#518FBB#518FBB

#518FBB is a light, moderate cyan. Relative luminance 0.250; OKLCH L 62.7% C 0.093 H 241.2°. Best body text is #000000 at 6.00:1 contrast (WCAG AA passes).

Color values

HEX	#518FBB
RGB	rgb(81, 143, 187)
HSL	hsl(205, 44%, 53%)
HSV	hsv(205, 57%, 73%)
CMYK	cmyk(56.7%, 23.5%, 0%, 26.7%)
CIE-LAB	lab(57.06, -7.06, -29.01)
CIE-LCH	lch(57.06, 29.86, 256.33°)
OKLab	oklab(62.65% -0.0445 -0.0812)
OKLCH	oklch(62.65% 0.093 241.2)
XYZ	xyz(22.1821, 24.9802, 50.6568)
Luminance	0.2498 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#518FBB #BB7D51

analogous

#51BBB2 #518FBB #515ABB

triadic

#518FBB #BB518F #8FBB51

tetradic

#518FBB #B251BB #BB7D51 #5ABB51

square

#518FBB #B251BB #BB7D51 #5ABB51

split-complementary

#518FBB #BB515A #BBB251

monochromatic

#294E69 #3A6F95 #518FBB #7DABCC #A9C8DD

Accessibility & contrast

On white

3.50

#518FBB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.00

#518FBB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #518FBB

6.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##518FBB	#FFFFFF	#000000	##000000
##518FBB	1.00	3.50	6.00	6.00
#FFFFFF	3.50	1.00	21.00	21.00
#000000	6.00	21.00	1.00	1.00
##000000	6.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C8FBD

Deuteranopia (green-blind)

#6D84BA

Tritanopia (blue-blind)

#009A9E

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #518fbb;
/* rgb */ color: rgb(81, 143, 187);
/* oklch */ color: oklch(62.7% 0.093 241.2);

Tailwind

colors: {
  custom: {
    50: '#8aafcf',
    500: '#518fbb',
    950: '#000000',
  },
}

SCSS

$custom: #518fbb;
$custom-light: #8aafcf;
$custom-dark: #000000;

JSON

{
  "hex": "#518fbb",
  "rgb": {
    "r": 81,
    "g": 143,
    "b": 187
  },
  "hsl": {
    "h": 204.906,
    "s": 43.802,
    "l": 52.549
  },
  "oklch": {
    "l": 0.62654,
    "c": 0.09262,
    "h": 241.2
  },
  "luminance": 0.24982
}

Semantic roles & 50–950 ramp

primary

#518FBB

secondary

#CBB09D

accent

#8954D4

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0C1014

muted

#7D7F82

Preview Lab

Preview with #518FBB

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

Preview Lab → · Contrast checker → · Palette generator →