#5187E8#5187E8

#5187E8 is a light, vivid blue. Relative luminance 0.249; OKLCH L 63.3% C 0.157 H 261.2°. Best body text is #000000 at 5.98:1 contrast (WCAG AA passes).

Color values

HEX	#5187E8
RGB	rgb(81, 135, 232)
HSL	hsl(219, 77%, 61%)
HSV	hsv(219, 65%, 91%)
CMYK	cmyk(65.1%, 41.8%, 0%, 9%)
CIE-LAB	lab(56.98, 12.56, -54.44)
CIE-LCH	lch(56.98, 55.87, 282.99°)
OKLab	oklab(63.31% -0.0241 -0.1553)
OKLCH	oklch(63.31% 0.157 261.2)
XYZ	xyz(26.6176, 24.9009, 79.7319)
Luminance	0.2490 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5187E8 #E8B251

analogous

#51D3E8 #5187E8 #6751E8

triadic

#5187E8 #E85187 #87E851

tetradic

#5187E8 #E851D3 #E8B251 #51E867

square

#5187E8 #E851D3 #E8B251 #51E867

split-complementary

#5187E8 #E86751 #D3E851

monochromatic

#164AA8 #1D62DE #5187E8 #87ACEF #BDD2F6

Accessibility & contrast

On white

3.51

#5187E8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.98

#5187E8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5187E8

5.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5187E8	#FFFFFF	#000000	##000000
##5187E8	1.00	3.51	5.98	5.98
#FFFFFF	3.51	1.00	21.00	21.00
#000000	5.98	21.00	1.00	1.00
##000000	5.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A90EC

Deuteranopia (green-blind)

#4282E6

Tritanopia (blue-blind)

#009DAC

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #5187e8;
/* rgb */ color: rgb(81, 135, 232);
/* oklch */ color: oklch(63.3% 0.157 261.2);

Tailwind

colors: {
  custom: {
    50: '#90a9f0',
    500: '#5187e8',
    950: '#000000',
  },
}

SCSS

$custom: #5187e8;
$custom-light: #90a9f0;
$custom-dark: #000000;

JSON

{
  "hex": "#5187e8",
  "rgb": {
    "r": 81,
    "g": 135,
    "b": 232
  },
  "hsl": {
    "h": 218.543,
    "s": 76.65,
    "l": 61.373
  },
  "oklch": {
    "l": 0.63308,
    "c": 0.15717,
    "h": 261.2
  },
  "luminance": 0.24903
}

Semantic roles & 50–950 ramp

primary

#5187E8

secondary

#E7D2AE

accent

#900DD9

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E0F16

muted

#7E7F84

Preview Lab

Preview with #5187E8

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

Preview Lab → · Contrast checker → · Palette generator →