#537BEE#537BEE

#537BEE is a mid, vivid blue. Relative luminance 0.222; OKLCH L 61.3% C 0.179 H 266.7°. Best body text is #000000 at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#537BEE
RGB	rgb(83, 123, 238)
HSL	hsl(225, 82%, 63%)
HSV	hsv(225, 65%, 93%)
CMYK	cmyk(65.1%, 48.3%, 0%, 6.7%)
CIE-LAB	lab(54.21, 22.26, -62.21)
CIE-LCH	lch(54.21, 66.07, 289.68°)
OKLab	oklab(61.33% -0.0103 -0.1783)
OKLCH	oklch(61.33% 0.179 266.7)
XYZ	xyz(26.0775, 22.1755, 83.7784)
Luminance	0.2218 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537BEE #EEC653

analogous

#53C9EE #537BEE #7853EE

triadic

#537BEE #EE537B #7BEE53

tetradic

#537BEE #EE53C9 #EEC653 #53EE78

square

#537BEE #EE53C9 #EEC653 #53EE78

split-complementary

#537BEE #EE7853 #C9EE53

monochromatic

#123CB5 #1B50E8 #537BEE #8BA6F4 #C2D0F9

Accessibility & contrast

On white

3.86

#537BEE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.44

#537BEE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537BEE

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537BEE	#FFFFFF	#000000	##000000
##537BEE	1.00	3.86	5.44	5.44
#FFFFFF	3.86	1.00	21.00	21.00
#000000	5.44	21.00	1.00	1.00
##000000	5.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D89F2

Deuteranopia (green-blind)

#157BEC

Tritanopia (blue-blind)

#0096A9

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #537bee;
/* rgb */ color: rgb(83, 123, 238);
/* oklch */ color: oklch(61.3% 0.179 266.7);

Tailwind

colors: {
  custom: {
    50: '#92a0f4',
    500: '#537bee',
    950: '#000000',
  },
}

SCSS

$custom: #537bee;
$custom-light: #92a0f4;
$custom-dark: #000000;

JSON

{
  "hex": "#537bee",
  "rgb": {
    "r": 83,
    "g": 123,
    "b": 238
  },
  "hsl": {
    "h": 224.516,
    "s": 82.011,
    "l": 62.941
  },
  "oklch": {
    "l": 0.61325,
    "c": 0.17857,
    "h": 266.7
  },
  "luminance": 0.22178
}

Semantic roles & 50–950 ramp

primary

#537BEE

secondary

#EADCB2

accent

#A707DE

background

#F9F9FF

surface

#F2F2FE

border

#CCCCD6

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #537BEE

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

Preview Lab → · Contrast checker → · Palette generator →