#538BE3#538BE3

#538BE3 is a light, vivid blue. Relative luminance 0.259; OKLCH L 64.0% C 0.145 H 259.1°. Best body text is #000000 at 6.17:1 contrast (WCAG AA passes).

Color values

HEX	#538BE3
RGB	rgb(83, 139, 227)
HSL	hsl(217, 72%, 61%)
HSV	hsv(217, 63%, 89%)
CMYK	cmyk(63.4%, 38.8%, 0%, 11%)
CIE-LAB	lab(57.89, 8.80, -50.20)
CIE-LCH	lch(57.89, 50.96, 279.94°)
OKLab	oklab(63.95% -0.0275 -0.1428)
OKLCH	oklch(63.95% 0.145 259.1)
XYZ	xyz(26.6601, 25.8478, 76.2423)
Luminance	0.2585 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#538BE3 #E3AB53

analogous

#53D3E3 #538BE3 #6353E3

triadic

#538BE3 #E3538B #8BE353

tetradic

#538BE3 #E353D3 #E3AB53 #53E363

square

#538BE3 #E353D3 #E3AB53 #53E363

split-complementary

#538BE3 #E36353 #D3E353

monochromatic

#1A4FA1 #2368D6 #538BE3 #88AEEC #BCD2F4

Accessibility & contrast

On white

3.40

#538BE3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.17

#538BE3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #538BE3

6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##538BE3	#FFFFFF	#000000	##000000
##538BE3	1.00	3.40	6.17	6.17
#FFFFFF	3.40	1.00	21.00	21.00
#000000	6.17	21.00	1.00	1.00
##000000	6.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6492E7

Deuteranopia (green-blind)

#4F85E1

Tritanopia (blue-blind)

#009FAC

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #538be3;
/* rgb */ color: rgb(83, 139, 227);
/* oklch */ color: oklch(64.0% 0.145 259.1);

Tailwind

colors: {
  custom: {
    50: '#90acec',
    500: '#538be3',
    950: '#000000',
  },
}

SCSS

$custom: #538be3;
$custom-light: #90acec;
$custom-dark: #000000;

JSON

{
  "hex": "#538be3",
  "rgb": {
    "r": 83,
    "g": 139,
    "b": 227
  },
  "hsl": {
    "h": 216.667,
    "s": 72,
    "l": 60.784
  },
  "oklch": {
    "l": 0.63952,
    "c": 0.14539,
    "h": 259.1
  },
  "luminance": 0.2585
}

Semantic roles & 50–950 ramp

primary

#538BE3

secondary

#E4CFAE

accent

#8811D4

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #538BE3

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

Preview Lab → · Contrast checker → · Palette generator →