173 267.5);

Tailwind

colors: {
  custom: {
    50: '#7470c1',
    500: '#223ba5',
    950: '#000000',
  },
}

SCSS

$custom: #223ba5;
$custom-light: #7470c1;
$custom-dark: #000000;

JSON

{
  "hex": "#223ba5",
  "rgb": {
    "r": 34,
    "g": 59,
    "b": 165
  },
  "hsl": {
    "h": 228.55,
    "s": 65.829,
    "l": 39.02
  },
  "oklch": {
    "l": 0.4072,
    "c": 0.17263,
    "h": 267.5
  },
  "luminance": 0.06185
}

Semantic roles & 50–950 ramp

primary

#223BA5

secondary

#C4B15F

accent

#C83FE9

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #223BA5

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

Preview Lab → · Contrast checker → · Palette generator →