#538BE4#538BE4

#538BE4 is a light, vivid blue. Relative luminance 0.259; OKLCH L 64.0% C 0.147 H 259.3°. Best body text is #000000 at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#538BE4
RGB	rgb(83, 139, 228)
HSL	hsl(217, 73%, 61%)
HSV	hsv(217, 64%, 89%)
CMYK	cmyk(63.6%, 39%, 0%, 10.6%)
CIE-LAB	lab(57.95, 9.14, -50.67)
CIE-LCH	lch(57.95, 51.49, 280.22°)
OKLab	oklab(64.01% -0.0273 -0.1442)
OKLCH	oklch(64.01% 0.147 259.3)
XYZ	xyz(26.7985, 25.9031, 76.9713)
Luminance	0.2591 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#538BE4 #E4AC53

analogous

#53D3E4 #538BE4 #6353E4

triadic

#538BE4 #E4538B #8BE453

tetradic

#538BE4 #E453D3 #E4AC53 #53E463

square

#538BE4 #E453D3 #E4AC53 #53E463

split-complementary

#538BE4 #E46353 #D3E453

monochromatic

#1A4FA3 #2268D8 #538BE4 #88AFEC #BDD2F5

Accessibility & contrast

On white

3.40

#538BE4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.18

#538BE4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #538BE4

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##538BE4	#FFFFFF	#000000	##000000
##538BE4	1.00	3.40	6.18	6.18
#FFFFFF	3.40	1.00	21.00	21.00
#000000	6.18	21.00	1.00	1.00
##000000	6.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6393E8

Deuteranopia (green-blind)

#4E85E2

Tritanopia (blue-blind)

#009FAC

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #538be4;
/* rgb */ color: rgb(83, 139, 228);
/* oklch */ color: oklch(64.0% 0.147 259.3);

Tailwind

colors: {
  custom: {
    50: '#90aced',
    500: '#538be4',
    950: '#000000',
  },
}

SCSS

$custom: #538be4;
$custom-light: #90aced;
$custom-dark: #000000;

JSON

{
  "hex": "#538be4",
  "rgb": {
    "r": 83,
    "g": 139,
    "b": 228
  },
  "hsl": {
    "h": 216.828,
    "s": 72.864,
    "l": 60.98
  },
  "oklch": {
    "l": 0.6401,
    "c": 0.14671,
    "h": 259.3
  },
  "luminance": 0.25906
}

Semantic roles & 50–950 ramp

primary

#538BE4

secondary

#E5D0AE

accent

#8911D5

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #538BE4

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

Preview Lab → · Contrast checker → · Palette generator →