#516DD5#516DD5

#516DD5 is a mid, vivid blue. Relative luminance 0.175; OKLCH L 56.7% C 0.162 H 269.3°. Best body text is #FFFFFF at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#516DD5
RGB	rgb(81, 109, 213)
HSL	hsl(227, 61%, 58%)
HSV	hsv(227, 62%, 84%)
CMYK	cmyk(62%, 48.8%, 0%, 16.5%)
CIE-LAB	lab(48.87, 22.02, -56.74)
CIE-LCH	lch(48.87, 60.87, 291.21°)
OKLab	oklab(56.73% -0.0019 -0.1624)
OKLCH	oklch(56.73% 0.162 269.3)
XYZ	xyz(20.8682, 17.4889, 65.2139)
Luminance	0.1749 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516DD5 #D5B951

analogous

#51AFD5 #516DD5 #7751D5

triadic

#516DD5 #D5516D #6DD551

tetradic

#516DD5 #D551AF #D5B951 #51D577

square

#516DD5 #D551AF #D5B951 #51D577

split-complementary

#516DD5 #D57751 #AFD551

monochromatic

#21388A #2D4BBC #516DD5 #8296E1 #B4C0ED

Accessibility & contrast

On white

4.67

#516DD5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#516DD5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #516DD5

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516DD5	#FFFFFF	#000000	##FFFFFF
##516DD5	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)

#367AD9

Deuteranopia (green-blind)

#1A6ED3

Tritanopia (blue-blind)

#008597

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #516dd5;
/* rgb */ color: rgb(81, 109, 213);
/* oklch */ color: oklch(56.7% 0.162 269.3);

Tailwind

colors: {
  custom: {
    50: '#8e96e2',
    500: '#516dd5',
    950: '#000000',
  },
}

SCSS

$custom: #516dd5;
$custom-light: #8e96e2;
$custom-dark: #000000;

JSON

{
  "hex": "#516dd5",
  "rgb": {
    "r": 81,
    "g": 109,
    "b": 213
  },
  "hsl": {
    "h": 227.273,
    "s": 61.111,
    "l": 57.647
  },
  "oklch": {
    "l": 0.56732,
    "c": 0.16242,
    "h": 269.3
  },
  "luminance": 0.17491
}

Semantic roles & 50–950 ramp

primary

#516DD5

secondary

#DBD0A6

accent

#C244E4

background

#F9F9FD

surface

#F2F1FB

border

#CCCBD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #516DD5

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

Preview Lab → · Contrast checker → · Palette generator →