#516DD3#516DD3

#516DD3 is a mid, vivid blue. Relative luminance 0.174; OKLCH L 56.6% C 0.160 H 269.2°. Best body text is #FFFFFF at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#516DD3
RGB	rgb(81, 109, 211)
HSL	hsl(227, 60%, 57%)
HSV	hsv(227, 62%, 83%)
CMYK	cmyk(61.6%, 48.3%, 0%, 17.3%)
CIE-LAB	lab(48.75, 21.34, -55.80)
CIE-LCH	lch(48.75, 59.75, 290.93°)
OKLab	oklab(56.6% -0.0021 -0.1596)
OKLCH	oklch(56.6% 0.16 269.2)
XYZ	xyz(20.6159, 17.3880, 63.8852)
Luminance	0.1739 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516DD3 #D3B751

analogous

#51AED3 #516DD3 #7651D3

triadic

#516DD3 #D3516D #6DD351

tetradic

#516DD3 #D351AE #D3B751 #51D376

square

#516DD3 #D351AE #D3B751 #51D376

split-complementary

#516DD3 #D37651 #AED351

monochromatic

#223887 #2F4CB8 #516DD3 #8296DF #B3BFEC

Accessibility & contrast

On white

4.69

#516DD3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.48

#516DD3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516DD3

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516DD3	#FFFFFF	#000000	##FFFFFF
##516DD3	1.00	4.69	4.48	4.69
#FFFFFF	4.69	1.00	21.00	1.00
#000000	4.48	21.00	1.00	21.00
##FFFFFF	4.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#387AD7

Deuteranopia (green-blind)

#1F6ED1

Tritanopia (blue-blind)

#008496

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #516dd3;
/* rgb */ color: rgb(81, 109, 211);
/* oklch */ color: oklch(56.6% 0.160 269.2);

Tailwind

colors: {
  custom: {
    50: '#8d96e1',
    500: '#516dd3',
    950: '#000000',
  },
}

SCSS

$custom: #516dd3;
$custom-light: #8d96e1;
$custom-dark: #000000;

JSON

{
  "hex": "#516dd3",
  "rgb": {
    "r": 81,
    "g": 109,
    "b": 211
  },
  "hsl": {
    "h": 227.077,
    "s": 59.633,
    "l": 57.255
  },
  "oklch": {
    "l": 0.56597,
    "c": 0.15966,
    "h": 269.2
  },
  "luminance": 0.1739
}

Semantic roles & 50–950 ramp

primary

#516DD3

secondary

#DACFA6

accent

#C145E3

background

#F9F9FD

surface

#F2F1FB

border

#CCCBD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #516DD3

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

Preview Lab → · Contrast checker → · Palette generator →