#516EC3#516EC3

#516EC3 is a mid, vivid blue. Relative luminance 0.168; OKLCH L 55.8% C 0.136 H 267.7°. Best body text is #FFFFFF at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#516EC3
RGB	rgb(81, 110, 195)
HSL	hsl(225, 49%, 54%)
HSV	hsv(225, 58%, 76%)
CMYK	cmyk(58.5%, 43.6%, 0%, 23.5%)
CIE-LAB	lab(48.06, 15.30, -47.75)
CIE-LCH	lch(48.06, 50.14, 287.77°)
OKLab	oklab(55.76% -0.0055 -0.136)
OKLCH	oklch(55.76% 0.136 267.7)
XYZ	xyz(18.8163, 16.8398, 53.8780)
Luminance	0.1684 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516EC3 #C3A651

analogous

#51A7C3 #516EC3 #6D51C3

triadic

#516EC3 #C3516E #6EC351

tetradic

#516EC3 #C351A7 #C3A651 #51C36D

square

#516EC3 #C351A7 #C3A651 #51C36D

split-complementary

#516EC3 #C36D51 #A7C351

monochromatic

#273A72 #3752A0 #516EC3 #7F94D3 #ACBAE2

Accessibility & contrast

On white

4.81

#516EC3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.37

#516EC3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516EC3

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516EC3	#FFFFFF	#000000	##FFFFFF
##516EC3	1.00	4.81	4.37	4.81
#FFFFFF	4.81	1.00	21.00	1.00
#000000	4.37	21.00	1.00	21.00
##FFFFFF	4.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4878C6

Deuteranopia (green-blind)

#386DC1

Tritanopia (blue-blind)

#00818F

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #516ec3;
/* rgb */ color: rgb(81, 110, 195);
/* oklch */ color: oklch(55.8% 0.136 267.7);

Tailwind

colors: {
  custom: {
    50: '#8b97d5',
    500: '#516ec3',
    950: '#000000',
  },
}

SCSS

$custom: #516ec3;
$custom-light: #8b97d5;
$custom-dark: #000000;

JSON

{
  "hex": "#516ec3",
  "rgb": {
    "r": 81,
    "g": 110,
    "b": 195
  },
  "hsl": {
    "h": 224.737,
    "s": 48.718,
    "l": 54.118
  },
  "oklch": {
    "l": 0.55763,
    "c": 0.13607,
    "h": 267.7
  },
  "luminance": 0.16841
}

Semantic roles & 50–950 ramp

primary

#516EC3

secondary

#D0C4A0

accent

#B550D8

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0D14

muted

#7E7E83

Preview Lab

Preview with #516EC3

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

Preview Lab → · Contrast checker → · Palette generator →