#516CC5#516CC5

#516CC5 is a mid, vivid blue. Relative luminance 0.165; OKLCH L 55.5% C 0.141 H 268.8°. Best body text is #FFFFFF at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#516CC5
RGB	rgb(81, 108, 197)
HSL	hsl(226, 50%, 55%)
HSV	hsv(226, 59%, 77%)
CMYK	cmyk(58.9%, 45.2%, 0%, 22.7%)
CIE-LAB	lab(47.63, 17.22, -49.58)
CIE-LCH	lch(47.63, 52.49, 289.15°)
OKLab	oklab(55.47% -0.003 -0.1414)
OKLCH	oklch(55.47% 0.141 268.8)
XYZ	xyz(18.8306, 16.5042, 55.0058)
Luminance	0.1651 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516CC5 #C5AA51

analogous

#51A6C5 #516CC5 #7051C5

triadic

#516CC5 #C5516C #6CC551

tetradic

#516CC5 #C551A6 #C5AA51 #51C570

square

#516CC5 #C551A6 #C5AA51 #51C570

split-complementary

#516CC5 #C57051 #A6C551

monochromatic

#273975 #364FA3 #516CC5 #7F93D4 #ADBAE4

Accessibility & contrast

On white

4.88

#516CC5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.30

#516CC5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516CC5

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516CC5	#FFFFFF	#000000	##FFFFFF
##516CC5	1.00	4.88	4.30	4.88
#FFFFFF	4.88	1.00	21.00	1.00
#000000	4.30	21.00	1.00	21.00
##FFFFFF	4.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4376C8

Deuteranopia (green-blind)

#326CC3

Tritanopia (blue-blind)

#00808F

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #516cc5;
/* rgb */ color: rgb(81, 108, 197);
/* oklch */ color: oklch(55.5% 0.141 268.8);

Tailwind

colors: {
  custom: {
    50: '#8b95d7',
    500: '#516cc5',
    950: '#000000',
  },
}

SCSS

$custom: #516cc5;
$custom-light: #8b95d7;
$custom-dark: #000000;

JSON

{
  "hex": "#516cc5",
  "rgb": {
    "r": 81,
    "g": 108,
    "b": 197
  },
  "hsl": {
    "h": 226.034,
    "s": 50,
    "l": 54.51
  },
  "oklch": {
    "l": 0.55473,
    "c": 0.1414,
    "h": 268.8
  },
  "luminance": 0.16506
}

Semantic roles & 50–950 ramp

primary

#516CC5

secondary

#D1C6A0

accent

#B94EDA

background

#F9F9FD

surface

#F1F1FA

border

#CBCBD3

text

#0D0D14

muted

#7E7E83

Preview Lab

Preview with #516CC5

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

Preview Lab → · Contrast checker → · Palette generator →