#518BF1#518BF1

#518BF1 is a light, vivid blue. Relative luminance 0.266; OKLCH L 64.7% C 0.165 H 260.8°. Best body text is #000000 at 6.31:1 contrast (WCAG AA passes).

Color values

HEX	#518BF1
RGB	rgb(81, 139, 241)
HSL	hsl(218, 85%, 63%)
HSV	hsv(218, 66%, 95%)
CMYK	cmyk(66.4%, 42.3%, 0%, 5.5%)
CIE-LAB	lab(58.57, 13.24, -56.90)
CIE-LCH	lch(58.57, 58.42, 283.10°)
OKLab	oklab(64.7% -0.0262 -0.1625)
OKLCH	oklch(64.7% 0.165 260.8)
XYZ	xyz(28.4975, 26.5626, 86.8273)
Luminance	0.2656 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#518BF1 #F1B751

analogous

#51DBF1 #518BF1 #6751F1

triadic

#518BF1 #F1518B #8BF151

tetradic

#518BF1 #F151DB #F1B751 #51F167

square

#518BF1 #F151DB #F1B751 #51F167

split-complementary

#518BF1 #F16751 #DBF151

monochromatic

#0F4CB9 #1865EC #518BF1 #8AB1F6 #C2D7FA

Accessibility & contrast

On white

3.33

#518BF1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.31

#518BF1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #518BF1

6.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##518BF1	#FFFFFF	#000000	##000000
##518BF1	1.00	3.33	6.31	6.31
#FFFFFF	3.33	1.00	21.00	21.00
#000000	6.31	21.00	1.00	1.00
##000000	6.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B95F5

Deuteranopia (green-blind)

#4086EF

Tritanopia (blue-blind)

#00A2B2

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #518bf1;
/* rgb */ color: rgb(81, 139, 241);
/* oklch */ color: oklch(64.7% 0.165 260.8);

Tailwind

colors: {
  custom: {
    50: '#92acf6',
    500: '#518bf1',
    950: '#000000',
  },
}

SCSS

$custom: #518bf1;
$custom-light: #92acf6;
$custom-dark: #000000;

JSON

{
  "hex": "#518bf1",
  "rgb": {
    "r": 81,
    "g": 139,
    "b": 241
  },
  "hsl": {
    "h": 218.25,
    "s": 85.106,
    "l": 63.137
  },
  "oklch": {
    "l": 0.64697,
    "c": 0.16456,
    "h": 260.8
  },
  "luminance": 0.26565
}

Semantic roles & 50–950 ramp

primary

#518BF1

secondary

#ECD7B2

accent

#9104E2

background

#F9FAFF

surface

#F2F4FE

border

#CCCED6

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #518BF1

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

Preview Lab → · Contrast checker → · Palette generator →