#537EDD#537EDD

#537EDD is a mid, vivid blue. Relative luminance 0.220; OKLCH L 60.8% C 0.152 H 264.1°. Best body text is #000000 at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#537EDD
RGB	rgb(83, 126, 221)
HSL	hsl(221, 67%, 60%)
HSV	hsv(221, 62%, 87%)
CMYK	cmyk(62.4%, 43%, 0%, 13.3%)
CIE-LAB	lab(54.00, 14.61, -53.03)
CIE-LCH	lch(54.00, 55.01, 285.41°)
OKLab	oklab(60.84% -0.0157 -0.1512)
OKLCH	oklch(60.84% 0.152 264.1)
XYZ	xyz(24.0747, 21.9790, 71.3662)
Luminance	0.2198 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537EDD #DDB253

analogous

#53C3DD #537EDD #6D53DD

triadic

#537EDD #DD537E #7EDD53

tetradic

#537EDD #DD53C3 #DDB253 #53DD6D

square

#537EDD #DD53C3 #DDB253 #53DD6D

split-complementary

#537EDD #DD6D53 #C3DD53

monochromatic

#1E4498 #285BCB #537EDD #86A4E7 #B9CBF1

Accessibility & contrast

On white

3.89

#537EDD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.40

#537EDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537EDD

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537EDD	#FFFFFF	#000000	##000000
##537EDD	1.00	3.89	5.40	5.40
#FFFFFF	3.89	1.00	21.00	21.00
#000000	5.40	21.00	1.00	1.00
##000000	5.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5288E1

Deuteranopia (green-blind)

#3D7BDB

Tritanopia (blue-blind)

#0094A3

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #537edd;
/* rgb */ color: rgb(83, 126, 221);
/* oklch */ color: oklch(60.8% 0.152 264.1);

Tailwind

colors: {
  custom: {
    50: '#8fa2e8',
    500: '#537edd',
    950: '#000000',
  },
}

SCSS

$custom: #537edd;
$custom-light: #8fa2e8;
$custom-dark: #000000;

JSON

{
  "hex": "#537edd",
  "rgb": {
    "r": 83,
    "g": 126,
    "b": 221
  },
  "hsl": {
    "h": 221.304,
    "s": 66.99,
    "l": 59.608
  },
  "oklch": {
    "l": 0.6084,
    "c": 0.15205,
    "h": 264.1
  },
  "luminance": 0.21981
}

Semantic roles & 50–950 ramp

primary

#537EDD

secondary

#E1D0AB

accent

#B43EEA

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0F16

muted

#7E7E84

Preview Lab

Preview with #537EDD

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

Preview Lab → · Contrast checker → · Palette generator →