#537FF3#537FF3

#537FF3 is a light, vivid blue. Relative luminance 0.235; OKLCH L 62.5% C 0.180 H 265.8°. Best body text is #000000 at 5.70:1 contrast (WCAG AA passes).

Color values

HEX	#537FF3
RGB	rgb(83, 127, 243)
HSL	hsl(224, 87%, 64%)
HSV	hsv(224, 66%, 95%)
CMYK	cmyk(65.8%, 47.7%, 0%, 4.7%)
CIE-LAB	lab(55.57, 21.52, -62.81)
CIE-LCH	lch(55.57, 66.39, 288.92°)
OKLab	oklab(62.46% -0.0133 -0.18)
OKLCH	oklch(62.46% 0.18 265.8)
XYZ	xyz(27.3287, 23.4862, 87.8697)
Luminance	0.2349 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537FF3 #F3C753

analogous

#53CFF3 #537FF3 #7753F3

triadic

#537FF3 #F3537F #7FF353

tetradic

#537FF3 #F353CF #F3C753 #53F377

square

#537FF3 #F353CF #F3C753 #53F377

split-complementary

#537FF3 #F37753 #CFF353

monochromatic

#0D3EBE #1A54EF #537FF3 #8CAAF7 #C5D4FB

Accessibility & contrast

On white

3.69

#537FF3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.70

#537FF3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537FF3

5.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537FF3	#FFFFFF	#000000	##000000
##537FF3	1.00	3.69	5.70	5.70
#FFFFFF	3.69	1.00	21.00	21.00
#000000	5.70	21.00	1.00	1.00
##000000	5.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#418DF7

Deuteranopia (green-blind)

#1A7EF1

Tritanopia (blue-blind)

#009AAD

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #537ff3;
/* rgb */ color: rgb(83, 127, 243);
/* oklch */ color: oklch(62.5% 0.180 265.8);

Tailwind

colors: {
  custom: {
    50: '#93a3f8',
    500: '#537ff3',
    950: '#000000',
  },
}

SCSS

$custom: #537ff3;
$custom-light: #93a3f8;
$custom-dark: #000000;

JSON

{
  "hex": "#537ff3",
  "rgb": {
    "r": 83,
    "g": 127,
    "b": 243
  },
  "hsl": {
    "h": 223.5,
    "s": 86.957,
    "l": 63.922
  },
  "oklch": {
    "l": 0.62458,
    "c": 0.18046,
    "h": 265.8
  },
  "luminance": 0.23489
}

Semantic roles & 50–950 ramp

primary

#537FF3

secondary

#EDDEB5

accent

#A502E4

background

#F9FAFF

surface

#F2F3FF

border

#CCCDD7

text

#0E0F17

muted

#7E7F85

Preview Lab

Preview with #537FF3

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

Preview Lab → · Contrast checker → · Palette generator →