#5187F1#5187F1

#5187F1 is a light, vivid blue. Relative luminance 0.254; OKLCH L 63.9% C 0.169 H 262.3°. Best body text is #000000 at 6.09:1 contrast (WCAG AA passes).

Color values

HEX	#5187F1
RGB	rgb(81, 135, 241)
HSL	hsl(220, 85%, 63%)
HSV	hsv(220, 66%, 95%)
CMYK	cmyk(66.4%, 44%, 0%, 5.5%)
CIE-LAB	lab(57.49, 15.65, -58.63)
CIE-LCH	lch(57.49, 60.68, 284.95°)
OKLab	oklab(63.87% -0.0225 -0.1676)
OKLCH	oklch(63.87% 0.169 262.3)
XYZ	xyz(27.9289, 25.4254, 86.6378)
Luminance	0.2543 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5187F1 #F1BB51

analogous

#51D7F1 #5187F1 #6B51F1

triadic

#5187F1 #F15187 #87F151

tetradic

#5187F1 #F151D7 #F1BB51 #51F16B

square

#5187F1 #F151D7 #F1BB51 #51F16B

split-complementary

#5187F1 #F16B51 #D7F151

monochromatic

#0F48B9 #1860EC #5187F1 #8AAEF6 #C2D5FA

Accessibility & contrast

On white

3.45

#5187F1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.09

#5187F1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5187F1

6.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5187F1	#FFFFFF	#000000	##000000
##5187F1	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)

#5392F5

Deuteranopia (green-blind)

#3783EF

Tritanopia (blue-blind)

#009FB0

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #5187f1;
/* rgb */ color: rgb(81, 135, 241);
/* oklch */ color: oklch(63.9% 0.169 262.3);

Tailwind

colors: {
  custom: {
    50: '#92a9f6',
    500: '#5187f1',
    950: '#000000',
  },
}

SCSS

$custom: #5187f1;
$custom-light: #92a9f6;
$custom-dark: #000000;

JSON

{
  "hex": "#5187f1",
  "rgb": {
    "r": 81,
    "g": 135,
    "b": 241
  },
  "hsl": {
    "h": 219.75,
    "s": 85.106,
    "l": 63.137
  },
  "oklch": {
    "l": 0.63865,
    "c": 0.1691,
    "h": 262.3
  },
  "luminance": 0.25428
}

Semantic roles & 50–950 ramp

primary

#5187F1

secondary

#ECD8B2

accent

#9704E2

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0E0F17

muted

#7E7F85

Preview Lab

Preview with #5187F1

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

Preview Lab → · Contrast checker → · Palette generator →