#5188E7#5188E7

#5188E7 is a light, vivid blue. Relative luminance 0.251; OKLCH L 63.5% C 0.155 H 260.6°. Best body text is #000000 at 6.03:1 contrast (WCAG AA passes).

Color values

HEX	#5188E7
RGB	rgb(81, 136, 231)
HSL	hsl(218, 76%, 61%)
HSV	hsv(218, 65%, 91%)
CMYK	cmyk(64.9%, 41.1%, 0%, 9.4%)
CIE-LAB	lab(57.20, 11.62, -53.54)
CIE-LCH	lch(57.20, 54.78, 282.24°)
OKLab	oklab(63.46% -0.0253 -0.1526)
OKLCH	oklch(63.46% 0.155 260.6)
XYZ	xyz(26.6162, 25.1246, 79.0327)
Luminance	0.2513 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5188E7 #E7B051

analogous

#51D3E7 #5188E7 #6551E7

triadic

#5188E7 #E75188 #88E751

tetradic

#5188E7 #E751D3 #E7B051 #51E765

square

#5188E7 #E751D3 #E7B051 #51E765

split-complementary

#5188E7 #E76551 #D3E751

monochromatic

#174CA7 #1E64DC #5188E7 #87ADEE #BDD2F6

Accessibility & contrast

On white

3.49

#5188E7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.03

#5188E7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5188E7

6.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5188E7	#FFFFFF	#000000	##000000
##5188E7	1.00	3.49	6.03	6.03
#FFFFFF	3.49	1.00	21.00	21.00
#000000	6.03	21.00	1.00	1.00
##000000	6.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C91EB

Deuteranopia (green-blind)

#4583E5

Tritanopia (blue-blind)

#009EAC

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #5188e7;
/* rgb */ color: rgb(81, 136, 231);
/* oklch */ color: oklch(63.5% 0.155 260.6);

Tailwind

colors: {
  custom: {
    50: '#90aaef',
    500: '#5188e7',
    950: '#000000',
  },
}

SCSS

$custom: #5188e7;
$custom-light: #90aaef;
$custom-dark: #000000;

JSON

{
  "hex": "#5188e7",
  "rgb": {
    "r": 81,
    "g": 136,
    "b": 231
  },
  "hsl": {
    "h": 218,
    "s": 75.758,
    "l": 61.176
  },
  "oklch": {
    "l": 0.63459,
    "c": 0.15471,
    "h": 260.6
  },
  "luminance": 0.25127
}

Semantic roles & 50–950 ramp

primary

#5188E7

secondary

#E6D1AE

accent

#8E0ED8

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E0F16

muted

#7E7F84

Preview Lab

Preview with #5188E7

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

Preview Lab → · Contrast checker → · Palette generator →