#537CE0#537CE0

#537CE0 is a mid, vivid blue. Relative luminance 0.216; OKLCH L 60.6% C 0.159 H 265.2°. Best body text is #000000 at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#537CE0
RGB	rgb(83, 124, 224)
HSL	hsl(223, 69%, 60%)
HSV	hsv(223, 63%, 88%)
CMYK	cmyk(62.9%, 44.6%, 0%, 12.2%)
CIE-LAB	lab(53.64, 16.86, -55.31)
CIE-LCH	lch(53.64, 57.82, 286.95°)
OKLab	oklab(60.61% -0.0132 -0.1579)
OKLCH	oklch(60.61% 0.159 265.2)
XYZ	xyz(24.2248, 21.6339, 73.4057)
Luminance	0.2164 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537CE0 #E0B753

analogous

#53C3E0 #537CE0 #7053E0

triadic

#537CE0 #E0537C #7CE053

tetradic

#537CE0 #E053C3 #E0B753 #53E070

square

#537CE0 #E053C3 #E0B753 #53E070

split-complementary

#537CE0 #E07053 #C3E053

monochromatic

#1C419C #2657D0 #537CE0 #87A3E9 #BBCBF3

Accessibility & contrast

On white

3.94

#537CE0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.33

#537CE0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537CE0

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537CE0	#FFFFFF	#000000	##000000
##537CE0	1.00	3.94	5.33	5.33
#FFFFFF	3.94	1.00	21.00	21.00
#000000	5.33	21.00	1.00	1.00
##000000	5.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C87E4

Deuteranopia (green-blind)

#357ADE

Tritanopia (blue-blind)

#0093A3

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #537ce0;
/* rgb */ color: rgb(83, 124, 224);
/* oklch */ color: oklch(60.6% 0.159 265.2);

Tailwind

colors: {
  custom: {
    50: '#90a1ea',
    500: '#537ce0',
    950: '#000000',
  },
}

SCSS

$custom: #537ce0;
$custom-light: #90a1ea;
$custom-dark: #000000;

JSON

{
  "hex": "#537ce0",
  "rgb": {
    "r": 83,
    "g": 124,
    "b": 224
  },
  "hsl": {
    "h": 222.553,
    "s": 69.458,
    "l": 60.196
  },
  "oklch": {
    "l": 0.60613,
    "c": 0.1585,
    "h": 265.2
  },
  "luminance": 0.21636
}

Semantic roles & 50–950 ramp

primary

#537CE0

secondary

#E2D3AC

accent

#9A14D1

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #537CE0

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

Preview Lab → · Contrast checker → · Palette generator →