#516BC1#516BC1

#516BC1 is a mid, vivid blue. Relative luminance 0.161; OKLCH L 55.0% C 0.137 H 268.9°. Best body text is #FFFFFF at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#516BC1
RGB	rgb(81, 107, 193)
HSL	hsl(226, 47%, 54%)
HSV	hsv(226, 58%, 76%)
CMYK	cmyk(58%, 44.6%, 0%, 24.3%)
CIE-LAB	lab(47.12, 16.50, -48.09)
CIE-LCH	lch(47.12, 50.84, 288.94°)
OKLab	oklab(55.01% -0.0026 -0.137)
OKLCH	oklch(55.01% 0.137 268.9)
XYZ	xyz(18.2735, 16.1135, 52.5890)
Luminance	0.1611 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516BC1 #C1A751

analogous

#51A3C1 #516BC1 #6F51C1

triadic

#516BC1 #C1516B #6BC151

tetradic

#516BC1 #C151A3 #C1A751 #51C16F

square

#516BC1 #C151A3 #C1A751 #51C16F

split-complementary

#516BC1 #C16F51 #A3C151

monochromatic

#283970 #384F9D #516BC1 #7E91D1 #ABB8E1

Accessibility & contrast

On white

4.97

#516BC1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.22

#516BC1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516BC1

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516BC1	#FFFFFF	#000000	##FFFFFF
##516BC1	1.00	4.97	4.22	4.97
#FFFFFF	4.97	1.00	21.00	1.00
#000000	4.22	21.00	1.00	21.00
##FFFFFF	4.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4475C4

Deuteranopia (green-blind)

#356BBF

Tritanopia (blue-blind)

#007E8C

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #516bc1;
/* rgb */ color: rgb(81, 107, 193);
/* oklch */ color: oklch(55.0% 0.137 268.9);

Tailwind

colors: {
  custom: {
    50: '#8b95d4',
    500: '#516bc1',
    950: '#000000',
  },
}

SCSS

$custom: #516bc1;
$custom-light: #8b95d4;
$custom-dark: #000000;

JSON

{
  "hex": "#516bc1",
  "rgb": {
    "r": 81,
    "g": 107,
    "b": 193
  },
  "hsl": {
    "h": 226.071,
    "s": 47.458,
    "l": 53.725
  },
  "oklch": {
    "l": 0.5501,
    "c": 0.13701,
    "h": 268.9
  },
  "luminance": 0.16115
}

Semantic roles & 50–950 ramp

primary

#516BC1

secondary

#CFC49F

accent

#B851D7

background

#F8F9FD

surface

#F0F1FA

border

#CBCBD3

text

#0D0D14

muted

#7D7E83

Preview Lab

Preview with #516BC1

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

Preview Lab → · Contrast checker → · Palette generator →