#223BA6#223BA6

#223BA6 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.8% C 0.174 H 267.5°. Best body text is #FFFFFF at 9.36:1 contrast (WCAG AA passes).

Color values

HEX	#223BA6
RGB	rgb(34, 59, 166)
HSL	hsl(229, 66%, 39%)
HSV	hsv(229, 80%, 65%)
CMYK	cmyk(79.5%, 64.5%, 0%, 34.9%)
CIE-LAB	lab(29.96, 30.66, -60.06)
CIE-LCH	lch(29.96, 67.43, 297.05°)
OKLab	oklab(40.81% -0.0077 -0.1738)
OKLCH	oklch(40.81% 0.174 267.5)
XYZ	xyz(9.1042, 6.2201, 36.7898)
Luminance	0.0622 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223BA6 #A68D22

analogous

#227DA6 #223BA6 #4B22A6

triadic

#223BA6 #A6223B #3BA622

tetradic

#223BA6 #A6227D #A68D22 #22A64B

square

#223BA6 #A6227D #A68D22 #22A64B

split-complementary

#223BA6 #A64B22 #7DA622

monochromatic

#0D1740 #182973 #223BA6 #3050D5 #637BDF

Accessibility & contrast

On white

9.36

#223BA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#223BA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223BA6

9.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223BA6	#FFFFFF	#000000	##FFFFFF
##223BA6	1.00	9.36	2.24	9.36
#FFFFFF	9.36	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA9

Deuteranopia (green-blind)

#0040A4

Tritanopia (blue-blind)

#00576B

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #223ba6;
/* rgb */ color: rgb(34, 59, 166);
/* oklch */ color: oklch(40.8% 0.174 267.5);

Tailwind

colors: {
  custom: {
    50: '#7470c1',
    500: '#223ba6',
    950: '#000000',
  },
}

SCSS

$custom: #223ba6;
$custom-light: #7470c1;
$custom-dark: #000000;

JSON

{
  "hex": "#223ba6",
  "rgb": {
    "r": 34,
    "g": 59,
    "b": 166
  },
  "hsl": {
    "h": 228.636,
    "s": 66,
    "l": 39.216
  },
  "oklch": {
    "l": 0.40814,
    "c": 0.17396,
    "h": 267.5
  },
  "luminance": 0.06221
}

Semantic roles & 50–950 ramp

primary

#223BA6

secondary

#C4B15F

accent

#C93FE9

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #223BA6

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

Preview Lab → · Contrast checker → · Palette generator →