#5188F0#5188F0

#5188F0 is a light, vivid blue. Relative luminance 0.256; OKLCH L 64.0% C 0.167 H 261.8°. Best body text is #000000 at 6.13:1 contrast (WCAG AA passes).

Color values

HEX	#5188F0
RGB	rgb(81, 136, 240)
HSL	hsl(219, 84%, 63%)
HSV	hsv(219, 66%, 94%)
CMYK	cmyk(66.3%, 43.3%, 0%, 5.9%)
CIE-LAB	lab(57.70, 14.70, -57.73)
CIE-LCH	lch(57.70, 59.58, 284.29°)
OKLab	oklab(64.01% -0.0236 -0.165)
OKLCH	oklch(64.01% 0.167 261.8)
XYZ	xyz(27.9201, 25.6462, 85.9000)
Luminance	0.2565 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5188F0 #F0B951

analogous

#51D8F0 #5188F0 #6951F0

triadic

#5188F0 #F05188 #88F051

tetradic

#5188F0 #F051D8 #F0B951 #51F069

square

#5188F0 #F051D8 #F0B951 #51F069

split-complementary

#5188F0 #F06951 #D8F051

monochromatic

#104AB7 #1961EB #5188F0 #89AFF5 #C2D5FA

Accessibility & contrast

On white

3.43

#5188F0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.13

#5188F0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5188F0

6.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5188F0	#FFFFFF	#000000	##000000
##5188F0	1.00	3.43	6.13	6.13
#FFFFFF	3.43	1.00	21.00	21.00
#000000	6.13	21.00	1.00	1.00
##000000	6.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5692F4

Deuteranopia (green-blind)

#3B84EE

Tritanopia (blue-blind)

#00A0B0

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #5188f0;
/* rgb */ color: rgb(81, 136, 240);
/* oklch */ color: oklch(64.0% 0.167 261.8);

Tailwind

colors: {
  custom: {
    50: '#91aaf5',
    500: '#5188f0',
    950: '#000000',
  },
}

SCSS

$custom: #5188f0;
$custom-light: #91aaf5;
$custom-dark: #000000;

JSON

{
  "hex": "#5188f0",
  "rgb": {
    "r": 81,
    "g": 136,
    "b": 240
  },
  "hsl": {
    "h": 219.245,
    "s": 84.127,
    "l": 62.941
  },
  "oklch": {
    "l": 0.6401,
    "c": 0.16663,
    "h": 261.8
  },
  "luminance": 0.25649
}

Semantic roles & 50–950 ramp

primary

#5188F0

secondary

#EBD7B2

accent

#9505E1

background

#F9FAFF

surface

#F2F4FE

border

#CCCED6

text

#0E0F17

muted

#7E7F85

Preview Lab

Preview with #5188F0

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

Preview Lab → · Contrast checker → · Palette generator →