#528BEF#528BEF

#528BEF is a light, vivid blue. Relative luminance 0.265; OKLCH L 64.6% C 0.162 H 260.8°. Best body text is #000000 at 6.30:1 contrast (WCAG AA passes).

Color values

HEX	#528BEF
RGB	rgb(82, 139, 239)
HSL	hsl(218, 83%, 63%)
HSV	hsv(218, 66%, 94%)
CMYK	cmyk(65.7%, 41.8%, 0%, 6.3%)
CIE-LAB	lab(58.50, 12.71, -55.90)
CIE-LCH	lch(58.50, 57.33, 282.81°)
OKLab	oklab(64.62% -0.0258 -0.1595)
OKLCH	oklch(64.62% 0.162 260.8)
XYZ	xyz(28.2867, 26.4883, 85.2666)
Luminance	0.2649 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#528BEF #EFB652

analogous

#52D9EF #528BEF #6852EF

triadic

#528BEF #EF528B #8BEF52

tetradic

#528BEF #EF52D9 #EFB652 #52EF68

square

#528BEF #EF52D9 #EFB652 #52EF68

split-complementary

#528BEF #EF6852 #D9EF52

monochromatic

#114DB6 #1A65EA #528BEF #8AB1F4 #C2D6F9

Accessibility & contrast

On white

3.33

#528BEF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.30

#528BEF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #528BEF

6.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##528BEF	#FFFFFF	#000000	##000000
##528BEF	1.00	3.33	6.30	6.30
#FFFFFF	3.33	1.00	21.00	21.00
#000000	6.30	21.00	1.00	1.00
##000000	6.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C94F3

Deuteranopia (green-blind)

#4386ED

Tritanopia (blue-blind)

#00A2B1

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #528bef;
/* rgb */ color: rgb(82, 139, 239);
/* oklch */ color: oklch(64.6% 0.162 260.8);

Tailwind

colors: {
  custom: {
    50: '#92acf5',
    500: '#528bef',
    950: '#000000',
  },
}

SCSS

$custom: #528bef;
$custom-light: #92acf5;
$custom-dark: #000000;

JSON

{
  "hex": "#528bef",
  "rgb": {
    "r": 82,
    "g": 139,
    "b": 239
  },
  "hsl": {
    "h": 218.217,
    "s": 83.069,
    "l": 62.941
  },
  "oklch": {
    "l": 0.64619,
    "c": 0.16159,
    "h": 260.8
  },
  "luminance": 0.26491
}

Semantic roles & 50–950 ramp

primary

#528BEF

secondary

#EBD6B2

accent

#9106DF

background

#F9FAFF

surface

#F2F4FE

border

#CCCED6

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #528BEF

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

Preview Lab → · Contrast checker → · Palette generator →