#223F6F#223F6F

#223F6F is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.1% C 0.090 H 259.9°. Best body text is #FFFFFF at 10.46:1 contrast (WCAG AA passes).

Color values

HEX	#223F6F
RGB	rgb(34, 63, 111)
HSL	hsl(217, 53%, 28%)
HSV	hsv(217, 69%, 44%)
CMYK	cmyk(69.4%, 43.2%, 0%, 56.5%)
CIE-LAB	lab(26.85, 6.37, -31.05)
CIE-LCH	lch(26.85, 31.70, 281.59°)
OKLab	oklab(37.14% -0.0157 -0.0885)
OKLCH	oklch(37.14% 0.09 259.9)
XYZ	xyz(5.3054, 5.0423, 15.7295)
Luminance	0.0504 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223F6F #6F5222

analogous

#22656F #223F6F #2C226F

triadic

#223F6F #6F223F #3F6F22

tetradic

#223F6F #6F2265 #6F5222 #226F2C

square

#223F6F #6F2265 #6F5222 #226F2C

split-complementary

#223F6F #6F2C22 #656F22

monochromatic

#070D17 #142440 #223F6F #305A9E #4576C6

Accessibility & contrast

On white

10.46

#223F6F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#223F6F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223F6F

10.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223F6F	#FFFFFF	#000000	##FFFFFF
##223F6F	1.00	10.46	2.01	10.46
#FFFFFF	10.46	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#294371

Deuteranopia (green-blind)

#1D3C6E

Tritanopia (blue-blind)

#004A51

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #223f6f;
/* rgb */ color: rgb(34, 63, 111);
/* oklch */ color: oklch(37.1% 0.090 259.9);

Tailwind

colors: {
  custom: {
    50: '#667398',
    500: '#223f6f',
    950: '#000000',
  },
}

SCSS

$custom: #223f6f;
$custom-light: #667398;
$custom-dark: #000000;

JSON

{
  "hex": "#223f6f",
  "rgb": {
    "r": 34,
    "g": 63,
    "b": 111
  },
  "hsl": {
    "h": 217.403,
    "s": 53.103,
    "l": 28.431
  },
  "oklch": {
    "l": 0.37136,
    "c": 0.0899,
    "h": 259.9
  },
  "luminance": 0.05043
}

Semantic roles & 50–950 ramp

primary

#223F6F

secondary

#A2814A

accent

#A64BDD

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06080E

muted

#7A7B7E

Preview Lab

Preview with #223F6F

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

Preview Lab → · Contrast checker → · Palette generator →