#223B66#223B66

#223B66 is a dark, moderate blue. Relative luminance 0.044; OKLCH L 35.5% C 0.081 H 260.6°. Best body text is #FFFFFF at 11.14:1 contrast (WCAG AA passes).

Color values

HEX	#223B66
RGB	rgb(34, 59, 102)
HSL	hsl(218, 50%, 27%)
HSV	hsv(218, 67%, 40%)
CMYK	cmyk(66.7%, 42.2%, 0%, 60%)
CIE-LAB	lab(25.04, 5.61, -28.18)
CIE-LCH	lch(25.04, 28.73, 281.27°)
OKLab	oklab(35.55% -0.0133 -0.0801)
OKLCH	oklch(35.55% 0.081 260.6)
XYZ	xyz(4.6211, 4.4269, 13.1787)
Luminance	0.0443 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223B66 #664D22

analogous

#225D66 #223B66 #2B2266

triadic

#223B66 #66223B #3B6622

tetradic

#223B66 #66225D #664D22 #22662B

square

#223B66 #66225D #664D22 #22662B

split-complementary

#223B66 #662B22 #5D6622

monochromatic

#080D17 #132038 #223B66 #315694 #4271C0

Accessibility & contrast

On white

11.14

#223B66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#223B66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223B66

11.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223B66	#FFFFFF	#000000	##FFFFFF
##223B66	1.00	11.14	1.89	11.14
#FFFFFF	11.14	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#283F68

Deuteranopia (green-blind)

#1E3865

Tritanopia (blue-blind)

#00454B

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #223b66;
/* rgb */ color: rgb(34, 59, 102);
/* oklch */ color: oklch(35.5% 0.081 260.6);

Tailwind

colors: {
  custom: {
    50: '#657092',
    500: '#223b66',
    950: '#000000',
  },
}

SCSS

$custom: #223b66;
$custom-light: #657092;
$custom-dark: #000000;

JSON

{
  "hex": "#223b66",
  "rgb": {
    "r": 34,
    "g": 59,
    "b": 102
  },
  "hsl": {
    "h": 217.941,
    "s": 50,
    "l": 26.667
  },
  "oklch": {
    "l": 0.35546,
    "c": 0.08125,
    "h": 260.6
  },
  "luminance": 0.04427
}

Semantic roles & 50–950 ramp

primary

#223B66

secondary

#9A7C4A

accent

#A64EDA

background

#F6F6F9

surface

#EBECF1

border

#C6C7CB

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #223B66

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

Preview Lab → · Contrast checker → · Palette generator →