#528BE4#528BE4

#528BE4 is a light, vivid blue. Relative luminance 0.259; OKLCH L 64.0% C 0.147 H 259.0°. Best body text is #000000 at 6.17:1 contrast (WCAG AA passes).

Color values

HEX	#528BE4
RGB	rgb(82, 139, 228)
HSL	hsl(217, 73%, 61%)
HSV	hsv(217, 64%, 89%)
CMYK	cmyk(64%, 39%, 0%, 10.6%)
CIE-LAB	lab(57.90, 8.96, -50.74)
CIE-LCH	lch(57.90, 51.53, 280.02°)
OKLab	oklab(63.96% -0.0281 -0.1444)
OKLCH	oklch(63.96% 0.147 259)
XYZ	xyz(26.7109, 25.8580, 76.9672)
Luminance	0.2586 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#528BE4 #E4AB52

analogous

#52D4E4 #528BE4 #6252E4

triadic

#528BE4 #E4528B #8BE452

tetradic

#528BE4 #E452D4 #E4AB52 #52E462

square

#528BE4 #E452D4 #E4AB52 #52E462

split-complementary

#528BE4 #E46252 #D4E452

monochromatic

#194FA2 #2268D7 #528BE4 #87AEEC #BCD2F5

Accessibility & contrast

On white

3.40

#528BE4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.17

#528BE4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #528BE4

6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##528BE4	#FFFFFF	#000000	##000000
##528BE4	1.00	3.40	6.17	6.17
#FFFFFF	3.40	1.00	21.00	21.00
#000000	6.17	21.00	1.00	1.00
##000000	6.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6393E8

Deuteranopia (green-blind)

#4E85E2

Tritanopia (blue-blind)

#009FAC

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #528be4;
/* rgb */ color: rgb(82, 139, 228);
/* oklch */ color: oklch(64.0% 0.147 259.0);

Tailwind

colors: {
  custom: {
    50: '#90aced',
    500: '#528be4',
    950: '#000000',
  },
}

SCSS

$custom: #528be4;
$custom-light: #90aced;
$custom-dark: #000000;

JSON

{
  "hex": "#528be4",
  "rgb": {
    "r": 82,
    "g": 139,
    "b": 228
  },
  "hsl": {
    "h": 216.575,
    "s": 73,
    "l": 60.784
  },
  "oklch": {
    "l": 0.63964,
    "c": 0.14708,
    "h": 259
  },
  "luminance": 0.25861
}

Semantic roles & 50–950 ramp

primary

#528BE4

secondary

#E5CFAD

accent

#8810D5

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #528BE4

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

Preview Lab → · Contrast checker → · Palette generator →