#5366B3#5366B3

#5366B3 is a mid, vivid blue. Relative luminance 0.146; OKLCH L 53.2% C 0.123 H 271.3°. Best body text is #FFFFFF at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#5366B3
RGB	rgb(83, 102, 179)
HSL	hsl(228, 39%, 51%)
HSV	hsv(228, 54%, 70%)
CMYK	cmyk(53.6%, 43%, 0%, 29.8%)
CIE-LAB	lab(45.07, 15.40, -43.22)
CIE-LCH	lch(45.07, 45.88, 289.62°)
OKLab	oklab(53.21% 0.0027 -0.1227)
OKLCH	oklch(53.21% 0.123 271.3)
XYZ	xyz(16.4527, 14.5953, 44.5893)
Luminance	0.1460 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5366B3 #B3A053

analogous

#5396B3 #5366B3 #7053B3

triadic

#5366B3 #B35366 #66B353

tetradic

#5366B3 #B35396 #B3A053 #53B370

square

#5366B3 #B35396 #B3A053 #53B370

split-complementary

#5366B3 #B37053 #96B353

monochromatic

#2B3561 #3E4D8B #5366B3 #7D8CC6 #A8B2D9

Accessibility & contrast

On white

5.36

#5366B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.92

#5366B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5366B3

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5366B3	#FFFFFF	#000000	##FFFFFF
##5366B3	1.00	5.36	3.92	5.36
#FFFFFF	5.36	1.00	21.00	1.00
#000000	3.92	21.00	1.00	21.00
##FFFFFF	5.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#466FB6

Deuteranopia (green-blind)

#3B67B1

Tritanopia (blue-blind)

#247784

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #5366b3;
/* rgb */ color: rgb(83, 102, 179);
/* oklch */ color: oklch(53.2% 0.123 271.3);

Tailwind

colors: {
  custom: {
    50: '#8a91ca',
    500: '#5366b3',
    950: '#000000',
  },
}

SCSS

$custom: #5366b3;
$custom-light: #8a91ca;
$custom-dark: #000000;

JSON

{
  "hex": "#5366b3",
  "rgb": {
    "r": 83,
    "g": 102,
    "b": 179
  },
  "hsl": {
    "h": 228.125,
    "s": 38.71,
    "l": 51.373
  },
  "oklch": {
    "l": 0.53213,
    "c": 0.12275,
    "h": 271.3
  },
  "luminance": 0.14596
}

Semantic roles & 50–950 ramp

primary

#5366B3

secondary

#C6BE9C

accent

#B759CF

background

#F8F8FC

surface

#F0F0F8

border

#CBCBD1

text

#0C0C13

muted

#7D7D82

Preview Lab

Preview with #5366B3

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

Preview Lab → · Contrast checker → · Palette generator →