#538EF1#538EF1

#538EF1 is a light, vivid blue. Relative luminance 0.275; OKLCH L 65.4% C 0.161 H 260.1°. Best body text is #000000 at 6.51:1 contrast (WCAG AA passes).

Color values

HEX	#538EF1
RGB	rgb(83, 142, 241)
HSL	hsl(218, 85%, 64%)
HSV	hsv(218, 66%, 95%)
CMYK	cmyk(65.6%, 41.1%, 0%, 5.5%)
CIE-LAB	lab(59.46, 11.76, -55.46)
CIE-LCH	lch(59.46, 56.70, 281.97°)
OKLab	oklab(65.41% -0.0275 -0.1582)
OKLCH	oklch(65.41% 0.161 260.1)
XYZ	xyz(29.1118, 27.5330, 86.9822)
Luminance	0.2754 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#538EF1 #F1B653

analogous

#53DDF1 #538EF1 #6753F1

triadic

#538EF1 #F1538E #8EF153

tetradic

#538EF1 #F153DD #F1B653 #53F167

square

#538EF1 #F153DD #F1B653 #53F167

split-complementary

#538EF1 #F16753 #DDF153

monochromatic

#0F4FBA #1A69EC #538EF1 #8CB3F6 #C4D8FA

Accessibility & contrast

On white

3.23

#538EF1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.51

#538EF1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #538EF1

6.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##538EF1	#FFFFFF	#000000	##000000
##538EF1	1.00	3.23	6.51	6.51
#FFFFFF	3.23	1.00	21.00	21.00
#000000	6.51	21.00	1.00	1.00
##000000	6.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6097F5

Deuteranopia (green-blind)

#4888EF

Tritanopia (blue-blind)

#00A5B4

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #538ef1;
/* rgb */ color: rgb(83, 142, 241);
/* oklch */ color: oklch(65.4% 0.161 260.1);

Tailwind

colors: {
  custom: {
    50: '#92aef6',
    500: '#538ef1',
    950: '#000000',
  },
}

SCSS

$custom: #538ef1;
$custom-light: #92aef6;
$custom-dark: #000000;

JSON

{
  "hex": "#538ef1",
  "rgb": {
    "r": 83,
    "g": 142,
    "b": 241
  },
  "hsl": {
    "h": 217.595,
    "s": 84.946,
    "l": 63.529
  },
  "oklch": {
    "l": 0.65414,
    "c": 0.16054,
    "h": 260.1
  },
  "luminance": 0.27536
}

Semantic roles & 50–950 ramp

primary

#538EF1

secondary

#ECD7B4

accent

#8F04E1

background

#F9FAFF

surface

#F2F4FE

border

#CCCED6

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #538EF1

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

Preview Lab → · Contrast checker → · Palette generator →