#518CDF#518CDF

#518CDF is a light, vivid blue. Relative luminance 0.258; OKLCH L 63.8% C 0.140 H 257.2°. Best body text is #000000 at 6.17:1 contrast (WCAG AA passes).

Color values

HEX	#518CDF
RGB	rgb(81, 140, 223)
HSL	hsl(215, 69%, 60%)
HSV	hsv(215, 64%, 87%)
CMYK	cmyk(63.7%, 37.2%, 0%, 12.5%)
CIE-LAB	lab(57.88, 6.50, -48.00)
CIE-LCH	lch(57.88, 48.44, 277.71°)
OKLab	oklab(63.85% -0.031 -0.1363)
OKLCH	oklch(63.85% 0.14 257.2)
XYZ	xyz(26.0859, 25.8307, 73.4088)
Luminance	0.2583 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#518CDF #DFA451

analogous

#51D3DF #518CDF #5D51DF

triadic

#518CDF #DF518C #8CDF51

tetradic

#518CDF #DF51D3 #DFA451 #51DF5D

square

#518CDF #DF51D3 #DFA451 #51DF5D

split-complementary

#518CDF #DF5D51 #D3DF51

monochromatic

#1C5099 #266BCD #518CDF #85AEE9 #B8D0F2

Accessibility & contrast

On white

3.41

#518CDF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.17

#518CDF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #518CDF

6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##518CDF	#FFFFFF	#000000	##000000
##518CDF	1.00	3.41	6.17	6.17
#FFFFFF	3.41	1.00	21.00	21.00
#000000	6.17	21.00	1.00	1.00
##000000	6.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6892E2

Deuteranopia (green-blind)

#5485DD

Tritanopia (blue-blind)

#009FAB

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #518cdf;
/* rgb */ color: rgb(81, 140, 223);
/* oklch */ color: oklch(63.8% 0.140 257.2);

Tailwind

colors: {
  custom: {
    50: '#8fade9',
    500: '#518cdf',
    950: '#000000',
  },
}

SCSS

$custom: #518cdf;
$custom-light: #8fade9;
$custom-dark: #000000;

JSON

{
  "hex": "#518cdf",
  "rgb": {
    "r": 81,
    "g": 140,
    "b": 223
  },
  "hsl": {
    "h": 215.07,
    "s": 68.932,
    "l": 59.608
  },
  "oklch": {
    "l": 0.63848,
    "c": 0.13983,
    "h": 257.2
  },
  "luminance": 0.25833
}

Semantic roles & 50–950 ramp

primary

#518CDF

secondary

#E1CBAA

accent

#A33CEC

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0D1016

muted

#7E7F84

Preview Lab

Preview with #518CDF

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

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