#518FCC#518FCC

#518FCC is a light, moderate cyan. Relative luminance 0.258; OKLCH L 63.5% C 0.113 H 249.7°. Best body text is #000000 at 6.15:1 contrast (WCAG AA passes).

Color values

HEX	#518FCC
RGB	rgb(81, 143, 204)
HSL	hsl(210, 55%, 56%)
HSV	hsv(210, 60%, 80%)
CMYK	cmyk(60.3%, 29.9%, 0%, 20%)
CIE-LAB	lab(57.80, -1.59, -37.47)
CIE-LCH	lch(57.80, 37.50, 267.57°)
OKLab	oklab(63.49% -0.0391 -0.1056)
OKLCH	oklch(63.49% 0.113 249.7)
XYZ	xyz(24.1109, 25.7517, 60.8150)
Luminance	0.2575 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#518FCC #CC8E51

analogous

#51CCCB #518FCC #5151CC

triadic

#518FCC #CC518F #8FCC51

tetradic

#518FCC #CB51CC #CC8E51 #51CC51

square

#518FCC #CB51CC #CC8E51 #51CC51

split-complementary

#518FCC #CC5151 #CCCB51

monochromatic

#25527E #3370AD #518FCC #80ADDA #B0CCE8

Accessibility & contrast

On white

3.41

#518FCC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.15

#518FCC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #518FCC

6.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##518FCC	#FFFFFF	#000000	##000000
##518FCC	1.00	3.41	6.15	6.15
#FFFFFF	3.41	1.00	21.00	21.00
#000000	6.15	21.00	1.00	1.00
##000000	6.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7592CF

Deuteranopia (green-blind)

#6585CB

Tritanopia (blue-blind)

#009DA5

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #518fcc;
/* rgb */ color: rgb(81, 143, 204);
/* oklch */ color: oklch(63.5% 0.113 249.7);

Tailwind

colors: {
  custom: {
    50: '#8cafdc',
    500: '#518fcc',
    950: '#000000',
  },
}

SCSS

$custom: #518fcc;
$custom-light: #8cafdc;
$custom-dark: #000000;

JSON

{
  "hex": "#518fcc",
  "rgb": {
    "r": 81,
    "g": 143,
    "b": 204
  },
  "hsl": {
    "h": 209.756,
    "s": 54.667,
    "l": 55.882
  },
  "oklch": {
    "l": 0.63486,
    "c": 0.11263,
    "h": 249.7
  },
  "luminance": 0.25754
}

Semantic roles & 50–950 ramp

primary

#518FCC

secondary

#D6BCA3

accent

#934ADE

background

#F9FAFD

surface

#F1F4FB

border

#CBCED4

text

#0D1015

muted

#7E7F83

Preview Lab

Preview with #518FCC

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

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