#537EE5#537EE5

#537EE5 is a mid, vivid blue. Relative luminance 0.224; OKLCH L 61.3% C 0.163 H 264.9°. Best body text is #000000 at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#537EE5
RGB	rgb(83, 126, 229)
HSL	hsl(222, 74%, 61%)
HSV	hsv(222, 64%, 90%)
CMYK	cmyk(63.8%, 45%, 0%, 10.2%)
CIE-LAB	lab(54.47, 17.34, -56.78)
CIE-LCH	lch(54.47, 59.37, 286.98°)
OKLab	oklab(61.34% -0.0143 -0.1623)
OKLCH	oklch(61.34% 0.163 264.9)
XYZ	xyz(25.1661, 22.4155, 77.1139)
Luminance	0.2242 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537EE5 #E5BA53

analogous

#53C7E5 #537EE5 #7153E5

triadic

#537EE5 #E5537E #7EE553

tetradic

#537EE5 #E553C7 #E5BA53 #53E571

square

#537EE5 #E553C7 #E5BA53 #53E571

split-complementary

#537EE5 #E57153 #C7E553

monochromatic

#1942A5 #2157DA #537EE5 #88A6ED #BDCEF5

Accessibility & contrast

On white

3.83

#537EE5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.48

#537EE5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537EE5

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537EE5	#FFFFFF	#000000	##000000
##537EE5	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)

#4C89E9

Deuteranopia (green-blind)

#337CE3

Tritanopia (blue-blind)

#0096A6

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #537ee5;
/* rgb */ color: rgb(83, 126, 229);
/* oklch */ color: oklch(61.3% 0.163 264.9);

Tailwind

colors: {
  custom: {
    50: '#91a2ee',
    500: '#537ee5',
    950: '#000000',
  },
}

SCSS

$custom: #537ee5;
$custom-light: #91a2ee;
$custom-dark: #000000;

JSON

{
  "hex": "#537ee5",
  "rgb": {
    "r": 83,
    "g": 126,
    "b": 229
  },
  "hsl": {
    "h": 222.329,
    "s": 73.737,
    "l": 61.176
  },
  "oklch": {
    "l": 0.61343,
    "c": 0.16289,
    "h": 264.9
  },
  "luminance": 0.22418
}

Semantic roles & 50–950 ramp

primary

#537EE5

secondary

#E5D5AE

accent

#9B10D6

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0F16

muted

#7E7E84

Preview Lab

Preview with #537EE5

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

Preview Lab → · Contrast checker → · Palette generator →