#537DF3#537DF3

#537DF3 is a light, vivid blue. Relative luminance 0.230; OKLCH L 62.1% C 0.183 H 266.4°. Best body text is #000000 at 5.60:1 contrast (WCAG AA passes).

Color values

HEX	#537DF3
RGB	rgb(83, 125, 243)
HSL	hsl(224, 87%, 64%)
HSV	hsv(224, 66%, 95%)
CMYK	cmyk(65.8%, 48.6%, 0%, 4.7%)
CIE-LAB	lab(55.05, 22.75, -63.65)
CIE-LCH	lch(55.05, 67.59, 289.66°)
OKLab	oklab(62.06% -0.0115 -0.1825)
OKLCH	oklch(62.06% 0.183 266.4)
XYZ	xyz(27.0730, 22.9747, 87.7845)
Luminance	0.2298 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537DF3 #F3C953

analogous

#53CDF3 #537DF3 #7953F3

triadic

#537DF3 #F3537D #7DF353

tetradic

#537DF3 #F353CD #F3C953 #53F379

square

#537DF3 #F353CD #F3C953 #53F379

split-complementary

#537DF3 #F37953 #CDF353

monochromatic

#0D3CBE #1A52EF #537DF3 #8CA8F7 #C5D3FB

Accessibility & contrast

On white

3.75

#537DF3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.60

#537DF3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537DF3

5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537DF3	#FFFFFF	#000000	##000000
##537DF3	1.00	3.75	5.60	5.60
#FFFFFF	3.75	1.00	21.00	21.00
#000000	5.60	21.00	1.00	1.00
##000000	5.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C8BF7

Deuteranopia (green-blind)

#0D7DF1

Tritanopia (blue-blind)

#0099AC

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #537df3;
/* rgb */ color: rgb(83, 125, 243);
/* oklch */ color: oklch(62.1% 0.183 266.4);

Tailwind

colors: {
  custom: {
    50: '#93a2f8',
    500: '#537df3',
    950: '#000000',
  },
}

SCSS

$custom: #537df3;
$custom-light: #93a2f8;
$custom-dark: #000000;

JSON

{
  "hex": "#537df3",
  "rgb": {
    "r": 83,
    "g": 125,
    "b": 243
  },
  "hsl": {
    "h": 224.25,
    "s": 86.957,
    "l": 63.922
  },
  "oklch": {
    "l": 0.62059,
    "c": 0.18283,
    "h": 266.4
  },
  "luminance": 0.22977
}

Semantic roles & 50–950 ramp

primary

#537DF3

secondary

#EDDEB5

accent

#A802E4

background

#F9F9FF

surface

#F2F2FF

border

#CCCCD7

text

#0E0F17

muted

#7E7E85

Preview Lab

Preview with #537DF3

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

Preview Lab → · Contrast checker → · Palette generator →