#537BE7#537BE7

#537BE7 is a mid, vivid blue. Relative luminance 0.218; OKLCH L 60.9% C 0.169 H 266.2°. Best body text is #000000 at 5.35:1 contrast (WCAG AA passes).

Color values

HEX	#537BE7
RGB	rgb(83, 123, 231)
HSL	hsl(224, 76%, 62%)
HSV	hsv(224, 64%, 91%)
CMYK	cmyk(64.1%, 46.8%, 0%, 9.4%)
CIE-LAB	lab(53.78, 19.86, -58.99)
CIE-LCH	lch(53.78, 62.25, 288.61°)
OKLab	oklab(60.86% -0.0112 -0.1688)
OKLCH	oklch(60.86% 0.169 266.2)
XYZ	xyz(25.0691, 21.7721, 78.4671)
Luminance	0.2177 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537BE7 #E7BF53

analogous

#53C5E7 #537BE7 #7553E7

triadic

#537BE7 #E7537B #7BE753

tetradic

#537BE7 #E753C5 #E7BF53 #53E775

square

#537BE7 #E753C5 #E7BF53 #53E775

split-complementary

#537BE7 #E77553 #C5E753

monochromatic

#173FA8 #1F53DE #537BE7 #89A4EE #BECDF6

Accessibility & contrast

On white

3.92

#537BE7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.35

#537BE7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537BE7

5.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537BE7	#FFFFFF	#000000	##000000
##537BE7	1.00	3.92	5.35	5.35
#FFFFFF	3.92	1.00	21.00	21.00
#000000	5.35	21.00	1.00	1.00
##000000	5.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4488EB

Deuteranopia (green-blind)

#277AE5

Tritanopia (blue-blind)

#0094A6

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #537be7;
/* rgb */ color: rgb(83, 123, 231);
/* oklch */ color: oklch(60.9% 0.169 266.2);

Tailwind

colors: {
  custom: {
    50: '#91a0ef',
    500: '#537be7',
    950: '#000000',
  },
}

SCSS

$custom: #537be7;
$custom-light: #91a0ef;
$custom-dark: #000000;

JSON

{
  "hex": "#537be7",
  "rgb": {
    "r": 83,
    "g": 123,
    "b": 231
  },
  "hsl": {
    "h": 223.784,
    "s": 75.51,
    "l": 61.569
  },
  "oklch": {
    "l": 0.6086,
    "c": 0.16917,
    "h": 266.2
  },
  "luminance": 0.21774
}

Semantic roles & 50–950 ramp

primary

#537BE7

secondary

#E6D8AF

accent

#A10ED8

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #537BE7

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

Preview Lab → · Contrast checker → · Palette generator →