#528BF1#528BF1

#528BF1 is a light, vivid blue. Relative luminance 0.266; OKLCH L 64.7% C 0.164 H 261.1°. Best body text is #000000 at 6.32:1 contrast (WCAG AA passes).

Color values

HEX	#528BF1
RGB	rgb(82, 139, 241)
HSL	hsl(218, 85%, 63%)
HSV	hsv(218, 66%, 95%)
CMYK	cmyk(66%, 42.3%, 0%, 5.5%)
CIE-LAB	lab(58.61, 13.40, -56.83)
CIE-LCH	lch(58.61, 58.39, 283.27°)
OKLab	oklab(64.74% -0.0254 -0.1622)
OKLCH	oklch(64.74% 0.164 261.1)
XYZ	xyz(28.5838, 26.6071, 86.8313)
Luminance	0.2661 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#528BF1 #F1B852

analogous

#52DAF1 #528BF1 #6852F1

triadic

#528BF1 #F1528B #8BF152

tetradic

#528BF1 #F152DA #F1B852 #52F168

square

#528BF1 #F152DA #F1B852 #52F168

split-complementary

#528BF1 #F16852 #DAF152

monochromatic

#0F4CBA #1965EC #528BF1 #8BB1F6 #C3D7FA

Accessibility & contrast

On white

3.32

#528BF1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.32

#528BF1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #528BF1

6.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##528BF1	#FFFFFF	#000000	##000000
##528BF1	1.00	3.32	6.32	6.32
#FFFFFF	3.32	1.00	21.00	21.00
#000000	6.32	21.00	1.00	1.00
##000000	6.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B95F5

Deuteranopia (green-blind)

#4186EF

Tritanopia (blue-blind)

#00A2B2

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #528bf1;
/* rgb */ color: rgb(82, 139, 241);
/* oklch */ color: oklch(64.7% 0.164 261.1);

Tailwind

colors: {
  custom: {
    50: '#92acf6',
    500: '#528bf1',
    950: '#000000',
  },
}

SCSS

$custom: #528bf1;
$custom-light: #92acf6;
$custom-dark: #000000;

JSON

{
  "hex": "#528bf1",
  "rgb": {
    "r": 82,
    "g": 139,
    "b": 241
  },
  "hsl": {
    "h": 218.491,
    "s": 85.027,
    "l": 63.333
  },
  "oklch": {
    "l": 0.64741,
    "c": 0.16422,
    "h": 261.1
  },
  "luminance": 0.2661
}

Semantic roles & 50–950 ramp

primary

#528BF1

secondary

#ECD7B3

accent

#9204E2

background

#F9FAFF

surface

#F2F4FE

border

#CCCED6

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #528BF1

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

Preview Lab → · Contrast checker → · Palette generator →