#5187F4#5187F4

#5187F4 is a light, vivid blue. Relative luminance 0.256; OKLCH L 64.1% C 0.173 H 262.7°. Best body text is #000000 at 6.12:1 contrast (WCAG AA passes).

Color values

HEX	#5187F4
RGB	rgb(81, 135, 244)
HSL	hsl(220, 88%, 64%)
HSV	hsv(220, 67%, 96%)
CMYK	cmyk(66.8%, 44.7%, 0%, 4.3%)
CIE-LAB	lab(57.66, 16.69, -60.01)
CIE-LCH	lch(57.66, 62.29, 285.54°)
OKLab	oklab(64.05% -0.022 -0.1716)
OKLCH	oklch(64.05% 0.173 262.7)
XYZ	xyz(28.3807, 25.6061, 89.0172)
Luminance	0.2561 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5187F4 #F4BE51

analogous

#51D8F4 #5187F4 #6C51F4

triadic

#5187F4 #F45187 #87F451

tetradic

#5187F4 #F451D8 #F4BE51 #51F46C

square

#5187F4 #F451D8 #F4BE51 #51F46C

split-complementary

#5187F4 #F46C51 #D8F451

monochromatic

#0C47BF #175FF0 #5187F4 #8BAFF8 #C4D6FB

Accessibility & contrast

On white

3.43

#5187F4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.12

#5187F4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5187F4

6.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5187F4	#FFFFFF	#000000	##000000
##5187F4	1.00	3.43	6.12	6.12
#FFFFFF	3.43	1.00	21.00	21.00
#000000	6.12	21.00	1.00	1.00
##000000	6.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5193F8

Deuteranopia (green-blind)

#3384F2

Tritanopia (blue-blind)

#00A0B2

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #5187f4;
/* rgb */ color: rgb(81, 135, 244);
/* oklch */ color: oklch(64.1% 0.173 262.7);

Tailwind

colors: {
  custom: {
    50: '#92a9f8',
    500: '#5187f4',
    950: '#000000',
  },
}

SCSS

$custom: #5187f4;
$custom-light: #92a9f8;
$custom-dark: #000000;

JSON

{
  "hex": "#5187f4",
  "rgb": {
    "r": 81,
    "g": 135,
    "b": 244
  },
  "hsl": {
    "h": 220.123,
    "s": 88.108,
    "l": 63.725
  },
  "oklch": {
    "l": 0.64055,
    "c": 0.17306,
    "h": 262.7
  },
  "luminance": 0.25609
}

Semantic roles & 50–950 ramp

primary

#5187F4

secondary

#EDDAB4

accent

#9901E5

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0E0F17

muted

#7E7F85

Preview Lab

Preview with #5187F4

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

Preview Lab → · Contrast checker → · Palette generator →