#516FB4#516FB4

#516FB4 is a mid, moderate blue. Relative luminance 0.164; OKLCH L 55.1% C 0.114 H 265.1°. Best body text is #FFFFFF at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#516FB4
RGB	rgb(81, 111, 180)
HSL	hsl(222, 40%, 51%)
HSV	hsv(222, 55%, 71%)
CMYK	cmyk(55%, 38.3%, 0%, 29.4%)
CIE-LAB	lab(47.51, 9.68, -39.94)
CIE-LCH	lch(47.51, 41.10, 283.62°)
OKLab	oklab(55.07% -0.0096 -0.1131)
OKLCH	oklch(55.07% 0.114 265.1)
XYZ	xyz(17.3132, 16.4122, 45.4267)
Luminance	0.1641 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516FB4 #B49651

analogous

#51A0B4 #516FB4 #6451B4

triadic

#516FB4 #B4516F #6FB451

tetradic

#516FB4 #B451A0 #B49651 #51B464

square

#516FB4 #B451A0 #B49651 #51B464

split-complementary

#516FB4 #B46451 #A0B451

monochromatic

#2A3A61 #3C548C #516FB4 #7C92C6 #A7B6D9

Accessibility & contrast

On white

4.90

#516FB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.28

#516FB4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516FB4

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516FB4	#FFFFFF	#000000	##FFFFFF
##516FB4	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)

#5376B7

Deuteranopia (green-blind)

#476DB3

Tritanopia (blue-blind)

#197E89

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #516fb4;
/* rgb */ color: rgb(81, 111, 180);
/* oklch */ color: oklch(55.1% 0.114 265.1);

Tailwind

colors: {
  custom: {
    50: '#8998cb',
    500: '#516fb4',
    950: '#000000',
  },
}

SCSS

$custom: #516fb4;
$custom-light: #8998cb;
$custom-dark: #000000;

JSON

{
  "hex": "#516fb4",
  "rgb": {
    "r": 81,
    "g": 111,
    "b": 180
  },
  "hsl": {
    "h": 221.818,
    "s": 39.759,
    "l": 51.176
  },
  "oklch": {
    "l": 0.55074,
    "c": 0.11351,
    "h": 265.1
  },
  "luminance": 0.16413
}

Semantic roles & 50–950 ramp

primary

#516FB4

secondary

#C6B99B

accent

#AB58D0

background

#F8F9FC

surface

#F0F2F8

border

#CBCCD1

text

#0C0D13

muted

#7D7E82

Preview Lab

Preview with #516FB4

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

Preview Lab → · Contrast checker → · Palette generator →