#537CE5#537CE5

#537CE5 is a mid, vivid blue. Relative luminance 0.219; OKLCH L 60.9% C 0.165 H 265.7°. Best body text is #000000 at 5.38:1 contrast (WCAG AA passes).

Color values

HEX	#537CE5
RGB	rgb(83, 124, 229)
HSL	hsl(223, 74%, 61%)
HSV	hsv(223, 64%, 90%)
CMYK	cmyk(63.8%, 45.9%, 0%, 10.2%)
CIE-LAB	lab(53.93, 18.56, -57.64)
CIE-LCH	lch(53.93, 60.55, 287.85°)
OKLab	oklab(60.93% -0.0124 -0.1648)
OKLCH	oklch(60.93% 0.165 265.7)
XYZ	xyz(24.9129, 21.9092, 77.0295)
Luminance	0.2191 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537CE5 #E5BC53

analogous

#53C5E5 #537CE5 #7353E5

triadic

#537CE5 #E5537C #7CE553

tetradic

#537CE5 #E553C5 #E5BC53 #53E573

square

#537CE5 #E553C5 #E5BC53 #53E573

split-complementary

#537CE5 #E57353 #C5E553

monochromatic

#1940A5 #2155DA #537CE5 #88A4ED #BDCDF5

Accessibility & contrast

On white

3.90

#537CE5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.38

#537CE5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537CE5

5.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537CE5	#FFFFFF	#000000	##000000
##537CE5	1.00	3.90	5.38	5.38
#FFFFFF	3.90	1.00	21.00	21.00
#000000	5.38	21.00	1.00	1.00
##000000	5.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4888E9

Deuteranopia (green-blind)

#2D7BE3

Tritanopia (blue-blind)

#0094A5

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #537ce5;
/* rgb */ color: rgb(83, 124, 229);
/* oklch */ color: oklch(60.9% 0.165 265.7);

Tailwind

colors: {
  custom: {
    50: '#91a1ee',
    500: '#537ce5',
    950: '#000000',
  },
}

SCSS

$custom: #537ce5;
$custom-light: #91a1ee;
$custom-dark: #000000;

JSON

{
  "hex": "#537ce5",
  "rgb": {
    "r": 83,
    "g": 124,
    "b": 229
  },
  "hsl": {
    "h": 223.151,
    "s": 73.737,
    "l": 61.176
  },
  "oklch": {
    "l": 0.60933,
    "c": 0.16528,
    "h": 265.7
  },
  "luminance": 0.21911
}

Semantic roles & 50–950 ramp

primary

#537CE5

secondary

#E5D6AE

accent

#9E10D6

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #537CE5

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

Preview Lab → · Contrast checker → · Palette generator →