#538DE3#538DE3

#538DE3 is a light, vivid blue. Relative luminance 0.264; OKLCH L 64.4% C 0.143 H 258.1°. Best body text is #000000 at 6.29:1 contrast (WCAG AA passes).

Color values

HEX	#538DE3
RGB	rgb(83, 141, 227)
HSL	hsl(216, 72%, 61%)
HSV	hsv(216, 63%, 89%)
CMYK	cmyk(63.4%, 37.9%, 0%, 11%)
CIE-LAB	lab(58.45, 7.61, -49.32)
CIE-LCH	lch(58.45, 49.90, 278.77°)
OKLab	oklab(64.38% -0.0295 -0.1402)
OKLCH	oklch(64.38% 0.143 258.1)
XYZ	xyz(26.9523, 26.4322, 76.3397)
Luminance	0.2643 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#538DE3 #E3A953

analogous

#53D5E3 #538DE3 #6153E3

triadic

#538DE3 #E3538D #8DE353

tetradic

#538DE3 #E353D5 #E3A953 #53E361

square

#538DE3 #E353D5 #E3A953 #53E361

split-complementary

#538DE3 #E36153 #D5E353

monochromatic

#1A51A1 #236BD6 #538DE3 #88B0EC #BCD3F4

Accessibility & contrast

On white

3.34

#538DE3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.29

#538DE3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #538DE3

6.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##538DE3	#FFFFFF	#000000	##000000
##538DE3	1.00	3.34	6.29	6.29
#FFFFFF	3.34	1.00	21.00	21.00
#000000	6.29	21.00	1.00	1.00
##000000	6.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6794E6

Deuteranopia (green-blind)

#5386E1

Tritanopia (blue-blind)

#00A1AD

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #538de3;
/* rgb */ color: rgb(83, 141, 227);
/* oklch */ color: oklch(64.4% 0.143 258.1);

Tailwind

colors: {
  custom: {
    50: '#90adec',
    500: '#538de3',
    950: '#000000',
  },
}

SCSS

$custom: #538de3;
$custom-light: #90adec;
$custom-dark: #000000;

JSON

{
  "hex": "#538de3",
  "rgb": {
    "r": 83,
    "g": 141,
    "b": 227
  },
  "hsl": {
    "h": 215.833,
    "s": 72,
    "l": 60.784
  },
  "oklch": {
    "l": 0.64381,
    "c": 0.14324,
    "h": 258.1
  },
  "luminance": 0.26435
}

Semantic roles & 50–950 ramp

primary

#538DE3

secondary

#E4CEAE

accent

#8611D4

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #538DE3

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

Preview Lab → · Contrast checker → · Palette generator →