#518FDD#518FDD

#518FDD is a light, vivid cyan. Relative luminance 0.266; OKLCH L 64.4% C 0.134 H 255.1°. Best body text is #000000 at 6.32:1 contrast (WCAG AA passes).

Color values

HEX	#518FDD
RGB	rgb(81, 143, 221)
HSL	hsl(213, 67%, 59%)
HSV	hsv(213, 63%, 87%)
CMYK	cmyk(63.3%, 35.3%, 0%, 13.3%)
CIE-LAB	lab(58.61, 4.05, -45.72)
CIE-LCH	lch(58.61, 45.89, 275.06°)
OKLab	oklab(64.39% -0.0345 -0.1296)
OKLCH	oklch(64.39% 0.134 255.1)
XYZ	xyz(26.2622, 26.6122, 72.1452)
Luminance	0.2661 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#518FDD #DD9F51

analogous

#51D5DD #518FDD #5951DD

triadic

#518FDD #DD518F #8FDD51

tetradic

#518FDD #DD51D5 #DD9F51 #51DD59

square

#518FDD #DD51D5 #DD9F51 #51DD59

split-complementary

#518FDD #DD5951 #D5DD51

monochromatic

#1D5396 #276FC9 #518FDD #84B0E7 #B7D1F1

Accessibility & contrast

On white

3.32

#518FDD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.32

#518FDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #518FDD

6.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##518FDD	#FFFFFF	#000000	##000000
##518FDD	1.00	3.32	6.32	6.32
#FFFFFF	3.32	1.00	21.00	21.00
#000000	6.32	21.00	1.00	1.00
##000000	6.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D94E0

Deuteranopia (green-blind)

#5A87DB

Tritanopia (blue-blind)

#00A1AC

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #518fdd;
/* rgb */ color: rgb(81, 143, 221);
/* oklch */ color: oklch(64.4% 0.134 255.1);

Tailwind

colors: {
  custom: {
    50: '#8eafe8',
    500: '#518fdd',
    950: '#000000',
  },
}

SCSS

$custom: #518fdd;
$custom-light: #8eafe8;
$custom-dark: #000000;

JSON

{
  "hex": "#518fdd",
  "rgb": {
    "r": 81,
    "g": 143,
    "b": 221
  },
  "hsl": {
    "h": 213.429,
    "s": 67.308,
    "l": 59.216
  },
  "oklch": {
    "l": 0.6439,
    "c": 0.13414,
    "h": 255.1
  },
  "luminance": 0.26615
}

Semantic roles & 50–950 ramp

primary

#518FDD

secondary

#E0C8AA

accent

#9E3EEA

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0D1016

muted

#7E7F84

Preview Lab

Preview with #518FDD

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

Preview Lab → · Contrast checker → · Palette generator →