#537DF0#537DF0

#537DF0 is a mid, vivid blue. Relative luminance 0.228; OKLCH L 61.9% C 0.179 H 266.2°. Best body text is #000000 at 5.56:1 contrast (WCAG AA passes).

Color values

HEX	#537DF0
RGB	rgb(83, 125, 240)
HSL	hsl(224, 84%, 63%)
HSV	hsv(224, 65%, 94%)
CMYK	cmyk(65.4%, 47.9%, 0%, 5.9%)
CIE-LAB	lab(54.86, 21.72, -62.28)
CIE-LCH	lch(54.86, 65.96, 289.22°)
OKLab	oklab(61.86% -0.0119 -0.1784)
OKLCH	oklch(61.86% 0.179 266.2)
XYZ	xyz(26.6236, 22.7950, 85.4180)
Luminance	0.2280 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537DF0 #F0C653

analogous

#53CBF0 #537DF0 #7753F0

triadic

#537DF0 #F0537D #7DF053

tetradic

#537DF0 #F053CB #F0C653 #53F077

square

#537DF0 #F053CB #F0C653 #53F077

split-complementary

#537DF0 #F07753 #CBF053

monochromatic

#103DB9 #1B52EB #537DF0 #8BA8F5 #C4D2FA

Accessibility & contrast

On white

3.78

#537DF0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.56

#537DF0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537DF0

5.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537DF0	#FFFFFF	#000000	##000000
##537DF0	1.00	3.78	5.56	5.56
#FFFFFF	3.78	1.00	21.00	21.00
#000000	5.56	21.00	1.00	1.00
##000000	5.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#408BF4

Deuteranopia (green-blind)

#197DEE

Tritanopia (blue-blind)

#0098AB

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #537df0;
/* rgb */ color: rgb(83, 125, 240);
/* oklch */ color: oklch(61.9% 0.179 266.2);

Tailwind

colors: {
  custom: {
    50: '#93a2f6',
    500: '#537df0',
    950: '#000000',
  },
}

SCSS

$custom: #537df0;
$custom-light: #93a2f6;
$custom-dark: #000000;

JSON

{
  "hex": "#537df0",
  "rgb": {
    "r": 83,
    "g": 125,
    "b": 240
  },
  "hsl": {
    "h": 223.949,
    "s": 83.957,
    "l": 63.333
  },
  "oklch": {
    "l": 0.61858,
    "c": 0.17884,
    "h": 266.2
  },
  "luminance": 0.22798
}

Semantic roles & 50–950 ramp

primary

#537DF0

secondary

#EBDCB3

accent

#A605E0

background

#F9F9FF

surface

#F2F2FE

border

#CCCCD6

text

#0E0F17

muted

#7E7E85

Preview Lab

Preview with #537DF0

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

Preview Lab → · Contrast checker → · Palette generator →