#537FFF#537FFF

#537FFF is a light, vivid blue. Relative luminance 0.242; OKLCH L 63.3% C 0.196 H 266.5°. Best body text is #000000 at 5.85:1 contrast (WCAG AA passes).

Color values

HEX	#537FFF
RGB	rgb(83, 127, 255)
HSL	hsl(225, 100%, 66%)
HSV	hsv(225, 67%, 100%)
CMYK	cmyk(67.5%, 50.2%, 0%, 0%)
CIE-LAB	lab(56.32, 25.65, -68.23)
CIE-LCH	lch(56.32, 72.89, 290.60°)
OKLab	oklab(63.27% -0.0119 -0.1959)
OKLCH	oklch(63.27% 0.196 266.5)
XYZ	xyz(29.2004, 24.2349, 97.7273)
Luminance	0.2424 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537FFF #FFD353

analogous

#53D5FF #537FFF #7D53FF

triadic

#537FFF #FF537F #7FFF53

tetradic

#537FFF #FF53D5 #FFD353 #53FF7D

square

#537FFF #FF53D5 #FFD353 #53FF7D

split-complementary

#537FFF #FF7D53 #D5FF53

monochromatic

#0037D8 #1651FF #537FFF #90ADFF #CDDAFF

Accessibility & contrast

On white

3.59

#537FFF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.85

#537FFF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537FFF

5.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537FFF	#FFFFFF	#000000	##000000
##537FFF	1.00	3.59	5.85	5.85
#FFFFFF	3.59	1.00	21.00	21.00
#000000	5.85	21.00	1.00	1.00
##000000	5.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#328FFF

Deuteranopia (green-blind)

#0080FC

Tritanopia (blue-blind)

#009DB3

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #537fff;
/* rgb */ color: rgb(83, 127, 255);
/* oklch */ color: oklch(63.3% 0.196 266.5);

Tailwind

colors: {
  custom: {
    50: '#95a3ff',
    500: '#537fff',
    950: '#000000',
  },
}

SCSS

$custom: #537fff;
$custom-light: #95a3ff;
$custom-dark: #000000;

JSON

{
  "hex": "#537fff",
  "rgb": {
    "r": 83,
    "g": 127,
    "b": 255
  },
  "hsl": {
    "h": 224.651,
    "s": 100,
    "l": 66.275
  },
  "oklch": {
    "l": 0.63271,
    "c": 0.19628,
    "h": 266.5
  },
  "luminance": 0.24238
}

Semantic roles & 50–950 ramp

primary

#537FFF

secondary

#F3E5BB

accent

#AB00E6

background

#FAFAFF

surface

#F3F3FF

border

#CDCDD7

text

#0F0F18

muted

#7F7F86

Preview Lab

Preview with #537FFF

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

Preview Lab → · Contrast checker → · Palette generator →