#5366B2#5366B2

#5366B2 is a mid, vivid blue. Relative luminance 0.146; OKLCH L 53.2% C 0.121 H 271.2°. Best body text is #FFFFFF at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#5366B2
RGB	rgb(83, 102, 178)
HSL	hsl(228, 38%, 51%)
HSV	hsv(228, 53%, 70%)
CMYK	cmyk(53.4%, 42.7%, 0%, 30.2%)
CIE-LAB	lab(45.02, 15.08, -42.72)
CIE-LCH	lch(45.02, 45.31, 289.44°)
OKLab	oklab(53.15% 0.0025 -0.1213)
OKLCH	oklch(53.15% 0.121 271.2)
XYZ	xyz(16.3519, 14.5550, 44.0586)
Luminance	0.1456 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5366B2 #B29F53

analogous

#5395B2 #5366B2 #6F53B2

triadic

#5366B2 #B25366 #66B253

tetradic

#5366B2 #B25395 #B29F53 #53B26F

square

#5366B2 #B25395 #B29F53 #53B26F

split-complementary

#5366B2 #B26F53 #95B253

monochromatic

#2B3560 #3E4D8A #5366B2 #7D8CC5 #A8B1D8

Accessibility & contrast

On white

5.37

#5366B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.91

#5366B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5366B2

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5366B2	#FFFFFF	#000000	##FFFFFF
##5366B2	1.00	5.37	3.91	5.37
#FFFFFF	5.37	1.00	21.00	1.00
#000000	3.91	21.00	1.00	21.00
##FFFFFF	5.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#466FB5

Deuteranopia (green-blind)

#3C67B0

Tritanopia (blue-blind)

#257683

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #5366b2;
/* rgb */ color: rgb(83, 102, 178);
/* oklch */ color: oklch(53.2% 0.121 271.2);

Tailwind

colors: {
  custom: {
    50: '#8a91c9',
    500: '#5366b2',
    950: '#000000',
  },
}

SCSS

$custom: #5366b2;
$custom-light: #8a91c9;
$custom-dark: #000000;

JSON

{
  "hex": "#5366b2",
  "rgb": {
    "r": 83,
    "g": 102,
    "b": 178
  },
  "hsl": {
    "h": 228,
    "s": 38.153,
    "l": 51.176
  },
  "oklch": {
    "l": 0.53152,
    "c": 0.1213,
    "h": 271.2
  },
  "luminance": 0.14556
}

Semantic roles & 50–950 ramp

primary

#5366B2

secondary

#C5BD9B

accent

#B75ACE

background

#F8F8FC

surface

#F0F0F8

border

#CBCBD1

text

#0C0C13

muted

#7D7D82

Preview Lab

Preview with #5366B2

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

Preview Lab → · Contrast checker → · Palette generator →