#516FBD#516FBD

#516FBD is a mid, vivid blue. Relative luminance 0.168; OKLCH L 55.6% C 0.126 H 266.5°. Best body text is #FFFFFF at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#516FBD
RGB	rgb(81, 111, 189)
HSL	hsl(223, 45%, 53%)
HSV	hsv(223, 57%, 74%)
CMYK	cmyk(57.1%, 41.3%, 0%, 25.9%)
CIE-LAB	lab(48.00, 12.67, -44.39)
CIE-LCH	lch(48.00, 46.16, 285.93°)
OKLab	oklab(55.61% -0.0077 -0.1261)
OKLCH	oklch(55.61% 0.126 266.5)
XYZ	xyz(18.2600, 16.7909, 50.4130)
Luminance	0.1679 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516FBD #BD9F51

analogous

#51A5BD #516FBD #6951BD

triadic

#516FBD #BD516F #6FBD51

tetradic

#516FBD #BD51A5 #BD9F51 #51BD69

square

#516FBD #BD51A5 #BD9F51 #51BD69

split-complementary

#516FBD #BD6951 #A5BD51

monochromatic

#293B6B #395497 #516FBD #7D94CE #AAB8DF

Accessibility & contrast

On white

4.82

#516FBD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.36

#516FBD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516FBD

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516FBD	#FFFFFF	#000000	##FFFFFF
##516FBD	1.00	4.82	4.36	4.82
#FFFFFF	4.82	1.00	21.00	1.00
#000000	4.36	21.00	1.00	21.00
##FFFFFF	4.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E77C0

Deuteranopia (green-blind)

#406DBB

Tritanopia (blue-blind)

#00808D

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #516fbd;
/* rgb */ color: rgb(81, 111, 189);
/* oklch */ color: oklch(55.6% 0.126 266.5);

Tailwind

colors: {
  custom: {
    50: '#8a98d1',
    500: '#516fbd',
    950: '#000000',
  },
}

SCSS

$custom: #516fbd;
$custom-light: #8a98d1;
$custom-dark: #000000;

JSON

{
  "hex": "#516fbd",
  "rgb": {
    "r": 81,
    "g": 111,
    "b": 189
  },
  "hsl": {
    "h": 223.333,
    "s": 45,
    "l": 52.941
  },
  "oklch": {
    "l": 0.55606,
    "c": 0.12634,
    "h": 266.5
  },
  "luminance": 0.16792
}

Semantic roles & 50–950 ramp

primary

#516FBD

secondary

#CCBF9E

accent

#B153D5

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0D14

muted

#7D7E82

Preview Lab

Preview with #516FBD

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

Preview Lab → · Contrast checker → · Palette generator →