#5366CB#5366CB

#5366CB is a mid, vivid blue. Relative luminance 0.157; OKLCH L 54.8% C 0.157 H 272.2°. Best body text is #FFFFFF at 5.08:1 contrast (WCAG AA passes).

Color values

HEX	#5366CB
RGB	rgb(83, 102, 203)
HSL	hsl(231, 54%, 56%)
HSV	hsv(231, 59%, 80%)
CMYK	cmyk(59.1%, 49.8%, 0%, 20.4%)
CIE-LAB	lab(46.51, 23.38, -54.81)
CIE-LCH	lch(46.51, 59.59, 293.10°)
OKLab	oklab(54.77% 0.0061 -0.1568)
OKLCH	oklch(54.77% 0.157 272.2)
XYZ	xyz(19.0946, 15.6520, 58.5033)
Luminance	0.1565 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5366CB #CBB853

analogous

#53A2CB #5366CB #7C53CB

triadic

#5366CB #CB5366 #66CB53

tetradic

#5366CB #CB53A2 #CBB853 #53CB7C

square

#5366CB #CB53A2 #CBB853 #53CB7C

split-complementary

#5366CB #CB7C53 #A2CB53

monochromatic

#26347E #3447AD #5366CB #8290D9 #B1BAE7

Accessibility & contrast

On white

5.08

#5366CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.13

#5366CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5366CB

5.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5366CB	#FFFFFF	#000000	##FFFFFF
##5366CB	1.00	5.08	4.13	5.08
#FFFFFF	5.08	1.00	21.00	1.00
#000000	4.13	21.00	1.00	21.00
##FFFFFF	5.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3174CF

Deuteranopia (green-blind)

#1969C9

Tritanopia (blue-blind)

#007D8F

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #5366cb;
/* rgb */ color: rgb(83, 102, 203);
/* oklch */ color: oklch(54.8% 0.157 272.2);

Tailwind

colors: {
  custom: {
    50: '#8e91db',
    500: '#5366cb',
    950: '#000000',
  },
}

SCSS

$custom: #5366cb;
$custom-light: #8e91db;
$custom-dark: #000000;

JSON

{
  "hex": "#5366cb",
  "rgb": {
    "r": 83,
    "g": 102,
    "b": 203
  },
  "hsl": {
    "h": 230.5,
    "s": 53.571,
    "l": 56.078
  },
  "oklch": {
    "l": 0.54774,
    "c": 0.15688,
    "h": 272.2
  },
  "luminance": 0.15654
}

Semantic roles & 50–950 ramp

primary

#5366CB

secondary

#D6CEA4

accent

#C64BDD

background

#F9F8FD

surface

#F1F0FB

border

#CBCBD4

text

#0D0C15

muted

#7E7D83

Preview Lab

Preview with #5366CB

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

Preview Lab → · Contrast checker → · Palette generator →