#537BDF#537BDF

#537BDF is a mid, vivid blue. Relative luminance 0.213; OKLCH L 60.3% C 0.158 H 265.5°. Best body text is #000000 at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#537BDF
RGB	rgb(83, 123, 223)
HSL	hsl(223, 69%, 60%)
HSV	hsv(223, 63%, 87%)
CMYK	cmyk(62.8%, 44.8%, 0%, 12.5%)
CIE-LAB	lab(53.31, 17.13, -55.27)
CIE-LCH	lch(53.31, 57.86, 287.22°)
OKLab	oklab(60.34% -0.0124 -0.1578)
OKLCH	oklch(60.34% 0.158 265.5)
XYZ	xyz(23.9649, 21.3305, 72.6520)
Luminance	0.2133 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537BDF #DFB753

analogous

#53C1DF #537BDF #7153DF

triadic

#537BDF #DF537B #7BDF53

tetradic

#537BDF #DF53C1 #DFB753 #53DF71

square

#537BDF #DF53C1 #DFB753 #53DF71

split-complementary

#537BDF #DF7153 #C1DF53

monochromatic

#1D419B #2656CE #537BDF #87A3E9 #BACAF2

Accessibility & contrast

On white

3.99

#537BDF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.27

#537BDF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537BDF

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537BDF	#FFFFFF	#000000	##000000
##537BDF	1.00	3.99	5.27	5.27
#FFFFFF	3.99	1.00	21.00	21.00
#000000	5.27	21.00	1.00	1.00
##000000	5.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B86E3

Deuteranopia (green-blind)

#3479DD

Tritanopia (blue-blind)

#0092A2

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #537bdf;
/* rgb */ color: rgb(83, 123, 223);
/* oklch */ color: oklch(60.3% 0.158 265.5);

Tailwind

colors: {
  custom: {
    50: '#90a0e9',
    500: '#537bdf',
    950: '#000000',
  },
}

SCSS

$custom: #537bdf;
$custom-light: #90a0e9;
$custom-dark: #000000;

JSON

{
  "hex": "#537bdf",
  "rgb": {
    "r": 83,
    "g": 123,
    "b": 223
  },
  "hsl": {
    "h": 222.857,
    "s": 68.627,
    "l": 60
  },
  "oklch": {
    "l": 0.60343,
    "c": 0.15833,
    "h": 265.5
  },
  "luminance": 0.21333
}

Semantic roles & 50–950 ramp

primary

#537BDF

secondary

#E2D2AC

accent

#B93CEB

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #537BDF

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

Preview Lab → · Contrast checker → · Palette generator →