#5566B2#5566B2

#5566B2 is a mid, vivid blue. Relative luminance 0.146; OKLCH L 53.3% C 0.121 H 272.2°. Best body text is #FFFFFF at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#5566B2
RGB	rgb(85, 102, 178)
HSL	hsl(229, 38%, 52%)
HSV	hsv(229, 52%, 70%)
CMYK	cmyk(52.2%, 42.7%, 0%, 30.2%)
CIE-LAB	lab(45.15, 15.53, -42.51)
CIE-LCH	lch(45.15, 45.26, 290.07°)
OKLab	oklab(53.28% 0.0047 -0.1206)
OKLCH	oklch(53.28% 0.121 272.2)
XYZ	xyz(16.5310, 14.6473, 44.0670)
Luminance	0.1465 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5566B2 #B2A155

analogous

#5595B2 #5566B2 #7355B2

triadic

#5566B2 #B25566 #66B255

tetradic

#5566B2 #B25595 #B2A155 #55B273

square

#5566B2 #B25595 #B2A155 #55B273

split-complementary

#5566B2 #B27355 #95B255

monochromatic

#2C3661 #3F4D8B #5566B2 #7F8CC5 #A9B2D8

Accessibility & contrast

On white

5.34

#5566B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.93

#5566B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5566B2

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5566B2	#FFFFFF	#000000	##FFFFFF
##5566B2	1.00	5.34	3.93	5.34
#FFFFFF	5.34	1.00	21.00	1.00
#000000	3.93	21.00	1.00	21.00
##FFFFFF	5.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#476FB5

Deuteranopia (green-blind)

#3D67B0

Tritanopia (blue-blind)

#2B7683

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #5566b2;
/* rgb */ color: rgb(85, 102, 178);
/* oklch */ color: oklch(53.3% 0.121 272.2);

Tailwind

colors: {
  custom: {
    50: '#8b91c9',
    500: '#5566b2',
    950: '#000000',
  },
}

SCSS

$custom: #5566b2;
$custom-light: #8b91c9;
$custom-dark: #000000;

JSON

{
  "hex": "#5566b2",
  "rgb": {
    "r": 85,
    "g": 102,
    "b": 178
  },
  "hsl": {
    "h": 229.032,
    "s": 37.652,
    "l": 51.569
  },
  "oklch": {
    "l": 0.53284,
    "c": 0.1207,
    "h": 272.2
  },
  "luminance": 0.14648
}

Semantic roles & 50–950 ramp

primary

#5566B2

secondary

#C6BE9D

accent

#B95ACE

background

#F8F8FC

surface

#F0F0F8

border

#CBCBD1

text

#0C0C13

muted

#7D7D82

Preview Lab

Preview with #5566B2

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

Preview Lab → · Contrast checker → · Palette generator →