#516FC5#516FC5

#516FC5 is a mid, vivid blue. Relative luminance 0.171; OKLCH L 56.1% C 0.138 H 267.4°. Best body text is #FFFFFF at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#516FC5
RGB	rgb(81, 111, 197)
HSL	hsl(224, 50%, 55%)
HSV	hsv(224, 59%, 77%)
CMYK	cmyk(58.9%, 43.7%, 0%, 22.7%)
CIE-LAB	lab(48.45, 15.35, -48.28)
CIE-LCH	lch(48.45, 50.66, 287.64°)
OKLab	oklab(56.1% -0.0062 -0.1375)
OKLCH	oklch(56.1% 0.138 267.4)
XYZ	xyz(19.1524, 17.1479, 55.1131)
Luminance	0.1715 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516FC5 #C5A751

analogous

#51A9C5 #516FC5 #6D51C5

triadic

#516FC5 #C5516F #6FC551

tetradic

#516FC5 #C551A9 #C5A751 #51C56D

square

#516FC5 #C551A9 #C5A751 #51C56D

split-complementary

#516FC5 #C56D51 #A9C551

monochromatic

#273B75 #3652A3 #516FC5 #7F95D4 #ADBBE4

Accessibility & contrast

On white

4.74

#516FC5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.43

#516FC5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516FC5

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516FC5	#FFFFFF	#000000	##FFFFFF
##516FC5	1.00	4.74	4.43	4.74
#FFFFFF	4.74	1.00	21.00	1.00
#000000	4.43	21.00	1.00	21.00
##FFFFFF	4.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4879C8

Deuteranopia (green-blind)

#386EC3

Tritanopia (blue-blind)

#008290

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #516fc5;
/* rgb */ color: rgb(81, 111, 197);
/* oklch */ color: oklch(56.1% 0.138 267.4);

Tailwind

colors: {
  custom: {
    50: '#8b97d7',
    500: '#516fc5',
    950: '#000000',
  },
}

SCSS

$custom: #516fc5;
$custom-light: #8b97d7;
$custom-dark: #000000;

JSON

{
  "hex": "#516fc5",
  "rgb": {
    "r": 81,
    "g": 111,
    "b": 197
  },
  "hsl": {
    "h": 224.483,
    "s": 50,
    "l": 54.51
  },
  "oklch": {
    "l": 0.56098,
    "c": 0.13764,
    "h": 267.4
  },
  "luminance": 0.17149
}

Semantic roles & 50–950 ramp

primary

#516FC5

secondary

#D1C5A0

accent

#B64EDA

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0D14

muted

#7E7E83

Preview Lab

Preview with #516FC5

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

Preview Lab → · Contrast checker → · Palette generator →