#5187DC#5187DC

#5187DC is a light, vivid blue. Relative luminance 0.242; OKLCH L 62.6% C 0.141 H 259.1°. Best body text is #000000 at 5.85:1 contrast (WCAG AA passes).

Color values

HEX	#5187DC
RGB	rgb(81, 135, 220)
HSL	hsl(217, 67%, 59%)
HSV	hsv(217, 63%, 86%)
CMYK	cmyk(63.2%, 38.6%, 0%, 13.7%)
CIE-LAB	lab(56.33, 8.47, -48.77)
CIE-LCH	lch(56.33, 49.50, 279.85°)
OKLab	oklab(62.6% -0.0266 -0.1387)
OKLCH	oklch(62.6% 0.141 259.1)
XYZ	xyz(24.9710, 24.2422, 71.0595)
Luminance	0.2424 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5187DC #DCA651

analogous

#51CCDC #5187DC #6151DC

triadic

#5187DC #DC5187 #87DC51

tetradic

#5187DC #DC51CC #DCA651 #51DC61

square

#5187DC #DC51CC #DCA651 #51DC61

split-complementary

#5187DC #DC6151 #CCDC51

monochromatic

#1E4C95 #2866C8 #5187DC #84AAE6 #B7CDF0

Accessibility & contrast

On white

3.59

#5187DC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.85

#5187DC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5187DC

5.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5187DC	#FFFFFF	#000000	##000000
##5187DC	1.00	3.59	5.85	5.85
#FFFFFF	3.59	1.00	21.00	21.00
#000000	5.85	21.00	1.00	1.00
##000000	5.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#628EDF

Deuteranopia (green-blind)

#4E81DA

Tritanopia (blue-blind)

#009AA7

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #5187dc;
/* rgb */ color: rgb(81, 135, 220);
/* oklch */ color: oklch(62.6% 0.141 259.1);

Tailwind

colors: {
  custom: {
    50: '#8ea9e7',
    500: '#5187dc',
    950: '#000000',
  },
}

SCSS

$custom: #5187dc;
$custom-light: #8ea9e7;
$custom-dark: #000000;

JSON

{
  "hex": "#5187dc",
  "rgb": {
    "r": 81,
    "g": 135,
    "b": 220
  },
  "hsl": {
    "h": 216.691,
    "s": 66.507,
    "l": 59.02
  },
  "oklch": {
    "l": 0.62595,
    "c": 0.14121,
    "h": 259.1
  },
  "luminance": 0.24245
}

Semantic roles & 50–950 ramp

primary

#5187DC

secondary

#E0CAA9

accent

#A73EE9

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #5187DC

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

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