#5366B0#5366B0

#5366B0 is a mid, moderate blue. Relative luminance 0.145; OKLCH L 53.0% C 0.118 H 271.0°. Best body text is #FFFFFF at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#5366B0
RGB	rgb(83, 102, 176)
HSL	hsl(228, 37%, 51%)
HSV	hsv(228, 53%, 69%)
CMYK	cmyk(52.8%, 42%, 0%, 31%)
CIE-LAB	lab(44.91, 14.42, -41.73)
CIE-LCH	lch(44.91, 44.15, 289.06°)
OKLab	oklab(53.03% 0.0022 -0.1184)
OKLCH	oklch(53.03% 0.118 271)
XYZ	xyz(16.1526, 14.4752, 43.0087)
Luminance	0.1448 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5366B0 #B09D53

analogous

#5394B0 #5366B0 #6E53B0

triadic

#5366B0 #B05366 #66B053

tetradic

#5366B0 #B05394 #B09D53 #53B06E

square

#5366B0 #B05394 #B09D53 #53B06E

split-complementary

#5366B0 #B06E53 #94B053

monochromatic

#2B355E #3E4D88 #5366B0 #7D8BC3 #A7B1D7

Accessibility & contrast

On white

5.39

#5366B0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.90

#5366B0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5366B0

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5366B0	#FFFFFF	#000000	##FFFFFF
##5366B0	1.00	5.39	3.90	5.39
#FFFFFF	5.39	1.00	21.00	1.00
#000000	3.90	21.00	1.00	21.00
##FFFFFF	5.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#486FB3

Deuteranopia (green-blind)

#3D66AE

Tritanopia (blue-blind)

#287682

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #5366b0;
/* rgb */ color: rgb(83, 102, 176);
/* oklch */ color: oklch(53.0% 0.118 271.0);

Tailwind

colors: {
  custom: {
    50: '#8a91c8',
    500: '#5366b0',
    950: '#000000',
  },
}

SCSS

$custom: #5366b0;
$custom-light: #8a91c8;
$custom-dark: #000000;

JSON

{
  "hex": "#5366b0",
  "rgb": {
    "r": 83,
    "g": 102,
    "b": 176
  },
  "hsl": {
    "h": 227.742,
    "s": 37.052,
    "l": 50.784
  },
  "oklch": {
    "l": 0.5303,
    "c": 0.11839,
    "h": 271
  },
  "luminance": 0.14476
}

Semantic roles & 50–950 ramp

primary

#5366B0

secondary

#C4BC9B

accent

#B65BCD

background

#F8F8FC

surface

#F0F0F8

border

#CBCBD1

text

#0C0C13

muted

#7D7D82

Preview Lab

Preview with #5366B0

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

Preview Lab → · Contrast checker → · Palette generator →