#516CC3#516CC3

#516CC3 is a mid, vivid blue. Relative luminance 0.164; OKLCH L 55.3% C 0.139 H 268.6°. Best body text is #FFFFFF at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#516CC3
RGB	rgb(81, 108, 195)
HSL	hsl(226, 49%, 54%)
HSV	hsv(226, 58%, 76%)
CMYK	cmyk(58.5%, 44.6%, 0%, 23.5%)
CIE-LAB	lab(47.51, 16.54, -48.62)
CIE-LCH	lch(47.51, 51.36, 288.79°)
OKLab	oklab(55.35% -0.0033 -0.1385)
OKLCH	oklch(55.35% 0.139 268.6)
XYZ	xyz(18.6029, 16.4131, 53.8069)
Luminance	0.1641 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516CC3 #C3A851

analogous

#51A5C3 #516CC3 #6F51C3

triadic

#516CC3 #C3516C #6CC351

tetradic

#516CC3 #C351A5 #C3A851 #51C36F

square

#516CC3 #C351A5 #C3A851 #51C36F

split-complementary

#516CC3 #C36F51 #A5C351

monochromatic

#273972 #3750A0 #516CC3 #7F92D3 #ACB9E2

Accessibility & contrast

On white

4.90

#516CC3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.28

#516CC3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516CC3

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516CC3	#FFFFFF	#000000	##FFFFFF
##516CC3	1.00	4.90	4.28	4.90
#FFFFFF	4.90	1.00	21.00	1.00
#000000	4.28	21.00	1.00	21.00
##FFFFFF	4.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4476C6

Deuteranopia (green-blind)

#346CC1

Tritanopia (blue-blind)

#007F8E

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #516cc3;
/* rgb */ color: rgb(81, 108, 195);
/* oklch */ color: oklch(55.3% 0.139 268.6);

Tailwind

colors: {
  custom: {
    50: '#8b95d6',
    500: '#516cc3',
    950: '#000000',
  },
}

SCSS

$custom: #516cc3;
$custom-light: #8b95d6;
$custom-dark: #000000;

JSON

{
  "hex": "#516cc3",
  "rgb": {
    "r": 81,
    "g": 108,
    "b": 195
  },
  "hsl": {
    "h": 225.789,
    "s": 48.718,
    "l": 54.118
  },
  "oklch": {
    "l": 0.55345,
    "c": 0.13858,
    "h": 268.6
  },
  "luminance": 0.16415
}

Semantic roles & 50–950 ramp

primary

#516CC3

secondary

#D0C5A0

accent

#B850D8

background

#F9F9FD

surface

#F1F1FA

border

#CBCBD3

text

#0D0D14

muted

#7E7E83

Preview Lab

Preview with #516CC3

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

Preview Lab → · Contrast checker → · Palette generator →