#537CE4#537CE4

#537CE4 is a mid, vivid blue. Relative luminance 0.219; OKLCH L 60.9% C 0.164 H 265.6°. Best body text is #000000 at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#537CE4
RGB	rgb(83, 124, 228)
HSL	hsl(223, 73%, 61%)
HSV	hsv(223, 64%, 89%)
CMYK	cmyk(63.6%, 45.6%, 0%, 10.6%)
CIE-LAB	lab(53.87, 18.22, -57.17)
CIE-LCH	lch(53.87, 60.01, 287.68°)
OKLab	oklab(60.87% -0.0126 -0.1634)
OKLCH	oklch(60.87% 0.164 265.6)
XYZ	xyz(24.7737, 21.8535, 76.2963)
Luminance	0.2186 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537CE4 #E4BB53

analogous

#53C5E4 #537CE4 #7253E4

triadic

#537CE4 #E4537C #7CE453

tetradic

#537CE4 #E453C5 #E4BB53 #53E472

square

#537CE4 #E453C5 #E4BB53 #53E472

split-complementary

#537CE4 #E47253 #C5E453

monochromatic

#1A40A3 #2255D8 #537CE4 #88A4EC #BDCDF5

Accessibility & contrast

On white

3.91

#537CE4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.37

#537CE4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537CE4

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537CE4	#FFFFFF	#000000	##000000
##537CE4	1.00	3.91	5.37	5.37
#FFFFFF	3.91	1.00	21.00	21.00
#000000	5.37	21.00	1.00	1.00
##000000	5.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4988E8

Deuteranopia (green-blind)

#2F7BE2

Tritanopia (blue-blind)

#0094A5

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #537ce4;
/* rgb */ color: rgb(83, 124, 228);
/* oklch */ color: oklch(60.9% 0.164 265.6);

Tailwind

colors: {
  custom: {
    50: '#91a1ed',
    500: '#537ce4',
    950: '#000000',
  },
}

SCSS

$custom: #537ce4;
$custom-light: #91a1ed;
$custom-dark: #000000;

JSON

{
  "hex": "#537ce4",
  "rgb": {
    "r": 83,
    "g": 124,
    "b": 228
  },
  "hsl": {
    "h": 223.034,
    "s": 72.864,
    "l": 60.98
  },
  "oklch": {
    "l": 0.60869,
    "c": 0.16392,
    "h": 265.6
  },
  "luminance": 0.21856
}

Semantic roles & 50–950 ramp

primary

#537CE4

secondary

#E5D5AE

accent

#9D11D5

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #537CE4

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

Preview Lab → · Contrast checker → · Palette generator →