#537BE8#537BE8

#537BE8 is a mid, vivid blue. Relative luminance 0.218; OKLCH L 60.9% C 0.171 H 266.3°. Best body text is #000000 at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#537BE8
RGB	rgb(83, 123, 232)
HSL	hsl(224, 76%, 62%)
HSV	hsv(224, 64%, 91%)
CMYK	cmyk(64.2%, 47%, 0%, 9%)
CIE-LAB	lab(53.84, 20.20, -59.45)
CIE-LCH	lch(53.84, 62.79, 288.77°)
OKLab	oklab(60.93% -0.0111 -0.1702)
OKLCH	oklch(60.93% 0.171 266.3)
XYZ	xyz(25.2107, 21.8288, 79.2131)
Luminance	0.2183 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537BE8 #E8C053

analogous

#53C5E8 #537BE8 #7653E8

triadic

#537BE8 #E8537B #7BE853

tetradic

#537BE8 #E853C5 #E8C053 #53E876

square

#537BE8 #E853C5 #E8C053 #53E876

split-complementary

#537BE8 #E87653 #C5E853

monochromatic

#173EAA #1E52E0 #537BE8 #89A4EF #BFCEF6

Accessibility & contrast

On white

3.91

#537BE8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.37

#537BE8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537BE8

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537BE8	#FFFFFF	#000000	##000000
##537BE8	1.00	3.91	5.37	5.37
#FFFFFF	3.91	1.00	21.00	21.00
#000000	5.37	21.00	1.00	1.00
##000000	5.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4388EC

Deuteranopia (green-blind)

#257AE6

Tritanopia (blue-blind)

#0094A6

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #537be8;
/* rgb */ color: rgb(83, 123, 232);
/* oklch */ color: oklch(60.9% 0.171 266.3);

Tailwind

colors: {
  custom: {
    50: '#91a0f0',
    500: '#537be8',
    950: '#000000',
  },
}

SCSS

$custom: #537be8;
$custom-light: #91a0f0;
$custom-dark: #000000;

JSON

{
  "hex": "#537be8",
  "rgb": {
    "r": 83,
    "g": 123,
    "b": 232
  },
  "hsl": {
    "h": 223.893,
    "s": 76.41,
    "l": 61.765
  },
  "oklch": {
    "l": 0.60926,
    "c": 0.17052,
    "h": 266.3
  },
  "luminance": 0.21831
}

Semantic roles & 50–950 ramp

primary

#537BE8

secondary

#E7D8B0

accent

#A20DD9

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #537BE8

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

Preview Lab → · Contrast checker → · Palette generator →