#518FDB#518FDB

#518FDB is a light, vivid cyan. Relative luminance 0.265; OKLCH L 64.3% C 0.132 H 254.6°. Best body text is #000000 at 6.30:1 contrast (WCAG AA passes).

Color values

HEX	#518FDB
RGB	rgb(81, 143, 219)
HSL	hsl(213, 66%, 59%)
HSV	hsv(213, 63%, 86%)
CMYK	cmyk(63%, 34.7%, 0%, 14.1%)
CIE-LAB	lab(58.51, 3.38, -44.76)
CIE-LCH	lch(58.51, 44.88, 274.32°)
OKLab	oklab(64.28% -0.035 -0.1268)
OKLCH	oklch(64.28% 0.132 254.6)
XYZ	xyz(25.9974, 26.5062, 70.7503)
Luminance	0.2651 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#518FDB #DB9D51

analogous

#51D4DB #518FDB #5851DB

triadic

#518FDB #DB518F #8FDB51

tetradic

#518FDB #DB51D4 #DB9D51 #51DB58

square

#518FDB #DB51D4 #DB9D51 #51DB58

split-complementary

#518FDB #DB5851 #D4DB51

monochromatic

#1E5393 #296FC6 #518FDB #84B0E5 #B6D0F0

Accessibility & contrast

On white

3.33

#518FDB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.30

#518FDB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #518FDB

6.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##518FDB	#FFFFFF	#000000	##000000
##518FDB	1.00	3.33	6.30	6.30
#FFFFFF	3.33	1.00	21.00	21.00
#000000	6.30	21.00	1.00	1.00
##000000	6.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E94DE

Deuteranopia (green-blind)

#5B87D9

Tritanopia (blue-blind)

#00A0AB

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #518fdb;
/* rgb */ color: rgb(81, 143, 219);
/* oklch */ color: oklch(64.3% 0.132 254.6);

Tailwind

colors: {
  custom: {
    50: '#8eafe6',
    500: '#518fdb',
    950: '#000000',
  },
}

SCSS

$custom: #518fdb;
$custom-light: #8eafe6;
$custom-dark: #000000;

JSON

{
  "hex": "#518fdb",
  "rgb": {
    "r": 81,
    "g": 143,
    "b": 219
  },
  "hsl": {
    "h": 213.043,
    "s": 65.714,
    "l": 58.824
  },
  "oklch": {
    "l": 0.6428,
    "c": 0.13157,
    "h": 254.6
  },
  "luminance": 0.26509
}

Semantic roles & 50–950 ramp

primary

#518FDB

secondary

#DFC7A9

accent

#9C3FE9

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0D1016

muted

#7E7F84

Preview Lab

Preview with #518FDB

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

Preview Lab → · Contrast checker → · Palette generator →