#537AF3#537AF3

#537AF3 is a mid, vivid blue. Relative luminance 0.222; OKLCH L 61.5% C 0.186 H 267.3°. Best body text is #000000 at 5.45:1 contrast (WCAG AA passes).

Color values

HEX	#537AF3
RGB	rgb(83, 122, 243)
HSL	hsl(225, 87%, 64%)
HSV	hsv(225, 66%, 95%)
CMYK	cmyk(65.8%, 49.8%, 0%, 4.7%)
CIE-LAB	lab(54.27, 24.58, -64.91)
CIE-LCH	lch(54.27, 69.41, 290.74°)
OKLab	oklab(61.47% -0.0088 -0.1862)
OKLCH	oklch(61.47% 0.186 267.3)
XYZ	xyz(26.6989, 22.2266, 87.6598)
Luminance	0.2223 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537AF3 #F3CC53

analogous

#53CAF3 #537AF3 #7C53F3

triadic

#537AF3 #F3537A #7AF353

tetradic

#537AF3 #F353CA #F3CC53 #53F37C

square

#537AF3 #F353CA #F3CC53 #53F37C

split-complementary

#537AF3 #F37C53 #CAF353

monochromatic

#0D38BE #1A4EEF #537AF3 #8CA6F7 #C5D2FB

Accessibility & contrast

On white

3.86

#537AF3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.45

#537AF3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537AF3

5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537AF3	#FFFFFF	#000000	##000000
##537AF3	1.00	3.86	5.45	5.45
#FFFFFF	3.86	1.00	21.00	21.00
#000000	5.45	21.00	1.00	1.00
##000000	5.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3489F7

Deuteranopia (green-blind)

#007BF1

Tritanopia (blue-blind)

#0096AB

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #537af3;
/* rgb */ color: rgb(83, 122, 243);
/* oklch */ color: oklch(61.5% 0.186 267.3);

Tailwind

colors: {
  custom: {
    50: '#939ff8',
    500: '#537af3',
    950: '#000000',
  },
}

SCSS

$custom: #537af3;
$custom-light: #939ff8;
$custom-dark: #000000;

JSON

{
  "hex": "#537af3",
  "rgb": {
    "r": 83,
    "g": 122,
    "b": 243
  },
  "hsl": {
    "h": 225.375,
    "s": 86.957,
    "l": 63.922
  },
  "oklch": {
    "l": 0.61466,
    "c": 0.18642,
    "h": 267.3
  },
  "luminance": 0.22229
}

Semantic roles & 50–950 ramp

primary

#537AF3

secondary

#EDDFB5

accent

#AD02E4

background

#F9F9FF

surface

#F2F2FF

border

#CCCCD7

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #537AF3

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

Preview Lab → · Contrast checker → · Palette generator →