#538EE4#538EE4

#538EE4 is a light, vivid blue. Relative luminance 0.268; OKLCH L 64.7% C 0.143 H 257.8°. Best body text is #000000 at 6.36:1 contrast (WCAG AA passes).

Color values

HEX	#538EE4
RGB	rgb(83, 142, 228)
HSL	hsl(216, 73%, 61%)
HSV	hsv(216, 64%, 89%)
CMYK	cmyk(63.6%, 37.7%, 0%, 10.6%)
CIE-LAB	lab(58.77, 7.35, -49.36)
CIE-LCH	lch(58.77, 49.90, 278.47°)
OKLab	oklab(64.65% -0.0302 -0.1403)
OKLCH	oklch(64.65% 0.143 257.8)
XYZ	xyz(27.2389, 26.7838, 77.1181)
Luminance	0.2679 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#538EE4 #E4A953

analogous

#53D6E4 #538EE4 #6053E4

triadic

#538EE4 #E4538E #8EE453

tetradic

#538EE4 #E453D6 #E4A953 #53E460

square

#538EE4 #E453D6 #E4A953 #53E460

split-complementary

#538EE4 #E46053 #D6E453

monochromatic

#1A52A3 #226CD8 #538EE4 #88B1EC #BDD4F5

Accessibility & contrast

On white

3.30

#538EE4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.36

#538EE4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #538EE4

6.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##538EE4	#FFFFFF	#000000	##000000
##538EE4	1.00	3.30	6.36	6.36
#FFFFFF	3.30	1.00	21.00	21.00
#000000	6.36	21.00	1.00	1.00
##000000	6.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6895E7

Deuteranopia (green-blind)

#5487E2

Tritanopia (blue-blind)

#00A2AE

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #538ee4;
/* rgb */ color: rgb(83, 142, 228);
/* oklch */ color: oklch(64.7% 0.143 257.8);

Tailwind

colors: {
  custom: {
    50: '#90aeed',
    500: '#538ee4',
    950: '#000000',
  },
}

SCSS

$custom: #538ee4;
$custom-light: #90aeed;
$custom-dark: #000000;

JSON

{
  "hex": "#538ee4",
  "rgb": {
    "r": 83,
    "g": 142,
    "b": 228
  },
  "hsl": {
    "h": 215.586,
    "s": 72.864,
    "l": 60.98
  },
  "oklch": {
    "l": 0.64653,
    "c": 0.14348,
    "h": 257.8
  },
  "luminance": 0.26786
}

Semantic roles & 50–950 ramp

primary

#538EE4

secondary

#E5CEAE

accent

#8511D5

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #538EE4

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

Preview Lab → · Contrast checker → · Palette generator →