#516BB9#516BB9

#516BB9 is a mid, vivid blue. Relative luminance 0.158; OKLCH L 54.5% C 0.126 H 268.2°. Best body text is #FFFFFF at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#516BB9
RGB	rgb(81, 107, 185)
HSL	hsl(225, 43%, 52%)
HSV	hsv(225, 56%, 73%)
CMYK	cmyk(56.2%, 42.2%, 0%, 27.5%)
CIE-LAB	lab(46.67, 13.82, -44.19)
CIE-LCH	lch(46.67, 46.30, 287.37°)
OKLab	oklab(54.51% -0.004 -0.1255)
OKLCH	oklch(54.51% 0.126 268.2)
XYZ	xyz(17.4051, 15.7662, 48.0155)
Luminance	0.1577 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516BB9 #B99F51

analogous

#519FB9 #516BB9 #6B51B9

triadic

#516BB9 #B9516B #6BB951

tetradic

#516BB9 #B9519F #B99F51 #51B96B

square

#516BB9 #B9519F #B99F51 #51B96B

split-complementary

#516BB9 #B96B51 #9FB951

monochromatic

#293866 #3B5192 #516BB9 #7D90CB #A8B5DC

Accessibility & contrast

On white

5.06

#516BB9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.15

#516BB9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516BB9

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516BB9	#FFFFFF	#000000	##FFFFFF
##516BB9	1.00	5.06	4.15	5.06
#FFFFFF	5.06	1.00	21.00	1.00
#000000	4.15	21.00	1.00	21.00
##FFFFFF	5.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A74BC

Deuteranopia (green-blind)

#3D6AB7

Tritanopia (blue-blind)

#107C89

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #516bb9;
/* rgb */ color: rgb(81, 107, 185);
/* oklch */ color: oklch(54.5% 0.126 268.2);

Tailwind

colors: {
  custom: {
    50: '#8a95ce',
    500: '#516bb9',
    950: '#000000',
  },
}

SCSS

$custom: #516bb9;
$custom-light: #8a95ce;
$custom-dark: #000000;

JSON

{
  "hex": "#516bb9",
  "rgb": {
    "r": 81,
    "g": 107,
    "b": 185
  },
  "hsl": {
    "h": 225,
    "s": 42.623,
    "l": 52.157
  },
  "oklch": {
    "l": 0.54511,
    "c": 0.12561,
    "h": 268.2
  },
  "luminance": 0.15768
}

Semantic roles & 50–950 ramp

primary

#516BB9

secondary

#CABE9C

accent

#B355D2

background

#F8F9FC

surface

#F0F1F9

border

#CBCBD2

text

#0C0D14

muted

#7D7E82

Preview Lab

Preview with #516BB9

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

Preview Lab → · Contrast checker → · Palette generator →