#518DDA#518DDA

#518DDA is a light, vivid cyan. Relative luminance 0.259; OKLCH L 63.8% C 0.132 H 255.5°. Best body text is #000000 at 6.17:1 contrast (WCAG AA passes).

Color values

HEX	#518DDA
RGB	rgb(81, 141, 218)
HSL	hsl(214, 65%, 59%)
HSV	hsv(214, 63%, 85%)
CMYK	cmyk(62.8%, 35.3%, 0%, 14.5%)
CIE-LAB	lab(57.90, 4.22, -45.16)
CIE-LCH	lch(57.90, 45.36, 275.34°)
OKLab	oklab(63.79% -0.0332 -0.128)
OKLCH	oklch(63.79% 0.132 255.5)
XYZ	xyz(25.5686, 25.8586, 69.9598)
Luminance	0.2586 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#518DDA #DA9E51

analogous

#51D1DA #518DDA #5951DA

triadic

#518DDA #DA518D #8DDA51

tetradic

#518DDA #DA51D1 #DA9E51 #51DA59

square

#518DDA #DA51D1 #DA9E51 #51DA59

split-complementary

#518DDA #DA5951 #D1DA51

monochromatic

#1F5192 #2A6DC4 #518DDA #83AEE5 #B6CFEF

Accessibility & contrast

On white

3.40

#518DDA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.17

#518DDA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #518DDA

6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##518DDA	#FFFFFF	#000000	##000000
##518DDA	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)

#6C92DD

Deuteranopia (green-blind)

#5985D8

Tritanopia (blue-blind)

#009FA9

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #518dda;
/* rgb */ color: rgb(81, 141, 218);
/* oklch */ color: oklch(63.8% 0.132 255.5);

Tailwind

colors: {
  custom: {
    50: '#8eaee6',
    500: '#518dda',
    950: '#000000',
  },
}

SCSS

$custom: #518dda;
$custom-light: #8eaee6;
$custom-dark: #000000;

JSON

{
  "hex": "#518dda",
  "rgb": {
    "r": 81,
    "g": 141,
    "b": 218
  },
  "hsl": {
    "h": 213.723,
    "s": 64.929,
    "l": 58.627
  },
  "oklch": {
    "l": 0.63786,
    "c": 0.13228,
    "h": 255.5
  },
  "luminance": 0.25861
}

Semantic roles & 50–950 ramp

primary

#518DDA

secondary

#DEC7A8

accent

#9E40E8

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0D1016

muted

#7E7F84

Preview Lab

Preview with #518DDA

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

Preview Lab → · Contrast checker → · Palette generator →