#537DEB#537DEB

#537DEB is a mid, vivid blue. Relative luminance 0.225; OKLCH L 61.5% C 0.172 H 265.8°. Best body text is #000000 at 5.50:1 contrast (WCAG AA passes).

Color values

HEX	#537DEB
RGB	rgb(83, 125, 235)
HSL	hsl(223, 79%, 62%)
HSV	hsv(223, 65%, 92%)
CMYK	cmyk(64.7%, 46.8%, 0%, 7.8%)
CIE-LAB	lab(54.56, 20.00, -59.99)
CIE-LCH	lch(54.56, 63.24, 288.44°)
OKLab	oklab(61.53% -0.0125 -0.1717)
OKLCH	oklch(61.53% 0.172 265.8)
XYZ	xyz(25.8911, 22.5020, 81.5600)
Luminance	0.2250 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537DEB #EBC153

analogous

#53C9EB #537DEB #7553EB

triadic

#537DEB #EB537D #7DEB53

tetradic

#537DEB #EB53C9 #EBC153 #53EB75

square

#537DEB #EB53C9 #EBC153 #53EB75

split-complementary

#537DEB #EB7553 #C9EB53

monochromatic

#143FAF #1C54E5 #537DEB #8AA6F1 #C1D0F8

Accessibility & contrast

On white

3.82

#537DEB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.50

#537DEB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537DEB

5.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537DEB	#FFFFFF	#000000	##000000
##537DEB	1.00	3.82	5.50	5.50
#FFFFFF	3.82	1.00	21.00	21.00
#000000	5.50	21.00	1.00	1.00
##000000	5.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#458AEF

Deuteranopia (green-blind)

#257CE9

Tritanopia (blue-blind)

#0096A9

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #537deb;
/* rgb */ color: rgb(83, 125, 235);
/* oklch */ color: oklch(61.5% 0.172 265.8);

Tailwind

colors: {
  custom: {
    50: '#92a2f2',
    500: '#537deb',
    950: '#000000',
  },
}

SCSS

$custom: #537deb;
$custom-light: #92a2f2;
$custom-dark: #000000;

JSON

{
  "hex": "#537deb",
  "rgb": {
    "r": 83,
    "g": 125,
    "b": 235
  },
  "hsl": {
    "h": 223.421,
    "s": 79.167,
    "l": 62.353
  },
  "oklch": {
    "l": 0.61527,
    "c": 0.17216,
    "h": 265.8
  },
  "luminance": 0.22504
}

Semantic roles & 50–950 ramp

primary

#537DEB

secondary

#E9D9B1

accent

#A20ADB

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0F17

muted

#7E7E85

Preview Lab

Preview with #537DEB

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

Preview Lab → · Contrast checker → · Palette generator →