#223F80#223F80

#223F80 is a dark, moderate blue. Relative luminance 0.055; OKLCH L 38.4% C 0.115 H 263.8°. Best body text is #FFFFFF at 10.04:1 contrast (WCAG AA passes).

Color values

HEX	#223F80
RGB	rgb(34, 63, 128)
HSL	hsl(221, 58%, 32%)
HSV	hsv(221, 73%, 50%)
CMYK	cmyk(73.4%, 50.8%, 0%, 49.8%)
CIE-LAB	lab(27.99, 13.09, -39.96)
CIE-LCH	lch(27.99, 42.05, 288.14°)
OKLab	oklab(38.37% -0.0126 -0.1147)
OKLCH	oklch(38.37% 0.115 263.8)
XYZ	xyz(6.3321, 5.4529, 21.1367)
Luminance	0.0545 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223F80 #806322

analogous

#226E80 #223F80 #342280

triadic

#223F80 #80223F #3F8022

tetradic

#223F80 #80226E #806322 #228034

square

#223F80 #80226E #806322 #228034

split-complementary

#223F80 #803422 #6E8022

monochromatic

#080F1F #152750 #223F80 #2F57B0 #4D75D0

Accessibility & contrast

On white

10.04

#223F80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#223F80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223F80

10.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223F80	#FFFFFF	#000000	##FFFFFF
##223F80	1.00	10.04	2.09	10.04
#FFFFFF	10.04	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A4782

Deuteranopia (green-blind)

#003E7F

Tritanopia (blue-blind)

#004E59

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #223f80;
/* rgb */ color: rgb(34, 63, 128);
/* oklch */ color: oklch(38.4% 0.115 263.8);

Tailwind

colors: {
  custom: {
    50: '#6a73a5',
    500: '#223f80',
    950: '#000000',
  },
}

SCSS

$custom: #223f80;
$custom-light: #6a73a5;
$custom-dark: #000000;

JSON

{
  "hex": "#223f80",
  "rgb": {
    "r": 34,
    "g": 63,
    "b": 128
  },
  "hsl": {
    "h": 221.489,
    "s": 58.025,
    "l": 31.765
  },
  "oklch": {
    "l": 0.38372,
    "c": 0.11539,
    "h": 263.8
  },
  "luminance": 0.05454
}

Semantic roles & 50–950 ramp

primary

#223F80

secondary

#B2934B

accent

#B247E1

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #223F80

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

Preview Lab → · Contrast checker → · Palette generator →