#516ED1#516ED1

#516ED1 is a mid, vivid blue. Relative luminance 0.175; OKLCH L 56.7% C 0.156 H 268.8°. Best body text is #FFFFFF at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#516ED1
RGB	rgb(81, 110, 209)
HSL	hsl(226, 58%, 57%)
HSV	hsv(226, 61%, 82%)
CMYK	cmyk(61.2%, 47.4%, 0%, 18%)
CIE-LAB	lab(48.89, 20.04, -54.44)
CIE-LCH	lch(48.89, 58.01, 290.21°)
OKLab	oklab(56.67% -0.0034 -0.1556)
OKLCH	oklch(56.67% 0.156 268.8)
XYZ	xyz(20.4740, 17.5029, 62.6087)
Luminance	0.1751 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516ED1 #D1B451

analogous

#51AED1 #516ED1 #7451D1

triadic

#516ED1 #D1516E #6ED151

tetradic

#516ED1 #D151AE #D1B451 #51D174

square

#516ED1 #D151AE #D1B451 #51D174

split-complementary

#516ED1 #D17451 #AED151

monochromatic

#233985 #304EB5 #516ED1 #8196DE #B2BFEB

Accessibility & contrast

On white

4.67

#516ED1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#516ED1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #516ED1

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516ED1	#FFFFFF	#000000	##FFFFFF
##516ED1	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)

#3D7AD5

Deuteranopia (green-blind)

#266FCF

Tritanopia (blue-blind)

#008595

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #516ed1;
/* rgb */ color: rgb(81, 110, 209);
/* oklch */ color: oklch(56.7% 0.156 268.8);

Tailwind

colors: {
  custom: {
    50: '#8d97e0',
    500: '#516ed1',
    950: '#000000',
  },
}

SCSS

$custom: #516ed1;
$custom-light: #8d97e0;
$custom-dark: #000000;

JSON

{
  "hex": "#516ed1",
  "rgb": {
    "r": 81,
    "g": 110,
    "b": 209
  },
  "hsl": {
    "h": 226.406,
    "s": 58.182,
    "l": 56.863
  },
  "oklch": {
    "l": 0.56666,
    "c": 0.15565,
    "h": 268.8
  },
  "luminance": 0.17505
}

Semantic roles & 50–950 ramp

primary

#516ED1

secondary

#D9CDA5

accent

#BE46E1

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #516ED1

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

Preview Lab → · Contrast checker → · Palette generator →