#5181F2#5181F2

#5181F2 is a light, vivid blue. Relative luminance 0.239; OKLCH L 62.7% C 0.177 H 264.5°. Best body text is #000000 at 5.77:1 contrast (WCAG AA passes).

Color values

HEX	#5181F2
RGB	rgb(81, 129, 242)
HSL	hsl(222, 86%, 63%)
HSV	hsv(222, 67%, 95%)
CMYK	cmyk(66.5%, 46.7%, 0%, 5.1%)
CIE-LAB	lab(55.95, 19.65, -61.65)
CIE-LCH	lch(55.95, 64.71, 287.67°)
OKLab	oklab(62.7% -0.0169 -0.1766)
OKLCH	oklch(62.7% 0.177 264.5)
XYZ	xyz(27.2650, 23.8580, 87.1554)
Luminance	0.2386 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5181F2 #F2C251

analogous

#51D1F2 #5181F2 #7151F2

triadic

#5181F2 #F25181 #81F251

tetradic

#5181F2 #F251D1 #F2C251 #51F271

square

#5181F2 #F251D1 #F2C251 #51F271

split-complementary

#5181F2 #F27151 #D1F251

monochromatic

#0E41BB #1858EE #5181F2 #8AAAF6 #C3D3FB

Accessibility & contrast

On white

3.64

#5181F2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.77

#5181F2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5181F2

5.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5181F2	#FFFFFF	#000000	##000000
##5181F2	1.00	3.64	5.77	5.77
#FFFFFF	3.64	1.00	21.00	21.00
#000000	5.77	21.00	1.00	1.00
##000000	5.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#468EF6

Deuteranopia (green-blind)

#237FF0

Tritanopia (blue-blind)

#009BAE

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #5181f2;
/* rgb */ color: rgb(81, 129, 242);
/* oklch */ color: oklch(62.7% 0.177 264.5);

Tailwind

colors: {
  custom: {
    50: '#92a5f7',
    500: '#5181f2',
    950: '#000000',
  },
}

SCSS

$custom: #5181f2;
$custom-light: #92a5f7;
$custom-dark: #000000;

JSON

{
  "hex": "#5181f2",
  "rgb": {
    "r": 81,
    "g": 129,
    "b": 242
  },
  "hsl": {
    "h": 222.112,
    "s": 86.096,
    "l": 63.333
  },
  "oklch": {
    "l": 0.62701,
    "c": 0.17739,
    "h": 264.5
  },
  "luminance": 0.23861
}

Semantic roles & 50–950 ramp

primary

#5181F2

secondary

#ECDBB3

accent

#A003E3

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0E0F17

muted

#7E7F85

Preview Lab

Preview with #5181F2

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

Preview Lab → · Contrast checker → · Palette generator →