#5366B5#5366B5

#5366B5 is a mid, vivid blue. Relative luminance 0.147; OKLCH L 53.3% C 0.126 H 271.4°. Best body text is #FFFFFF at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#5366B5
RGB	rgb(83, 102, 181)
HSL	hsl(228, 40%, 52%)
HSV	hsv(228, 54%, 71%)
CMYK	cmyk(54.1%, 43.6%, 0%, 29%)
CIE-LAB	lab(45.19, 16.06, -44.21)
CIE-LCH	lch(45.19, 47.03, 289.97°)
OKLab	oklab(53.34% 0.0031 -0.1256)
OKLCH	oklch(53.34% 0.126 271.4)
XYZ	xyz(16.6564, 14.6768, 45.6623)
Luminance	0.1468 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5366B5 #B5A253

analogous

#5397B5 #5366B5 #7153B5

triadic

#5366B5 #B55366 #66B553

tetradic

#5366B5 #B55397 #B5A253 #53B571

square

#5366B5 #B55397 #B5A253 #53B571

split-complementary

#5366B5 #B57153 #97B553

monochromatic

#2B3663 #3D4D8E #5366B5 #7E8CC7 #A9B2DA

Accessibility & contrast

On white

5.34

#5366B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.94

#5366B5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5366B5

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5366B5	#FFFFFF	#000000	##FFFFFF
##5366B5	1.00	5.34	3.94	5.34
#FFFFFF	5.34	1.00	21.00	1.00
#000000	3.94	21.00	1.00	21.00
##FFFFFF	5.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#446FB8

Deuteranopia (green-blind)

#3967B3

Tritanopia (blue-blind)

#227785

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #5366b5;
/* rgb */ color: rgb(83, 102, 181);
/* oklch */ color: oklch(53.3% 0.126 271.4);

Tailwind

colors: {
  custom: {
    50: '#8a91cb',
    500: '#5366b5',
    950: '#000000',
  },
}

SCSS

$custom: #5366b5;
$custom-light: #8a91cb;
$custom-dark: #000000;

JSON

{
  "hex": "#5366b5",
  "rgb": {
    "r": 83,
    "g": 102,
    "b": 181
  },
  "hsl": {
    "h": 228.367,
    "s": 39.837,
    "l": 51.765
  },
  "oklch": {
    "l": 0.53337,
    "c": 0.12565,
    "h": 271.4
  },
  "luminance": 0.14678
}

Semantic roles & 50–950 ramp

primary

#5366B5

secondary

#C7BF9C

accent

#B958D0

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0C13

muted

#7D7D82

Preview Lab

Preview with #5366B5

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

Preview Lab → · Contrast checker → · Palette generator →