#537FF4#537FF4

#537FF4 is a light, vivid blue. Relative luminance 0.235; OKLCH L 62.5% C 0.182 H 265.8°. Best body text is #000000 at 5.71:1 contrast (WCAG AA passes).

Color values

HEX	#537FF4
RGB	rgb(83, 127, 244)
HSL	hsl(224, 88%, 64%)
HSV	hsv(224, 66%, 96%)
CMYK	cmyk(66%, 48%, 0%, 4.3%)
CIE-LAB	lab(55.63, 21.87, -63.26)
CIE-LCH	lch(55.63, 66.94, 289.07°)
OKLab	oklab(62.53% -0.0132 -0.1813)
OKLCH	oklch(62.53% 0.182 265.8)
XYZ	xyz(27.4801, 23.5468, 88.6672)
Luminance	0.2355 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537FF4 #F4C853

analogous

#53D0F4 #537FF4 #7853F4

triadic

#537FF4 #F4537F #7FF453

tetradic

#537FF4 #F453D0 #F4C853 #53F478

square

#537FF4 #F453D0 #F4C853 #53F478

split-complementary

#537FF4 #F47853 #D0F453

monochromatic

#0C3DC0 #1954F0 #537FF4 #8DAAF8 #C6D5FB

Accessibility & contrast

On white

3.68

#537FF4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.71

#537FF4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537FF4

5.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537FF4	#FFFFFF	#000000	##000000
##537FF4	1.00	3.68	5.71	5.71
#FFFFFF	3.68	1.00	21.00	21.00
#000000	5.71	21.00	1.00	1.00
##000000	5.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#408DF8

Deuteranopia (green-blind)

#167EF2

Tritanopia (blue-blind)

#009AAE

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #537ff4;
/* rgb */ color: rgb(83, 127, 244);
/* oklch */ color: oklch(62.5% 0.182 265.8);

Tailwind

colors: {
  custom: {
    50: '#93a3f8',
    500: '#537ff4',
    950: '#000000',
  },
}

SCSS

$custom: #537ff4;
$custom-light: #93a3f8;
$custom-dark: #000000;

JSON

{
  "hex": "#537ff4",
  "rgb": {
    "r": 83,
    "g": 127,
    "b": 244
  },
  "hsl": {
    "h": 223.602,
    "s": 87.978,
    "l": 64.118
  },
  "oklch": {
    "l": 0.62525,
    "c": 0.18179,
    "h": 265.8
  },
  "luminance": 0.23549
}

Semantic roles & 50–950 ramp

primary

#537FF4

secondary

#EDDEB5

accent

#A601E5

background

#F9FAFF

surface

#F2F3FF

border

#CCCDD7

text

#0E0F17

muted

#7E7F85

Preview Lab

Preview with #537FF4

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

Preview Lab → · Contrast checker → · Palette generator →