#537FE0#537FE0

#537FE0 is a mid, vivid blue. Relative luminance 0.224; OKLCH L 61.2% C 0.155 H 264.0°. Best body text is #000000 at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#537FE0
RGB	rgb(83, 127, 224)
HSL	hsl(221, 69%, 60%)
HSV	hsv(221, 63%, 88%)
CMYK	cmyk(62.9%, 43.3%, 0%, 12.2%)
CIE-LAB	lab(54.45, 15.02, -54.01)
CIE-LCH	lch(54.45, 56.06, 285.54°)
OKLab	oklab(61.23% -0.0161 -0.1541)
OKLCH	oklch(61.23% 0.155 264)
XYZ	xyz(24.6065, 22.3973, 73.5329)
Luminance	0.2240 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537FE0 #E0B453

analogous

#53C5E0 #537FE0 #6E53E0

triadic

#537FE0 #E0537F #7FE053

tetradic

#537FE0 #E053C5 #E0B453 #53E06E

square

#537FE0 #E053C5 #E0B453 #53E06E

split-complementary

#537FE0 #E06E53 #C5E053

monochromatic

#1C449C #265BD0 #537FE0 #87A6E9 #BBCCF3

Accessibility & contrast

On white

3.83

#537FE0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.48

#537FE0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537FE0

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537FE0	#FFFFFF	#000000	##000000
##537FE0	1.00	3.83	5.48	5.48
#FFFFFF	3.83	1.00	21.00	21.00
#000000	5.48	21.00	1.00	1.00
##000000	5.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5289E4

Deuteranopia (green-blind)

#3C7CDE

Tritanopia (blue-blind)

#0095A4

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #537fe0;
/* rgb */ color: rgb(83, 127, 224);
/* oklch */ color: oklch(61.2% 0.155 264.0);

Tailwind

colors: {
  custom: {
    50: '#90a3ea',
    500: '#537fe0',
    950: '#000000',
  },
}

SCSS

$custom: #537fe0;
$custom-light: #90a3ea;
$custom-dark: #000000;

JSON

{
  "hex": "#537fe0",
  "rgb": {
    "r": 83,
    "g": 127,
    "b": 224
  },
  "hsl": {
    "h": 221.277,
    "s": 69.458,
    "l": 60.196
  },
  "oklch": {
    "l": 0.61235,
    "c": 0.15495,
    "h": 264
  },
  "luminance": 0.224
}

Semantic roles & 50–950 ramp

primary

#537FE0

secondary

#E2D2AC

accent

#9614D1

background

#F9FAFE

surface

#F2F3FD

border

#CCCDD5

text

#0E0F16

muted

#7E7F84

Preview Lab

Preview with #537FE0

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

Preview Lab → · Contrast checker → · Palette generator →