#518CD8#518CD8

#518CD8 is a light, vivid cyan. Relative luminance 0.255; OKLCH L 63.5% C 0.131 H 255.5°. Best body text is #000000 at 6.09:1 contrast (WCAG AA passes).

Color values

HEX	#518CD8
RGB	rgb(81, 140, 216)
HSL	hsl(214, 63%, 58%)
HSV	hsv(214, 63%, 85%)
CMYK	cmyk(62.5%, 35.2%, 0%, 15.3%)
CIE-LAB	lab(57.52, 4.14, -44.64)
CIE-LCH	lch(57.52, 44.84, 275.30°)
OKLab	oklab(63.46% -0.0327 -0.1265)
OKLCH	oklch(63.46% 0.131 255.5)
XYZ	xyz(25.1616, 25.4610, 68.5409)
Luminance	0.2546 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#518CD8 #D89D51

analogous

#51CFD8 #518CD8 #5951D8

triadic

#518CD8 #D8518C #8CD851

tetradic

#518CD8 #D851CF #D89D51 #51D859

square

#518CD8 #D851CF #D89D51 #51D859

split-complementary

#518CD8 #D85951 #CFD851

monochromatic

#20508F #2B6CC1 #518CD8 #83ADE3 #B5CEEE

Accessibility & contrast

On white

3.45

#518CD8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.09

#518CD8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #518CD8

6.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##518CD8	#FFFFFF	#000000	##000000
##518CD8	1.00	3.45	6.09	6.09
#FFFFFF	3.45	1.00	21.00	21.00
#000000	6.09	21.00	1.00	1.00
##000000	6.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B91DB

Deuteranopia (green-blind)

#5984D6

Tritanopia (blue-blind)

#009DA8

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #518cd8;
/* rgb */ color: rgb(81, 140, 216);
/* oklch */ color: oklch(63.5% 0.131 255.5);

Tailwind

colors: {
  custom: {
    50: '#8eade4',
    500: '#518cd8',
    950: '#000000',
  },
}

SCSS

$custom: #518cd8;
$custom-light: #8eade4;
$custom-dark: #000000;

JSON

{
  "hex": "#518cd8",
  "rgb": {
    "r": 81,
    "g": 140,
    "b": 216
  },
  "hsl": {
    "h": 213.778,
    "s": 63.38,
    "l": 58.235
  },
  "oklch": {
    "l": 0.63456,
    "c": 0.13069,
    "h": 255.5
  },
  "luminance": 0.25463
}

Semantic roles & 50–950 ramp

primary

#518CD8

secondary

#DDC6A8

accent

#9E41E6

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0D1015

muted

#7E7F84

Preview Lab

Preview with #518CD8

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

Preview Lab → · Contrast checker → · Palette generator →