#537BE0#537BE0

#537BE0 is a mid, vivid blue. Relative luminance 0.214; OKLCH L 60.4% C 0.160 H 265.6°. Best body text is #000000 at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#537BE0
RGB	rgb(83, 123, 224)
HSL	hsl(223, 69%, 60%)
HSV	hsv(223, 63%, 88%)
CMYK	cmyk(62.9%, 45.1%, 0%, 12.2%)
CIE-LAB	lab(53.37, 17.47, -55.74)
CIE-LCH	lch(53.37, 58.41, 287.40°)
OKLab	oklab(60.41% -0.0122 -0.1592)
OKLCH	oklch(60.41% 0.16 265.6)
XYZ	xyz(24.1001, 21.3846, 73.3641)
Luminance	0.2139 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537BE0 #E0B853

analogous

#53C1E0 #537BE0 #7253E0

triadic

#537BE0 #E0537B #7BE053

tetradic

#537BE0 #E053C1 #E0B853 #53E072

square

#537BE0 #E053C1 #E0B853 #53E072

split-complementary

#537BE0 #E07253 #C1E053

monochromatic

#1C419C #2656D0 #537BE0 #87A3E9 #BBCBF3

Accessibility & contrast

On white

3.98

#537BE0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.28

#537BE0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537BE0

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537BE0	#FFFFFF	#000000	##000000
##537BE0	1.00	3.98	5.28	5.28
#FFFFFF	3.98	1.00	21.00	21.00
#000000	5.28	21.00	1.00	1.00
##000000	5.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A86E4

Deuteranopia (green-blind)

#3279DE

Tritanopia (blue-blind)

#0092A3

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #537be0;
/* rgb */ color: rgb(83, 123, 224);
/* oklch */ color: oklch(60.4% 0.160 265.6);

Tailwind

colors: {
  custom: {
    50: '#90a0ea',
    500: '#537be0',
    950: '#000000',
  },
}

SCSS

$custom: #537be0;
$custom-light: #90a0ea;
$custom-dark: #000000;

JSON

{
  "hex": "#537be0",
  "rgb": {
    "r": 83,
    "g": 123,
    "b": 224
  },
  "hsl": {
    "h": 222.979,
    "s": 69.458,
    "l": 60.196
  },
  "oklch": {
    "l": 0.60407,
    "c": 0.1597,
    "h": 265.6
  },
  "luminance": 0.21387
}

Semantic roles & 50–950 ramp

primary

#537BE0

secondary

#E2D3AC

accent

#9C14D1

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #537BE0

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

Preview Lab → · Contrast checker → · Palette generator →