#538BEF#538BEF

#538BEF is a light, vivid blue. Relative luminance 0.265; OKLCH L 64.7% C 0.161 H 261.1°. Best body text is #000000 at 6.31:1 contrast (WCAG AA passes).

Color values

HEX	#538BEF
RGB	rgb(83, 139, 239)
HSL	hsl(218, 83%, 63%)
HSV	hsv(218, 65%, 94%)
CMYK	cmyk(65.3%, 41.8%, 0%, 6.3%)
CIE-LAB	lab(58.54, 12.88, -55.83)
CIE-LCH	lch(58.54, 57.30, 282.99°)
OKLab	oklab(64.66% -0.025 -0.1593)
OKLCH	oklch(64.66% 0.161 261.1)
XYZ	xyz(28.3744, 26.5335, 85.2708)
Luminance	0.2654 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#538BEF #EFB753

analogous

#53D9EF #538BEF #6953EF

triadic

#538BEF #EF538B #8BEF53

tetradic

#538BEF #EF53D9 #EFB753 #53EF69

square

#538BEF #EF53D9 #EFB753 #53EF69

split-complementary

#538BEF #EF6953 #D9EF53

monochromatic

#114CB7 #1B65EA #538BEF #8BB1F4 #C3D7F9

Accessibility & contrast

On white

3.33

#538BEF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.31

#538BEF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #538BEF

6.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##538BEF	#FFFFFF	#000000	##000000
##538BEF	1.00	3.33	6.31	6.31
#FFFFFF	3.33	1.00	21.00	21.00
#000000	6.31	21.00	1.00	1.00
##000000	6.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C95F3

Deuteranopia (green-blind)

#4486ED

Tritanopia (blue-blind)

#00A2B1

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #538bef;
/* rgb */ color: rgb(83, 139, 239);
/* oklch */ color: oklch(64.7% 0.161 261.1);

Tailwind

colors: {
  custom: {
    50: '#92acf5',
    500: '#538bef',
    950: '#000000',
  },
}

SCSS

$custom: #538bef;
$custom-light: #92acf5;
$custom-dark: #000000;

JSON

{
  "hex": "#538bef",
  "rgb": {
    "r": 83,
    "g": 139,
    "b": 239
  },
  "hsl": {
    "h": 218.462,
    "s": 82.979,
    "l": 63.137
  },
  "oklch": {
    "l": 0.64663,
    "c": 0.16124,
    "h": 261.1
  },
  "luminance": 0.26536
}

Semantic roles & 50–950 ramp

primary

#538BEF

secondary

#EBD7B3

accent

#9106DF

background

#F9FAFF

surface

#F2F4FE

border

#CCCED6

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #538BEF

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

Preview Lab → · Contrast checker → · Palette generator →