#538DE4#538DE4

#538DE4 is a light, vivid blue. Relative luminance 0.265; OKLCH L 64.4% C 0.145 H 258.3°. Best body text is #000000 at 6.30:1 contrast (WCAG AA passes).

Color values

HEX	#538DE4
RGB	rgb(83, 141, 228)
HSL	hsl(216, 73%, 61%)
HSV	hsv(216, 64%, 89%)
CMYK	cmyk(63.6%, 38.2%, 0%, 10.6%)
CIE-LAB	lab(58.50, 7.94, -49.80)
CIE-LCH	lch(58.50, 50.43, 279.06°)
OKLab	oklab(64.44% -0.0293 -0.1416)
OKLCH	oklch(64.44% 0.145 258.3)
XYZ	xyz(27.0907, 26.4876, 77.0687)
Luminance	0.2649 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#538DE4 #E4AA53

analogous

#53D5E4 #538DE4 #6153E4

triadic

#538DE4 #E4538D #8DE453

tetradic

#538DE4 #E453D5 #E4AA53 #53E461

square

#538DE4 #E453D5 #E4AA53 #53E461

split-complementary

#538DE4 #E46153 #D5E453

monochromatic

#1A51A3 #226BD8 #538DE4 #88B0EC #BDD3F5

Accessibility & contrast

On white

3.33

#538DE4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.30

#538DE4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #538DE4

6.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##538DE4	#FFFFFF	#000000	##000000
##538DE4	1.00	3.33	6.30	6.30
#FFFFFF	3.33	1.00	21.00	21.00
#000000	6.30	21.00	1.00	1.00
##000000	6.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6794E7

Deuteranopia (green-blind)

#5286E2

Tritanopia (blue-blind)

#00A1AD

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #538de4;
/* rgb */ color: rgb(83, 141, 228);
/* oklch */ color: oklch(64.4% 0.145 258.3);

Tailwind

colors: {
  custom: {
    50: '#90aded',
    500: '#538de4',
    950: '#000000',
  },
}

SCSS

$custom: #538de4;
$custom-light: #90aded;
$custom-dark: #000000;

JSON

{
  "hex": "#538de4",
  "rgb": {
    "r": 83,
    "g": 141,
    "b": 228
  },
  "hsl": {
    "h": 216,
    "s": 72.864,
    "l": 60.98
  },
  "oklch": {
    "l": 0.64438,
    "c": 0.14455,
    "h": 258.3
  },
  "luminance": 0.2649
}

Semantic roles & 50–950 ramp

primary

#538DE4

secondary

#E5CFAE

accent

#8611D5

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #538DE4

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

Preview Lab → · Contrast checker → · Palette generator →