#518BE4#518BE4

#518BE4 is a light, vivid blue. Relative luminance 0.258; OKLCH L 63.9% C 0.147 H 258.7°. Best body text is #000000 at 6.16:1 contrast (WCAG AA passes).

Color values

HEX	#518BE4
RGB	rgb(81, 139, 228)
HSL	hsl(216, 73%, 61%)
HSV	hsv(216, 64%, 89%)
CMYK	cmyk(64.5%, 39%, 0%, 10.6%)
CIE-LAB	lab(57.86, 8.79, -50.81)
CIE-LCH	lch(57.86, 51.57, 279.82°)
OKLab	oklab(63.92% -0.0288 -0.1446)
OKLCH	oklch(63.92% 0.147 258.7)
XYZ	xyz(26.6245, 25.8134, 76.9631)
Luminance	0.2582 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#518BE4 #E4AA51

analogous

#51D4E4 #518BE4 #6151E4

triadic

#518BE4 #E4518B #8BE451

tetradic

#518BE4 #E451D4 #E4AA51 #51E461

square

#518BE4 #E451D4 #E4AA51 #51E461

split-complementary

#518BE4 #E46151 #D4E451

monochromatic

#194FA2 #2169D7 #518BE4 #86AEEC #BBD2F4

Accessibility & contrast

On white

3.41

#518BE4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.16

#518BE4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #518BE4

6.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##518BE4	#FFFFFF	#000000	##000000
##518BE4	1.00	3.41	6.16	6.16
#FFFFFF	3.41	1.00	21.00	21.00
#000000	6.16	21.00	1.00	1.00
##000000	6.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6392E8

Deuteranopia (green-blind)

#4E85E2

Tritanopia (blue-blind)

#009FAC

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #518be4;
/* rgb */ color: rgb(81, 139, 228);
/* oklch */ color: oklch(63.9% 0.147 258.7);

Tailwind

colors: {
  custom: {
    50: '#8faced',
    500: '#518be4',
    950: '#000000',
  },
}

SCSS

$custom: #518be4;
$custom-light: #8faced;
$custom-dark: #000000;

JSON

{
  "hex": "#518be4",
  "rgb": {
    "r": 81,
    "g": 139,
    "b": 228
  },
  "hsl": {
    "h": 216.327,
    "s": 73.134,
    "l": 60.588
  },
  "oklch": {
    "l": 0.6392,
    "c": 0.14745,
    "h": 258.7
  },
  "luminance": 0.25816
}

Semantic roles & 50–950 ramp

primary

#518BE4

secondary

#E4CEAC

accent

#8810D5

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #518BE4

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

Preview Lab → · Contrast checker → · Palette generator →