#5188DC#5188DC

#5188DC is a light, vivid blue. Relative luminance 0.245; OKLCH L 62.8% C 0.140 H 258.6°. Best body text is #000000 at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#5188DC
RGB	rgb(81, 136, 220)
HSL	hsl(216, 67%, 59%)
HSV	hsv(216, 63%, 86%)
CMYK	cmyk(63.2%, 38.2%, 0%, 13.7%)
CIE-LAB	lab(56.61, 7.87, -48.33)
CIE-LCH	lch(56.61, 48.97, 279.25°)
OKLab	oklab(62.81% -0.0276 -0.1374)
OKLCH	oklch(62.81% 0.14 258.6)
XYZ	xyz(25.1112, 24.5226, 71.1063)
Luminance	0.2452 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5188DC #DCA551

analogous

#51CEDC #5188DC #6051DC

triadic

#5188DC #DC5188 #88DC51

tetradic

#5188DC #DC51CE #DCA551 #51DC60

square

#5188DC #DC51CE #DCA551 #51DC60

split-complementary

#5188DC #DC6051 #CEDC51

monochromatic

#1E4D95 #2867C8 #5188DC #84ABE6 #B7CEF0

Accessibility & contrast

On white

3.56

#5188DC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.91

#5188DC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5188DC

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5188DC	#FFFFFF	#000000	##000000
##5188DC	1.00	3.56	5.91	5.91
#FFFFFF	3.56	1.00	21.00	21.00
#000000	5.91	21.00	1.00	1.00
##000000	5.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#638FDF

Deuteranopia (green-blind)

#4F82DA

Tritanopia (blue-blind)

#009BA7

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #5188dc;
/* rgb */ color: rgb(81, 136, 220);
/* oklch */ color: oklch(62.8% 0.140 258.6);

Tailwind

colors: {
  custom: {
    50: '#8eaae7',
    500: '#5188dc',
    950: '#000000',
  },
}

SCSS

$custom: #5188dc;
$custom-light: #8eaae7;
$custom-dark: #000000;

JSON

{
  "hex": "#5188dc",
  "rgb": {
    "r": 81,
    "g": 136,
    "b": 220
  },
  "hsl": {
    "h": 216.259,
    "s": 66.507,
    "l": 59.02
  },
  "oklch": {
    "l": 0.6281,
    "c": 0.14012,
    "h": 258.6
  },
  "luminance": 0.24525
}

Semantic roles & 50–950 ramp

primary

#5188DC

secondary

#E0CAA9

accent

#A63EE9

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #5188DC

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

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