#5187D5#5187D5

#5187D5 is a light, vivid blue. Relative luminance 0.239; OKLCH L 62.2% C 0.132 H 257.6°. Best body text is #000000 at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#5187D5
RGB	rgb(81, 135, 213)
HSL	hsl(215, 61%, 58%)
HSV	hsv(215, 62%, 84%)
CMYK	cmyk(62%, 36.6%, 0%, 16.5%)
CIE-LAB	lab(55.97, 6.11, -45.42)
CIE-LCH	lch(55.97, 45.83, 277.66°)
OKLab	oklab(62.19% -0.0282 -0.1289)
OKLCH	oklch(62.19% 0.132 257.6)
XYZ	xyz(24.0633, 23.8792, 66.2789)
Luminance	0.2388 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5187D5 #D59F51

analogous

#51C9D5 #5187D5 #5D51D5

triadic

#5187D5 #D55187 #87D551

tetradic

#5187D5 #D551C9 #D59F51 #51D55D

square

#5187D5 #D551C9 #D59F51 #51D55D

split-complementary

#5187D5 #D55D51 #C9D551

monochromatic

#214C8A #2D67BC #5187D5 #82A9E1 #B4CBED

Accessibility & contrast

On white

3.64

#5187D5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.78

#5187D5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5187D5

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5187D5	#FFFFFF	#000000	##000000
##5187D5	1.00	3.64	5.78	5.78
#FFFFFF	3.64	1.00	21.00	21.00
#000000	5.78	21.00	1.00	1.00
##000000	5.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#658DD8

Deuteranopia (green-blind)

#5380D3

Tritanopia (blue-blind)

#0099A4

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #5187d5;
/* rgb */ color: rgb(81, 135, 213);
/* oklch */ color: oklch(62.2% 0.132 257.6);

Tailwind

colors: {
  custom: {
    50: '#8da9e2',
    500: '#5187d5',
    950: '#000000',
  },
}

SCSS

$custom: #5187d5;
$custom-light: #8da9e2;
$custom-dark: #000000;

JSON

{
  "hex": "#5187d5",
  "rgb": {
    "r": 81,
    "g": 135,
    "b": 213
  },
  "hsl": {
    "h": 215.455,
    "s": 61.111,
    "l": 57.647
  },
  "oklch": {
    "l": 0.62194,
    "c": 0.13192,
    "h": 257.6
  },
  "luminance": 0.23881
}

Semantic roles & 50–950 ramp

primary

#5187D5

secondary

#DBC6A6

accent

#A344E4

background

#F9FAFD

surface

#F1F4FB

border

#CBCED4

text

#0D0F15

muted

#7E7F83

Preview Lab

Preview with #5187D5

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

Preview Lab → · Contrast checker → · Palette generator →