#223B7D#223B7D

#223B7D is a dark, moderate blue. Relative luminance 0.049; OKLCH L 37.2% C 0.116 H 265.5°. Best body text is #FFFFFF at 10.55:1 contrast (WCAG AA passes).

Color values

HEX	#223B7D
RGB	rgb(34, 59, 125)
HSL	hsl(224, 57%, 31%)
HSV	hsv(224, 73%, 49%)
CMYK	cmyk(72.8%, 52.8%, 0%, 51%)
CIE-LAB	lab(26.59, 14.68, -40.34)
CIE-LCH	lch(26.59, 42.93, 290.00°)
OKLab	oklab(37.24% -0.0092 -0.1159)
OKLCH	oklch(37.24% 0.116 265.5)
XYZ	xyz(5.9240, 4.9481, 20.0409)
Luminance	0.0495 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223B7D #7D6422

analogous

#22687D #223B7D #36227D

triadic

#223B7D #7D223B #3B7D22

tetradic

#223B7D #7D2268 #7D6422 #227D36

square

#223B7D #7D2268 #7D6422 #227D36

split-complementary

#223B7D #7D3622 #687D22

monochromatic

#080E1D #15244D #223B7D #2F52AD #4B6FCE

Accessibility & contrast

On white

10.55

#223B7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#223B7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223B7D

10.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223B7D	#FFFFFF	#000000	##FFFFFF
##223B7D	1.00	10.55	1.99	10.55
#FFFFFF	10.55	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#13437F

Deuteranopia (green-blind)

#003B7C

Tritanopia (blue-blind)

#004B56

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #223b7d;
/* rgb */ color: rgb(34, 59, 125);
/* oklch */ color: oklch(37.2% 0.116 265.5);

Tailwind

colors: {
  custom: {
    50: '#6a70a3',
    500: '#223b7d',
    950: '#000000',
  },
}

SCSS

$custom: #223b7d;
$custom-light: #6a70a3;
$custom-dark: #000000;

JSON

{
  "hex": "#223b7d",
  "rgb": {
    "r": 34,
    "g": 59,
    "b": 125
  },
  "hsl": {
    "h": 223.516,
    "s": 57.233,
    "l": 31.176
  },
  "oklch": {
    "l": 0.37235,
    "c": 0.11625,
    "h": 265.5
  },
  "luminance": 0.04949
}

Semantic roles & 50–950 ramp

primary

#223B7D

secondary

#B0944B

accent

#B647E0

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #223B7D

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

Preview Lab → · Contrast checker → · Palette generator →