#538FF0#538FF0

#538FF0 is a light, vivid blue. Relative luminance 0.278; OKLCH L 65.6% C 0.158 H 259.6°. Best body text is #000000 at 6.56:1 contrast (WCAG AA passes).

Color values

HEX	#538FF0
RGB	rgb(83, 143, 240)
HSL	hsl(217, 84%, 63%)
HSV	hsv(217, 65%, 94%)
CMYK	cmyk(65.4%, 40.4%, 0%, 5.9%)
CIE-LAB	lab(59.68, 10.82, -54.56)
CIE-LCH	lch(59.68, 55.63, 281.22°)
OKLab	oklab(65.57% -0.0286 -0.1555)
OKLCH	oklch(65.57% 0.158 259.6)
XYZ	xyz(29.1123, 27.7723, 86.2475)
Luminance	0.2777 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#538FF0 #F0B453

analogous

#53DDF0 #538FF0 #6553F0

triadic

#538FF0 #F0538F #8FF053

tetradic

#538FF0 #F053DD #F0B453 #53F065

square

#538FF0 #F053DD #F0B453 #53F065

split-complementary

#538FF0 #F06553 #DDF053

monochromatic

#1050B9 #1B6AEB #538FF0 #8BB4F5 #C4D8FA

Accessibility & contrast

On white

3.20

#538FF0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.56

#538FF0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #538FF0

6.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##538FF0	#FFFFFF	#000000	##000000
##538FF0	1.00	3.20	6.56	6.56
#FFFFFF	3.20	1.00	21.00	21.00
#000000	6.56	21.00	1.00	1.00
##000000	6.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6398F4

Deuteranopia (green-blind)

#4B89EE

Tritanopia (blue-blind)

#00A5B4

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #538ff0;
/* rgb */ color: rgb(83, 143, 240);
/* oklch */ color: oklch(65.6% 0.158 259.6);

Tailwind

colors: {
  custom: {
    50: '#92aff5',
    500: '#538ff0',
    950: '#000000',
  },
}

SCSS

$custom: #538ff0;
$custom-light: #92aff5;
$custom-dark: #000000;

JSON

{
  "hex": "#538ff0",
  "rgb": {
    "r": 83,
    "g": 143,
    "b": 240
  },
  "hsl": {
    "h": 217.07,
    "s": 83.957,
    "l": 63.333
  },
  "oklch": {
    "l": 0.65565,
    "c": 0.15813,
    "h": 259.6
  },
  "luminance": 0.27775
}

Semantic roles & 50–950 ramp

primary

#538FF0

secondary

#EBD6B3

accent

#8D05E0

background

#F9FAFF

surface

#F2F4FE

border

#CCCED6

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #538FF0

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

Preview Lab → · Contrast checker → · Palette generator →