#223F70#223F70

#223F70 is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.2% C 0.091 H 260.2°. Best body text is #FFFFFF at 10.43:1 contrast (WCAG AA passes).

Color values

HEX	#223F70
RGB	rgb(34, 63, 112)
HSL	hsl(218, 53%, 29%)
HSV	hsv(218, 70%, 44%)
CMYK	cmyk(69.6%, 43.7%, 0%, 56.1%)
CIE-LAB	lab(26.92, 6.76, -31.59)
CIE-LCH	lch(26.92, 32.31, 282.08°)
OKLab	oklab(37.2% -0.0155 -0.0901)
OKLCH	oklch(37.2% 0.091 260.2)
XYZ	xyz(5.3608, 5.0644, 16.0211)
Luminance	0.0507 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223F70 #705322

analogous

#226670 #223F70 #2C2270

triadic

#223F70 #70223F #3F7022

tetradic

#223F70 #702266 #705322 #22702C

square

#223F70 #702266 #705322 #22702C

split-complementary

#223F70 #702C22 #667022

monochromatic

#070D17 #142541 #223F70 #30599F #4676C7

Accessibility & contrast

On white

10.43

#223F70 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#223F70 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223F70

10.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223F70	#FFFFFF	#000000	##FFFFFF
##223F70	1.00	10.43	2.01	10.43
#FFFFFF	10.43	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#284472

Deuteranopia (green-blind)

#1C3C6F

Tritanopia (blue-blind)

#004A52

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #223f70;
/* rgb */ color: rgb(34, 63, 112);
/* oklch */ color: oklch(37.2% 0.091 260.2);

Tailwind

colors: {
  custom: {
    50: '#677399',
    500: '#223f70',
    950: '#000000',
  },
}

SCSS

$custom: #223f70;
$custom-light: #677399;
$custom-dark: #000000;

JSON

{
  "hex": "#223f70",
  "rgb": {
    "r": 34,
    "g": 63,
    "b": 112
  },
  "hsl": {
    "h": 217.692,
    "s": 53.425,
    "l": 28.627
  },
  "oklch": {
    "l": 0.37204,
    "c": 0.09141,
    "h": 260.2
  },
  "luminance": 0.05065
}

Semantic roles & 50–950 ramp

primary

#223F70

secondary

#A3824A

accent

#A74BDD

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06080E

muted

#7A7B7E

Preview Lab

Preview with #223F70

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

Preview Lab → · Contrast checker → · Palette generator →