#516EC6#516EC6

#516EC6 is a mid, vivid blue. Relative luminance 0.170; OKLCH L 56.0% C 0.140 H 268.0°. Best body text is #FFFFFF at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#516EC6
RGB	rgb(81, 110, 198)
HSL	hsl(225, 51%, 55%)
HSV	hsv(225, 59%, 78%)
CMYK	cmyk(59.1%, 44.4%, 0%, 22.4%)
CIE-LAB	lab(48.23, 16.31, -49.19)
CIE-LCH	lch(48.23, 51.83, 288.34°)
OKLab	oklab(55.95% -0.005 -0.1402)
OKLCH	oklch(55.95% 0.14 268)
XYZ	xyz(19.1589, 16.9769, 55.6824)
Luminance	0.1698 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516EC6 #C6A951

analogous

#51A9C6 #516EC6 #6F51C6

triadic

#516EC6 #C6516E #6EC651

tetradic

#516EC6 #C651A9 #C6A951 #51C66F

square

#516EC6 #C651A9 #C6A951 #51C66F

split-complementary

#516EC6 #C66F51 #A9C651

monochromatic

#273A76 #3651A4 #516EC6 #7F94D5 #ADBBE4

Accessibility & contrast

On white

4.78

#516EC6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.40

#516EC6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516EC6

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516EC6	#FFFFFF	#000000	##FFFFFF
##516EC6	1.00	4.78	4.40	4.78
#FFFFFF	4.78	1.00	21.00	1.00
#000000	4.40	21.00	1.00	21.00
##FFFFFF	4.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4678C9

Deuteranopia (green-blind)

#356EC4

Tritanopia (blue-blind)

#008290

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #516ec6;
/* rgb */ color: rgb(81, 110, 198);
/* oklch */ color: oklch(56.0% 0.140 268.0);

Tailwind

colors: {
  custom: {
    50: '#8b97d8',
    500: '#516ec6',
    950: '#000000',
  },
}

SCSS

$custom: #516ec6;
$custom-light: #8b97d8;
$custom-dark: #000000;

JSON

{
  "hex": "#516ec6",
  "rgb": {
    "r": 81,
    "g": 110,
    "b": 198
  },
  "hsl": {
    "h": 225.128,
    "s": 50.649,
    "l": 54.706
  },
  "oklch": {
    "l": 0.55952,
    "c": 0.1403,
    "h": 268
  },
  "luminance": 0.16978
}

Semantic roles & 50–950 ramp

primary

#516EC6

secondary

#D2C6A1

accent

#B74EDA

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0D14

muted

#7E7E83

Preview Lab

Preview with #516EC6

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

Preview Lab → · Contrast checker → · Palette generator →