#516BDD#516BDD

#516BDD is a mid, vivid blue. Relative luminance 0.175; OKLCH L 56.9% C 0.176 H 270.3°. Best body text is #FFFFFF at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#516BDD
RGB	rgb(81, 107, 221)
HSL	hsl(229, 67%, 59%)
HSV	hsv(229, 63%, 87%)
CMYK	cmyk(63.3%, 51.6%, 0%, 13.3%)
CIE-LAB	lab(48.86, 26.00, -61.29)
CIE-LCH	lch(48.86, 66.58, 292.99°)
OKLab	oklab(56.89% 0.0008 -0.1758)
OKLCH	oklch(56.89% 0.176 270.3)
XYZ	xyz(21.6978, 17.4833, 70.6238)
Luminance	0.1749 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516BDD #DDC351

analogous

#51B1DD #516BDD #7D51DD

triadic

#516BDD #DD516B #6BDD51

tetradic

#516BDD #DD51B1 #DDC351 #51DD7D

square

#516BDD #DD51B1 #DDC351 #51DD7D

split-complementary

#516BDD #DD7D51 #B1DD51

monochromatic

#1D3496 #2745C9 #516BDD #8497E7 #B7C2F1

Accessibility & contrast

On white

4.67

#516BDD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#516BDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #516BDD

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516BDD	#FFFFFF	#000000	##FFFFFF
##516BDD	1.00	4.67	4.50	4.67
#FFFFFF	4.67	1.00	21.00	1.00
#000000	4.50	21.00	1.00	21.00
##FFFFFF	4.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#267BE1

Deuteranopia (green-blind)

#006EDB

Tritanopia (blue-blind)

#00869A

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #516bdd;
/* rgb */ color: rgb(81, 107, 221);
/* oklch */ color: oklch(56.9% 0.176 270.3);

Tailwind

colors: {
  custom: {
    50: '#8f95e8',
    500: '#516bdd',
    950: '#000000',
  },
}

SCSS

$custom: #516bdd;
$custom-light: #8f95e8;
$custom-dark: #000000;

JSON

{
  "hex": "#516bdd",
  "rgb": {
    "r": 81,
    "g": 107,
    "b": 221
  },
  "hsl": {
    "h": 228.857,
    "s": 67.308,
    "l": 59.216
  },
  "oklch": {
    "l": 0.56892,
    "c": 0.17582,
    "h": 270.3
  },
  "luminance": 0.17485
}

Semantic roles & 50–950 ramp

primary

#516BDD

secondary

#E0D6AA

accent

#CA3EEA

background

#F9F9FE

surface

#F2F1FD

border

#CCCBD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #516BDD

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

Preview Lab → · Contrast checker → · Palette generator →