#222F8B#222F8B

#222F8B is a dark, vivid blue. Relative luminance 0.042; OKLCH L 36.0% C 0.152 H 270.3°. Best body text is #FFFFFF at 11.37:1 contrast (WCAG AA passes).

Color values

HEX	#222F8B
RGB	rgb(34, 47, 139)
HSL	hsl(233, 61%, 34%)
HSV	hsv(233, 76%, 55%)
CMYK	cmyk(75.5%, 66.2%, 0%, 45.5%)
CIE-LAB	lab(24.44, 28.42, -52.59)
CIE-LCH	lch(24.44, 59.78, 298.39°)
OKLab	oklab(35.99% 0.0009 -0.152)
OKLCH	oklch(35.99% 0.152 270.3)
XYZ	xyz(6.3348, 4.2365, 24.9050)
Luminance	0.0424 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#222F8B #8B7E22

analogous

#22648B #222F8B #4A228B

triadic

#222F8B #8B222F #2F8B22

tetradic

#222F8B #8B2264 #8B7E22 #228B4A

square

#222F8B #8B2264 #8B7E22 #228B4A

split-complementary

#222F8B #8B4A22 #648B22

monochromatic

#0A0E29 #161E5A #222F8B #2E40BC #5363D5

Accessibility & contrast

On white

11.37

#222F8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#222F8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #222F8B

11.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##222F8B	#FFFFFF	#000000	##FFFFFF
##222F8B	1.00	11.37	1.85	11.37
#FFFFFF	11.37	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F8E

Deuteranopia (green-blind)

#003589

Tritanopia (blue-blind)

#004758

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #222f8b;
/* rgb */ color: rgb(34, 47, 139);
/* oklch */ color: oklch(36.0% 0.152 270.3);

Tailwind

colors: {
  custom: {
    50: '#6e67ae',
    500: '#222f8b',
    950: '#000000',
  },
}

SCSS

$custom: #222f8b;
$custom-light: #6e67ae;
$custom-dark: #000000;

JSON

{
  "hex": "#222f8b",
  "rgb": {
    "r": 34,
    "g": 47,
    "b": 139
  },
  "hsl": {
    "h": 232.571,
    "s": 60.694,
    "l": 33.922
  },
  "oklch": {
    "l": 0.35994,
    "c": 0.15204,
    "h": 270.3
  },
  "luminance": 0.04237
}

Semantic roles & 50–950 ramp

primary

#222F8B

secondary

#B8AC50

accent

#D044E4

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #222F8B

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

Preview Lab → · Contrast checker → · Palette generator →