#518BB2#518BB2

#518BB2 is a mid, moderate cyan. Relative luminance 0.234; OKLCH L 61.3% C 0.085 H 239.6°. Best body text is #000000 at 5.69:1 contrast (WCAG AA passes).

Color values

HEX	#518BB2
RGB	rgb(81, 139, 178)
HSL	hsl(204, 39%, 51%)
HSV	hsv(204, 54%, 70%)
CMYK	cmyk(54.5%, 21.9%, 0%, 30.2%)
CIE-LAB	lab(55.51, -7.61, -26.28)
CIE-LCH	lch(55.51, 27.36, 253.86°)
OKLab	oklab(61.31% -0.043 -0.0734)
OKLCH	oklch(61.31% 0.085 239.6)
XYZ	xyz(20.6589, 23.4272, 45.5441)
Luminance	0.2343 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#518BB2 #B27851

analogous

#51B2A8 #518BB2 #515AB2

triadic

#518BB2 #B2518B #8BB251

tetradic

#518BB2 #A851B2 #B27851 #5AB251

square

#518BB2 #A851B2 #B27851 #5AB251

split-complementary

#518BB2 #B2515A #B2A851

monochromatic

#2A495F #3D6A89 #518BB2 #7BA7C5 #A6C4D8

Accessibility & contrast

On white

3.69

#518BB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.69

#518BB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #518BB2

5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##518BB2	#FFFFFF	#000000	##000000
##518BB2	1.00	3.69	5.69	5.69
#FFFFFF	3.69	1.00	21.00	21.00
#000000	5.69	21.00	1.00	1.00
##000000	5.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A8BB4

Deuteranopia (green-blind)

#6C81B1

Tritanopia (blue-blind)

#0D9598

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #518bb2;
/* rgb */ color: rgb(81, 139, 178);
/* oklch */ color: oklch(61.3% 0.085 239.6);

Tailwind

colors: {
  custom: {
    50: '#89acc9',
    500: '#518bb2',
    950: '#000000',
  },
}

SCSS

$custom: #518bb2;
$custom-light: #89acc9;
$custom-dark: #000000;

JSON

{
  "hex": "#518bb2",
  "rgb": {
    "r": 81,
    "g": 139,
    "b": 178
  },
  "hsl": {
    "h": 204.124,
    "s": 38.645,
    "l": 50.784
  },
  "oklch": {
    "l": 0.61307,
    "c": 0.08506,
    "h": 239.6
  },
  "luminance": 0.23429
}

Semantic roles & 50–950 ramp

primary

#518BB2

secondary

#C5AB9A

accent

#8859CF

background

#F8FAFC

surface

#F0F4F8

border

#CBCED1

text

#0C1013

muted

#7D7F82

Preview Lab

Preview with #518BB2

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

Preview Lab → · Contrast checker → · Palette generator →