#518BDD#518BDD

#518BDD is a light, vivid blue. Relative luminance 0.254; OKLCH L 63.5% C 0.138 H 257.3°. Best body text is #000000 at 6.09:1 contrast (WCAG AA passes).

Color values

HEX	#518BDD
RGB	rgb(81, 139, 221)
HSL	hsl(215, 67%, 59%)
HSV	hsv(215, 63%, 87%)
CMYK	cmyk(63.3%, 37.1%, 0%, 13.3%)
CIE-LAB	lab(57.49, 6.42, -47.49)
CIE-LCH	lch(57.49, 47.92, 277.70°)
OKLab	oklab(63.52% -0.0304 -0.1349)
OKLCH	oklch(63.52% 0.138 257.3)
XYZ	xyz(25.6724, 25.4326, 71.9486)
Luminance	0.2544 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#518BDD #DDA351

analogous

#51D1DD #518BDD #5D51DD

triadic

#518BDD #DD518B #8BDD51

tetradic

#518BDD #DD51D1 #DDA351 #51DD5D

square

#518BDD #DD51D1 #DDA351 #51DD5D

split-complementary

#518BDD #DD5D51 #D1DD51

monochromatic

#1D4F96 #276BC9 #518BDD #84ADE7 #B7CFF1

Accessibility & contrast

On white

3.45

#518BDD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.09

#518BDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #518BDD

6.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##518BDD	#FFFFFF	#000000	##000000
##518BDD	1.00	3.45	6.09	6.09
#FFFFFF	3.45	1.00	21.00	21.00
#000000	6.09	21.00	1.00	1.00
##000000	6.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6791E0

Deuteranopia (green-blind)

#5484DB

Tritanopia (blue-blind)

#009EA9

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #518bdd;
/* rgb */ color: rgb(81, 139, 221);
/* oklch */ color: oklch(63.5% 0.138 257.3);

Tailwind

colors: {
  custom: {
    50: '#8eace8',
    500: '#518bdd',
    950: '#000000',
  },
}

SCSS

$custom: #518bdd;
$custom-light: #8eace8;
$custom-dark: #000000;

JSON

{
  "hex": "#518bdd",
  "rgb": {
    "r": 81,
    "g": 139,
    "b": 221
  },
  "hsl": {
    "h": 215.143,
    "s": 67.308,
    "l": 59.216
  },
  "oklch": {
    "l": 0.63517,
    "c": 0.13825,
    "h": 257.3
  },
  "luminance": 0.25435
}

Semantic roles & 50–950 ramp

primary

#518BDD

secondary

#E0CAAA

accent

#A33EEA

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0D1016

muted

#7E7F84

Preview Lab

Preview with #518BDD

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

Preview Lab → · Contrast checker → · Palette generator →