#5188EC#5188EC

#5188EC is a light, vivid blue. Relative luminance 0.254; OKLCH L 63.8% C 0.161 H 261.3°. Best body text is #000000 at 6.08:1 contrast (WCAG AA passes).

Color values

HEX	#5188EC
RGB	rgb(81, 136, 236)
HSL	hsl(219, 80%, 62%)
HSV	hsv(219, 66%, 93%)
CMYK	cmyk(65.7%, 42.4%, 0%, 7.5%)
CIE-LAB	lab(57.47, 13.33, -55.88)
CIE-LCH	lch(57.47, 57.44, 283.42°)
OKLab	oklab(63.76% -0.0243 -0.1595)
OKLCH	oklch(63.76% 0.161 261.3)
XYZ	xyz(27.3325, 25.4111, 82.8050)
Luminance	0.2541 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5188EC #ECB551

analogous

#51D5EC #5188EC #6851EC

triadic

#5188EC #EC5188 #88EC51

tetradic

#5188EC #EC51D5 #ECB551 #51EC68

square

#5188EC #EC51D5 #ECB551 #51EC68

split-complementary

#5188EC #EC6851 #D5EC51

monochromatic

#134BAF #1A62E6 #5188EC #88AEF2 #BFD3F8

Accessibility & contrast

On white

3.45

#5188EC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.08

#5188EC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5188EC

6.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5188EC	#FFFFFF	#000000	##000000
##5188EC	1.00	3.45	6.08	6.08
#FFFFFF	3.45	1.00	21.00	21.00
#000000	6.08	21.00	1.00	1.00
##000000	6.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5992F0

Deuteranopia (green-blind)

#4083EA

Tritanopia (blue-blind)

#009FAE

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #5188ec;
/* rgb */ color: rgb(81, 136, 236);
/* oklch */ color: oklch(63.8% 0.161 261.3);

Tailwind

colors: {
  custom: {
    50: '#91aaf3',
    500: '#5188ec',
    950: '#000000',
  },
}

SCSS

$custom: #5188ec;
$custom-light: #91aaf3;
$custom-dark: #000000;

JSON

{
  "hex": "#5188ec",
  "rgb": {
    "r": 81,
    "g": 136,
    "b": 236
  },
  "hsl": {
    "h": 218.71,
    "s": 80.311,
    "l": 62.157
  },
  "oklch": {
    "l": 0.63763,
    "c": 0.16135,
    "h": 261.3
  },
  "luminance": 0.25414
}

Semantic roles & 50–950 ramp

primary

#5188EC

secondary

#E9D5B0

accent

#9109DD

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E0F17

muted

#7E7F85

Preview Lab

Preview with #5188EC

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

Preview Lab → · Contrast checker → · Palette generator →