#518CDB#518CDB

#518CDB is a light, vivid cyan. Relative luminance 0.256; OKLCH L 63.6% C 0.135 H 256.3°. Best body text is #000000 at 6.12:1 contrast (WCAG AA passes).

Color values

HEX	#518CDB
RGB	rgb(81, 140, 219)
HSL	hsl(214, 66%, 59%)
HSV	hsv(214, 63%, 86%)
CMYK	cmyk(63%, 36.1%, 0%, 14.1%)
CIE-LAB	lab(57.67, 5.15, -46.09)
CIE-LCH	lch(57.67, 46.37, 276.38°)
OKLab	oklab(63.62% -0.0319 -0.1307)
OKLCH	oklch(63.62% 0.135 256.3)
XYZ	xyz(25.5530, 25.6175, 70.6021)
Luminance	0.2562 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#518CDB #DBA051

analogous

#51D1DB #518CDB #5B51DB

triadic

#518CDB #DB518C #8CDB51

tetradic

#518CDB #DB51D1 #DBA051 #51DB5B

square

#518CDB #DB51D1 #DBA051 #51DB5B

split-complementary

#518CDB #DB5B51 #D1DB51

monochromatic

#1E5093 #296CC6 #518CDB #84AEE5 #B6CFF0

Accessibility & contrast

On white

3.43

#518CDB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.12

#518CDB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #518CDB

6.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##518CDB	#FFFFFF	#000000	##000000
##518CDB	1.00	3.43	6.12	6.12
#FFFFFF	3.43	1.00	21.00	21.00
#000000	6.12	21.00	1.00	1.00
##000000	6.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A92DE

Deuteranopia (green-blind)

#5785D9

Tritanopia (blue-blind)

#009EA9

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #518cdb;
/* rgb */ color: rgb(81, 140, 219);
/* oklch */ color: oklch(63.6% 0.135 256.3);

Tailwind

colors: {
  custom: {
    50: '#8eade6',
    500: '#518cdb',
    950: '#000000',
  },
}

SCSS

$custom: #518cdb;
$custom-light: #8eade6;
$custom-dark: #000000;

JSON

{
  "hex": "#518cdb",
  "rgb": {
    "r": 81,
    "g": 140,
    "b": 219
  },
  "hsl": {
    "h": 214.348,
    "s": 65.714,
    "l": 58.824
  },
  "oklch": {
    "l": 0.63622,
    "c": 0.13459,
    "h": 256.3
  },
  "luminance": 0.2562
}

Semantic roles & 50–950 ramp

primary

#518CDB

secondary

#DFC8A9

accent

#A03FE9

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0D1016

muted

#7E7F84

Preview Lab

Preview with #518CDB

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

Preview Lab → · Contrast checker → · Palette generator →