#518CCC#518CCC

#518CCC is a light, moderate cyan. Relative luminance 0.249; OKLCH L 62.8% C 0.115 H 251.9°. Best body text is #000000 at 5.97:1 contrast (WCAG AA passes).

Color values

HEX	#518CCC
RGB	rgb(81, 140, 204)
HSL	hsl(211, 55%, 56%)
HSV	hsv(211, 60%, 80%)
CMYK	cmyk(60.3%, 31.4%, 0%, 20%)
CIE-LAB	lab(56.94, 0.16, -38.81)
CIE-LCH	lch(56.94, 38.81, 270.23°)
OKLab	oklab(62.81% -0.0359 -0.1095)
OKLCH	oklch(62.81% 0.115 251.9)
XYZ	xyz(23.6666, 24.8630, 60.6669)
Luminance	0.2487 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#518CCC #CC9151

analogous

#51C9CC #518CCC #5351CC

triadic

#518CCC #CC518C #8CCC51

tetradic

#518CCC #CC51C9 #CC9151 #51CC53

square

#518CCC #CC51C9 #CC9151 #51CC53

split-complementary

#518CCC #CC5351 #C9CC51

monochromatic

#254F7E #336DAD #518CCC #80ABDA #B0CBE8

Accessibility & contrast

On white

3.52

#518CCC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.97

#518CCC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #518CCC

5.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##518CCC	#FFFFFF	#000000	##000000
##518CCC	1.00	3.52	5.97	5.97
#FFFFFF	3.52	1.00	21.00	21.00
#000000	5.97	21.00	1.00	1.00
##000000	5.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#718FCF

Deuteranopia (green-blind)

#6183CB

Tritanopia (blue-blind)

#009BA3

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #518ccc;
/* rgb */ color: rgb(81, 140, 204);
/* oklch */ color: oklch(62.8% 0.115 251.9);

Tailwind

colors: {
  custom: {
    50: '#8caddc',
    500: '#518ccc',
    950: '#000000',
  },
}

SCSS

$custom: #518ccc;
$custom-light: #8caddc;
$custom-dark: #000000;

JSON

{
  "hex": "#518ccc",
  "rgb": {
    "r": 81,
    "g": 140,
    "b": 204
  },
  "hsl": {
    "h": 211.22,
    "s": 54.667,
    "l": 55.882
  },
  "oklch": {
    "l": 0.62812,
    "c": 0.11529,
    "h": 251.9
  },
  "luminance": 0.24865
}

Semantic roles & 50–950 ramp

primary

#518CCC

secondary

#D6BDA3

accent

#974ADE

background

#F9FAFD

surface

#F1F4FB

border

#CBCED4

text

#0D1015

muted

#7E7F83

Preview Lab

Preview with #518CCC

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

Preview Lab → · Contrast checker → · Palette generator →