#518EEF#518EEF

#518EEF is a light, vivid blue. Relative luminance 0.273; OKLCH L 65.2% C 0.159 H 259.3°. Best body text is #000000 at 6.47:1 contrast (WCAG AA passes).

Color values

HEX	#518EEF
RGB	rgb(81, 142, 239)
HSL	hsl(217, 83%, 63%)
HSV	hsv(217, 66%, 94%)
CMYK	cmyk(66.1%, 40.6%, 0%, 6.3%)
CIE-LAB	lab(59.27, 10.76, -54.67)
CIE-LCH	lch(59.27, 55.72, 281.13°)
OKLab	oklab(65.21% -0.0294 -0.1559)
OKLCH	oklch(65.21% 0.159 259.3)
XYZ	xyz(28.6408, 27.3245, 85.4094)
Luminance	0.2733 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#518EEF #EFB251

analogous

#51DDEF #518EEF #6351EF

triadic

#518EEF #EF518E #8EEF51

tetradic

#518EEF #EF51DD #EFB251 #51EF63

square

#518EEF #EF51DD #EFB251 #51EF63

split-complementary

#518EEF #EF6351 #DDEF51

monochromatic

#1150B5 #196AEA #518EEF #89B2F4 #C1D7F9

Accessibility & contrast

On white

3.25

#518EEF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.47

#518EEF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #518EEF

6.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##518EEF	#FFFFFF	#000000	##000000
##518EEF	1.00	3.25	6.47	6.47
#FFFFFF	3.25	1.00	21.00	21.00
#000000	6.47	21.00	1.00	1.00
##000000	6.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6197F3

Deuteranopia (green-blind)

#4988ED

Tritanopia (blue-blind)

#00A4B3

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #518eef;
/* rgb */ color: rgb(81, 142, 239);
/* oklch */ color: oklch(65.2% 0.159 259.3);

Tailwind

colors: {
  custom: {
    50: '#91aef5',
    500: '#518eef',
    950: '#000000',
  },
}

SCSS

$custom: #518eef;
$custom-light: #91aef5;
$custom-dark: #000000;

JSON

{
  "hex": "#518eef",
  "rgb": {
    "r": 81,
    "g": 142,
    "b": 239
  },
  "hsl": {
    "h": 216.835,
    "s": 83.158,
    "l": 62.745
  },
  "oklch": {
    "l": 0.65208,
    "c": 0.15862,
    "h": 259.3
  },
  "luminance": 0.27327
}

Semantic roles & 50–950 ramp

primary

#518EEF

secondary

#EAD4B1

accent

#8C06E0

background

#F9FAFF

surface

#F2F4FE

border

#CCCED6

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #518EEF

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

Preview Lab → · Contrast checker → · Palette generator →