#518BD4#518BD4

#518BD4 is a light, vivid cyan. Relative luminance 0.250; OKLCH L 63.0% C 0.127 H 255.0°. Best body text is #000000 at 5.99:1 contrast (WCAG AA passes).

Color values

HEX	#518BD4
RGB	rgb(81, 139, 212)
HSL	hsl(213, 60%, 57%)
HSV	hsv(213, 62%, 83%)
CMYK	cmyk(61.8%, 34.4%, 0%, 16.9%)
CIE-LAB	lab(57.04, 3.40, -43.16)
CIE-LCH	lch(57.04, 43.29, 274.50°)
OKLab	oklab(63.02% -0.0327 -0.1222)
OKLCH	oklch(63.02% 0.127 255)
XYZ	xyz(24.5054, 24.9658, 65.8020)
Luminance	0.2497 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#518BD4 #D49A51

analogous

#51CDD4 #518BD4 #5851D4

triadic

#518BD4 #D4518B #8BD451

tetradic

#518BD4 #D451CD #D49A51 #51D458

square

#518BD4 #D451CD #D49A51 #51D458

split-complementary

#518BD4 #D45851 #CDD451

monochromatic

#224F89 #2E6CBA #518BD4 #82ACE0 #B3CCEC

Accessibility & contrast

On white

3.50

#518BD4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.99

#518BD4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #518BD4

5.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##518BD4	#FFFFFF	#000000	##000000
##518BD4	1.00	3.50	5.99	5.99
#FFFFFF	3.50	1.00	21.00	21.00
#000000	5.99	21.00	1.00	1.00
##000000	5.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C90D7

Deuteranopia (green-blind)

#5A83D3

Tritanopia (blue-blind)

#009CA6

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #518bd4;
/* rgb */ color: rgb(81, 139, 212);
/* oklch */ color: oklch(63.0% 0.127 255.0);

Tailwind

colors: {
  custom: {
    50: '#8dace1',
    500: '#518bd4',
    950: '#000000',
  },
}

SCSS

$custom: #518bd4;
$custom-light: #8dace1;
$custom-dark: #000000;

JSON

{
  "hex": "#518bd4",
  "rgb": {
    "r": 81,
    "g": 139,
    "b": 212
  },
  "hsl": {
    "h": 213.435,
    "s": 60.369,
    "l": 57.451
  },
  "oklch": {
    "l": 0.63016,
    "c": 0.1265,
    "h": 255
  },
  "luminance": 0.24968
}

Semantic roles & 50–950 ramp

primary

#518BD4

secondary

#DBC3A6

accent

#9D44E4

background

#F9FAFD

surface

#F1F4FB

border

#CBCED4

text

#0D1015

muted

#7E7F83

Preview Lab

Preview with #518BD4

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

Preview Lab → · Contrast checker → · Palette generator →