#518DD3#518DD3

#518DD3 is a light, vivid cyan. Relative luminance 0.255; OKLCH L 63.4% C 0.123 H 253.5°. Best body text is #000000 at 6.10:1 contrast (WCAG AA passes).

Color values

HEX	#518DD3
RGB	rgb(81, 141, 211)
HSL	hsl(212, 60%, 57%)
HSV	hsv(212, 62%, 83%)
CMYK	cmyk(61.6%, 33.2%, 0%, 17.3%)
CIE-LAB	lab(57.56, 1.89, -41.78)
CIE-LCH	lch(57.56, 41.82, 272.58°)
OKLab	oklab(63.41% -0.035 -0.1182)
OKLCH	oklch(63.41% 0.123 253.5)
XYZ	xyz(24.6718, 25.4999, 65.2372)
Luminance	0.2550 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#518DD3 #D39751

analogous

#51CED3 #518DD3 #5651D3

triadic

#518DD3 #D3518D #8DD351

tetradic

#518DD3 #D351CE #D39751 #51D356

square

#518DD3 #D351CE #D39751 #51D356

split-complementary

#518DD3 #D35651 #CED351

monochromatic

#225187 #2F6EB8 #518DD3 #82ADDF #B3CDEC

Accessibility & contrast

On white

3.44

#518DD3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.10

#518DD3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #518DD3

6.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##518DD3	#FFFFFF	#000000	##000000
##518DD3	1.00	3.44	6.10	6.10
#FFFFFF	3.44	1.00	21.00	21.00
#000000	6.10	21.00	1.00	1.00
##000000	6.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F91D6

Deuteranopia (green-blind)

#5E85D2

Tritanopia (blue-blind)

#009DA6

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #518dd3;
/* rgb */ color: rgb(81, 141, 211);
/* oklch */ color: oklch(63.4% 0.123 253.5);

Tailwind

colors: {
  custom: {
    50: '#8daee1',
    500: '#518dd3',
    950: '#000000',
  },
}

SCSS

$custom: #518dd3;
$custom-light: #8daee1;
$custom-dark: #000000;

JSON

{
  "hex": "#518dd3",
  "rgb": {
    "r": 81,
    "g": 141,
    "b": 211
  },
  "hsl": {
    "h": 212.308,
    "s": 59.633,
    "l": 57.255
  },
  "oklch": {
    "l": 0.63405,
    "c": 0.12325,
    "h": 253.5
  },
  "luminance": 0.25502
}

Semantic roles & 50–950 ramp

primary

#518DD3

secondary

#DAC2A6

accent

#9A45E3

background

#F9FAFD

surface

#F1F4FB

border

#CBCED4

text

#0D1015

muted

#7E7F83

Preview Lab

Preview with #518DD3

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

Preview Lab → · Contrast checker → · Palette generator →