#518FCB#518FCB

#518FCB is a light, moderate cyan. Relative luminance 0.257; OKLCH L 63.4% C 0.111 H 249.3°. Best body text is #000000 at 6.14:1 contrast (WCAG AA passes).

Color values

HEX	#518FCB
RGB	rgb(81, 143, 203)
HSL	hsl(210, 54%, 56%)
HSV	hsv(210, 60%, 80%)
CMYK	cmyk(60.1%, 29.6%, 0%, 20.4%)
CIE-LAB	lab(57.75, -1.92, -36.97)
CIE-LCH	lch(57.75, 37.02, 267.03°)
OKLab	oklab(63.43% -0.0394 -0.1042)
OKLCH	oklch(63.43% 0.111 249.3)
XYZ	xyz(23.9914, 25.7038, 60.1853)
Luminance	0.2571 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#518FCB #CB8D51

analogous

#51CBCA #518FCB #5152CB

triadic

#518FCB #CB518F #8FCB51

tetradic

#518FCB #CA51CB #CB8D51 #52CB51

square

#518FCB #CA51CB #CB8D51 #52CB51

split-complementary

#518FCB #CB5152 #CBCA51

monochromatic

#25527C #3370AC #518FCB #80ADD9 #AFCCE7

Accessibility & contrast

On white

3.42

#518FCB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.14

#518FCB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #518FCB

6.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##518FCB	#FFFFFF	#000000	##000000
##518FCB	1.00	3.42	6.14	6.14
#FFFFFF	3.42	1.00	21.00	21.00
#000000	6.14	21.00	1.00	1.00
##000000	6.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7591CE

Deuteranopia (green-blind)

#6585CA

Tritanopia (blue-blind)

#009DA4

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #518fcb;
/* rgb */ color: rgb(81, 143, 203);
/* oklch */ color: oklch(63.4% 0.111 249.3);

Tailwind

colors: {
  custom: {
    50: '#8cafdb',
    500: '#518fcb',
    950: '#000000',
  },
}

SCSS

$custom: #518fcb;
$custom-light: #8cafdb;
$custom-dark: #000000;

JSON

{
  "hex": "#518fcb",
  "rgb": {
    "r": 81,
    "g": 143,
    "b": 203
  },
  "hsl": {
    "h": 209.508,
    "s": 53.982,
    "l": 55.686
  },
  "oklch": {
    "l": 0.63435,
    "c": 0.1114,
    "h": 249.3
  },
  "luminance": 0.25706
}

Semantic roles & 50–950 ramp

primary

#518FCB

secondary

#D5BBA3

accent

#934ADD

background

#F9FAFD

surface

#F1F4FB

border

#CBCED4

text

#0D1015

muted

#7E7F83

Preview Lab

Preview with #518FCB

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

Preview Lab → · Contrast checker → · Palette generator →