#528BF4#528BF4

#528BF4 is a light, vivid blue. Relative luminance 0.268; OKLCH L 64.9% C 0.168 H 261.5°. Best body text is #000000 at 6.36:1 contrast (WCAG AA passes).

Color values

HEX	#528BF4
RGB	rgb(82, 139, 244)
HSL	hsl(219, 88%, 64%)
HSV	hsv(219, 66%, 96%)
CMYK	cmyk(66.4%, 43%, 0%, 4.3%)
CIE-LAB	lab(58.78, 14.43, -58.22)
CIE-LCH	lch(58.78, 59.98, 283.92°)
OKLab	oklab(64.93% -0.0249 -0.1663)
OKLCH	oklch(64.93% 0.168 261.5)
XYZ	xyz(29.0356, 26.7878, 89.2108)
Luminance	0.2679 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#528BF4 #F4BB52

analogous

#52DCF4 #528BF4 #6A52F4

triadic

#528BF4 #F4528B #8BF452

tetradic

#528BF4 #F452DC #F4BB52 #52F46A

square

#528BF4 #F452DC #F4BB52 #52F46A

split-complementary

#528BF4 #F46A52 #DCF452

monochromatic

#0C4BBF #1864F0 #528BF4 #8CB2F8 #C5D8FB

Accessibility & contrast

On white

3.30

#528BF4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.36

#528BF4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #528BF4

6.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##528BF4	#FFFFFF	#000000	##000000
##528BF4	1.00	3.30	6.36	6.36
#FFFFFF	3.30	1.00	21.00	21.00
#000000	6.36	21.00	1.00	1.00
##000000	6.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5995F8

Deuteranopia (green-blind)

#3D86F2

Tritanopia (blue-blind)

#00A3B4

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #528bf4;
/* rgb */ color: rgb(82, 139, 244);
/* oklch */ color: oklch(64.9% 0.168 261.5);

Tailwind

colors: {
  custom: {
    50: '#92acf8',
    500: '#528bf4',
    950: '#000000',
  },
}

SCSS

$custom: #528bf4;
$custom-light: #92acf8;
$custom-dark: #000000;

JSON

{
  "hex": "#528bf4",
  "rgb": {
    "r": 82,
    "g": 139,
    "b": 244
  },
  "hsl": {
    "h": 218.889,
    "s": 88.043,
    "l": 63.922
  },
  "oklch": {
    "l": 0.64926,
    "c": 0.16817,
    "h": 261.5
  },
  "luminance": 0.26791
}

Semantic roles & 50–950 ramp

primary

#528BF4

secondary

#EDD9B4

accent

#9401E5

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #528BF4

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

Preview Lab → · Contrast checker → · Palette generator →