#516EC5#516EC5

#516EC5 is a mid, vivid blue. Relative luminance 0.169; OKLCH L 55.9% C 0.139 H 267.9°. Best body text is #FFFFFF at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#516EC5
RGB	rgb(81, 110, 197)
HSL	hsl(225, 50%, 55%)
HSV	hsv(225, 59%, 77%)
CMYK	cmyk(58.9%, 44.2%, 0%, 22.7%)
CIE-LAB	lab(48.17, 15.97, -48.71)
CIE-LCH	lch(48.17, 51.26, 288.15°)
OKLab	oklab(55.89% -0.0052 -0.1388)
OKLCH	oklch(55.89% 0.139 267.9)
XYZ	xyz(19.0439, 16.9309, 55.0769)
Luminance	0.1693 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516EC5 #C5A851

analogous

#51A8C5 #516EC5 #6E51C5

triadic

#516EC5 #C5516E #6EC551

tetradic

#516EC5 #C551A8 #C5A851 #51C56E

square

#516EC5 #C551A8 #C5A851 #51C56E

split-complementary

#516EC5 #C56E51 #A8C551

monochromatic

#273A75 #3651A3 #516EC5 #7F94D4 #ADBBE4

Accessibility & contrast

On white

4.79

#516EC5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.39

#516EC5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516EC5

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516EC5	#FFFFFF	#000000	##FFFFFF
##516EC5	1.00	4.79	4.39	4.79
#FFFFFF	4.79	1.00	21.00	1.00
#000000	4.39	21.00	1.00	21.00
##FFFFFF	4.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4778C8

Deuteranopia (green-blind)

#366DC3

Tritanopia (blue-blind)

#008190

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #516ec5;
/* rgb */ color: rgb(81, 110, 197);
/* oklch */ color: oklch(55.9% 0.139 267.9);

Tailwind

colors: {
  custom: {
    50: '#8b97d7',
    500: '#516ec5',
    950: '#000000',
  },
}

SCSS

$custom: #516ec5;
$custom-light: #8b97d7;
$custom-dark: #000000;

JSON

{
  "hex": "#516ec5",
  "rgb": {
    "r": 81,
    "g": 110,
    "b": 197
  },
  "hsl": {
    "h": 225,
    "s": 50,
    "l": 54.51
  },
  "oklch": {
    "l": 0.55889,
    "c": 0.1389,
    "h": 267.9
  },
  "luminance": 0.16932
}

Semantic roles & 50–950 ramp

primary

#516EC5

secondary

#D1C5A0

accent

#B74EDA

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0D14

muted

#7E7E83

Preview Lab

Preview with #516EC5

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

Preview Lab → · Contrast checker → · Palette generator →