#528BF3#528BF3

#528BF3 is a light, vivid blue. Relative luminance 0.267; OKLCH L 64.9% C 0.167 H 261.4°. Best body text is #000000 at 6.35:1 contrast (WCAG AA passes).

Color values

HEX	#528BF3
RGB	rgb(82, 139, 243)
HSL	hsl(219, 87%, 64%)
HSV	hsv(219, 66%, 95%)
CMYK	cmyk(66.3%, 42.8%, 0%, 4.7%)
CIE-LAB	lab(58.72, 14.08, -57.76)
CIE-LCH	lch(58.72, 59.45, 283.70°)
OKLab	oklab(64.86% -0.0251 -0.165)
OKLCH	oklch(64.86% 0.167 261.4)
XYZ	xyz(28.8842, 26.7273, 88.4133)
Luminance	0.2673 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#528BF3 #F3BA52

analogous

#52DBF3 #528BF3 #6952F3

triadic

#528BF3 #F3528B #8BF352

tetradic

#528BF3 #F352DB #F3BA52 #52F369

square

#528BF3 #F352DB #F3BA52 #52F369

split-complementary

#528BF3 #F36952 #DBF352

monochromatic

#0D4CBD #1965EF #528BF3 #8BB1F7 #C4D8FB

Accessibility & contrast

On white

3.31

#528BF3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.35

#528BF3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #528BF3

6.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##528BF3	#FFFFFF	#000000	##000000
##528BF3	1.00	3.31	6.35	6.35
#FFFFFF	3.31	1.00	21.00	21.00
#000000	6.35	21.00	1.00	1.00
##000000	6.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5995F7

Deuteranopia (green-blind)

#3E86F1

Tritanopia (blue-blind)

#00A3B3

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #528bf3;
/* rgb */ color: rgb(82, 139, 243);
/* oklch */ color: oklch(64.9% 0.167 261.4);

Tailwind

colors: {
  custom: {
    50: '#92acf7',
    500: '#528bf3',
    950: '#000000',
  },
}

SCSS

$custom: #528bf3;
$custom-light: #92acf7;
$custom-dark: #000000;

JSON

{
  "hex": "#528bf3",
  "rgb": {
    "r": 82,
    "g": 139,
    "b": 243
  },
  "hsl": {
    "h": 218.758,
    "s": 87.027,
    "l": 63.725
  },
  "oklch": {
    "l": 0.64864,
    "c": 0.16686,
    "h": 261.4
  },
  "luminance": 0.2673
}

Semantic roles & 50–950 ramp

primary

#528BF3

secondary

#EDD9B4

accent

#9402E4

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #528BF3

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

Preview Lab → · Contrast checker → · Palette generator →