#518FCF#518FCF

#518FCF is a light, moderate cyan. Relative luminance 0.259; OKLCH L 63.6% C 0.116 H 250.8°. Best body text is #000000 at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#518FCF
RGB	rgb(81, 143, 207)
HSL	hsl(210, 57%, 56%)
HSV	hsv(210, 61%, 81%)
CMYK	cmyk(60.9%, 30.9%, 0%, 18.8%)
CIE-LAB	lab(57.94, -0.61, -38.94)
CIE-LCH	lch(57.94, 38.94, 269.11°)
OKLab	oklab(63.64% -0.0383 -0.1099)
OKLCH	oklch(63.64% 0.116 250.8)
XYZ	xyz(24.4742, 25.8970, 62.7282)
Luminance	0.2590 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#518FCF #CF9151

analogous

#51CECF #518FCF #5251CF

triadic

#518FCF #CF518F #8FCF51

tetradic

#518FCF #CF51CE #CF9151 #51CF52

square

#518FCF #CF51CE #CF9151 #51CF52

split-complementary

#518FCF #CF5251 #CECF51

monochromatic

#245282 #3170B2 #518FCF #81AEDC #B1CDE9

Accessibility & contrast

On white

3.40

#518FCF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.18

#518FCF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #518FCF

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##518FCF	#FFFFFF	#000000	##000000
##518FCF	1.00	3.40	6.18	6.18
#FFFFFF	3.40	1.00	21.00	21.00
#000000	6.18	21.00	1.00	1.00
##000000	6.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7492D2

Deuteranopia (green-blind)

#6386CE

Tritanopia (blue-blind)

#009EA6

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #518fcf;
/* rgb */ color: rgb(81, 143, 207);
/* oklch */ color: oklch(63.6% 0.116 250.8);

Tailwind

colors: {
  custom: {
    50: '#8cafde',
    500: '#518fcf',
    950: '#000000',
  },
}

SCSS

$custom: #518fcf;
$custom-light: #8cafde;
$custom-dark: #000000;

JSON

{
  "hex": "#518fcf",
  "rgb": {
    "r": 81,
    "g": 143,
    "b": 207
  },
  "hsl": {
    "h": 210.476,
    "s": 56.757,
    "l": 56.471
  },
  "oklch": {
    "l": 0.63641,
    "c": 0.11635,
    "h": 250.8
  },
  "luminance": 0.25899
}

Semantic roles & 50–950 ramp

primary

#518FCF

secondary

#D8BEA4

accent

#9548E0

background

#F9FAFD

surface

#F1F4FB

border

#CBCED4

text

#0D1015

muted

#7E7F83

Preview Lab

Preview with #518FCF

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

Preview Lab → · Contrast checker → · Palette generator →