#5187DE#5187DE

#5187DE is a light, vivid blue. Relative luminance 0.244; OKLCH L 62.7% C 0.144 H 259.5°. Best body text is #000000 at 5.87:1 contrast (WCAG AA passes).

Color values

HEX	#5187DE
RGB	rgb(81, 135, 222)
HSL	hsl(217, 68%, 59%)
HSV	hsv(217, 64%, 87%)
CMYK	cmyk(63.5%, 39.2%, 0%, 12.9%)
CIE-LAB	lab(56.44, 9.15, -49.73)
CIE-LCH	lch(56.44, 50.56, 280.42°)
OKLab	oklab(62.71% -0.0262 -0.1415)
OKLCH	oklch(62.71% 0.144 259.5)
XYZ	xyz(25.2374, 24.3488, 72.4629)
Luminance	0.2435 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5187DE #DEA851

analogous

#51CEDE #5187DE #6251DE

triadic

#5187DE #DE5187 #87DE51

tetradic

#5187DE #DE51CE #DEA851 #51DE62

square

#5187DE #DE51CE #DEA851 #51DE62

split-complementary

#5187DE #DE6251 #CEDE51

monochromatic

#1D4C98 #2766CB #5187DE #84AAE8 #B8CEF2

Accessibility & contrast

On white

3.58

#5187DE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.87

#5187DE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5187DE

5.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5187DE	#FFFFFF	#000000	##000000
##5187DE	1.00	3.58	5.87	5.87
#FFFFFF	3.58	1.00	21.00	21.00
#000000	5.87	21.00	1.00	1.00
##000000	5.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#608EE1

Deuteranopia (green-blind)

#4C81DC

Tritanopia (blue-blind)

#009BA8

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #5187de;
/* rgb */ color: rgb(81, 135, 222);
/* oklch */ color: oklch(62.7% 0.144 259.5);

Tailwind

colors: {
  custom: {
    50: '#8fa9e9',
    500: '#5187de',
    950: '#000000',
  },
}

SCSS

$custom: #5187de;
$custom-light: #8fa9e9;
$custom-dark: #000000;

JSON

{
  "hex": "#5187de",
  "rgb": {
    "r": 81,
    "g": 135,
    "b": 222
  },
  "hsl": {
    "h": 217.021,
    "s": 68.116,
    "l": 59.412
  },
  "oklch": {
    "l": 0.62711,
    "c": 0.14387,
    "h": 259.5
  },
  "luminance": 0.24351
}

Semantic roles & 50–950 ramp

primary

#5187DE

secondary

#E1CCAA

accent

#A83DEB

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #5187DE

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

Preview Lab → · Contrast checker → · Palette generator →