#5381E4#5381E4

#5381E4 is a mid, vivid blue. Relative luminance 0.231; OKLCH L 61.9% C 0.158 H 263.7°. Best body text is #000000 at 5.63:1 contrast (WCAG AA passes).

Color values

HEX	#5381E4
RGB	rgb(83, 129, 228)
HSL	hsl(221, 73%, 61%)
HSV	hsv(221, 64%, 89%)
CMYK	cmyk(63.6%, 43.4%, 0%, 10.6%)
CIE-LAB	lab(55.21, 15.17, -55.02)
CIE-LCH	lch(55.21, 57.08, 285.41°)
OKLab	oklab(61.9% -0.0174 -0.157)
OKLCH	oklch(61.9% 0.158 263.7)
XYZ	xyz(25.4162, 23.1386, 76.5105)
Luminance	0.2314 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5381E4 #E4B653

analogous

#53C9E4 #5381E4 #6D53E4

triadic

#5381E4 #E45381 #81E453

tetradic

#5381E4 #E453C9 #E4B653 #53E46D

square

#5381E4 #E453C9 #E4B653 #53E46D

split-complementary

#5381E4 #E46D53 #C9E453

monochromatic

#1A45A3 #225CD8 #5381E4 #88A8EC #BDCEF5

Accessibility & contrast

On white

3.73

#5381E4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.63

#5381E4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5381E4

5.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5381E4	#FFFFFF	#000000	##000000
##5381E4	1.00	3.73	5.63	5.63
#FFFFFF	3.73	1.00	21.00	21.00
#000000	5.63	21.00	1.00	1.00
##000000	5.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#528BE8

Deuteranopia (green-blind)

#3B7EE2

Tritanopia (blue-blind)

#0098A7

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #5381e4;
/* rgb */ color: rgb(83, 129, 228);
/* oklch */ color: oklch(61.9% 0.158 263.7);

Tailwind

colors: {
  custom: {
    50: '#91a5ed',
    500: '#5381e4',
    950: '#000000',
  },
}

SCSS

$custom: #5381e4;
$custom-light: #91a5ed;
$custom-dark: #000000;

JSON

{
  "hex": "#5381e4",
  "rgb": {
    "r": 83,
    "g": 129,
    "b": 228
  },
  "hsl": {
    "h": 220.966,
    "s": 72.864,
    "l": 60.98
  },
  "oklch": {
    "l": 0.619,
    "c": 0.15801,
    "h": 263.7
  },
  "luminance": 0.23141
}

Semantic roles & 50–950 ramp

primary

#5381E4

secondary

#E5D3AE

accent

#9711D5

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E0F16

muted

#7E7F84

Preview Lab

Preview with #5381E4

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

Preview Lab → · Contrast checker → · Palette generator →