#5187DA#5187DA

#5187DA is a light, vivid blue. Relative luminance 0.241; OKLCH L 62.5% C 0.139 H 258.7°. Best body text is #000000 at 5.83:1 contrast (WCAG AA passes).

Color values

HEX	#5187DA
RGB	rgb(81, 135, 218)
HSL	hsl(216, 65%, 59%)
HSV	hsv(216, 63%, 85%)
CMYK	cmyk(62.8%, 38.1%, 0%, 14.5%)
CIE-LAB	lab(56.22, 7.79, -47.82)
CIE-LCH	lch(56.22, 48.45, 279.26°)
OKLab	oklab(62.48% -0.0271 -0.1359)
OKLCH	oklch(62.48% 0.139 258.7)
XYZ	xyz(24.7077, 24.1369, 69.6729)
Luminance	0.2414 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5187DA #DAA451

analogous

#51CCDA #5187DA #5F51DA

triadic

#5187DA #DA5187 #87DA51

tetradic

#5187DA #DA51CC #DAA451 #51DA5F

square

#5187DA #DA51CC #DAA451 #51DA5F

split-complementary

#5187DA #DA5F51 #CCDA51

monochromatic

#1F4C92 #2A67C4 #5187DA #83AAE5 #B6CDEF

Accessibility & contrast

On white

3.60

#5187DA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.83

#5187DA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5187DA

5.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5187DA	#FFFFFF	#000000	##000000
##5187DA	1.00	3.60	5.83	5.83
#FFFFFF	3.60	1.00	21.00	21.00
#000000	5.83	21.00	1.00	1.00
##000000	5.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#638EDD

Deuteranopia (green-blind)

#4F81D8

Tritanopia (blue-blind)

#009AA6

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #5187da;
/* rgb */ color: rgb(81, 135, 218);
/* oklch */ color: oklch(62.5% 0.139 258.7);

Tailwind

colors: {
  custom: {
    50: '#8ea9e6',
    500: '#5187da',
    950: '#000000',
  },
}

SCSS

$custom: #5187da;
$custom-light: #8ea9e6;
$custom-dark: #000000;

JSON

{
  "hex": "#5187da",
  "rgb": {
    "r": 81,
    "g": 135,
    "b": 218
  },
  "hsl": {
    "h": 216.35,
    "s": 64.929,
    "l": 58.627
  },
  "oklch": {
    "l": 0.62479,
    "c": 0.13855,
    "h": 258.7
  },
  "luminance": 0.24139
}

Semantic roles & 50–950 ramp

primary

#5187DA

secondary

#DEC9A8

accent

#A640E8

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #5187DA

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

Preview Lab → · Contrast checker → · Palette generator →