#516DD2#516DD2

#516DD2 is a mid, vivid blue. Relative luminance 0.173; OKLCH L 56.5% C 0.158 H 269.2°. Best body text is #FFFFFF at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#516DD2
RGB	rgb(81, 109, 210)
HSL	hsl(227, 59%, 57%)
HSV	hsv(227, 61%, 82%)
CMYK	cmyk(61.4%, 48.1%, 0%, 17.6%)
CIE-LAB	lab(48.68, 21.00, -55.33)
CIE-LCH	lch(48.68, 59.19, 290.78°)
OKLab	oklab(56.53% -0.0022 -0.1583)
OKLCH	oklch(56.53% 0.158 269.2)
XYZ	xyz(20.4909, 17.3380, 63.2270)
Luminance	0.1734 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516DD2 #D2B651

analogous

#51ADD2 #516DD2 #7651D2

triadic

#516DD2 #D2516D #6DD251

tetradic

#516DD2 #D251AD #D2B651 #51D276

square

#516DD2 #D251AD #D2B651 #51D276

split-complementary

#516DD2 #D27651 #ADD251

monochromatic

#233886 #2F4DB7 #516DD2 #8296DF #B2BFEB

Accessibility & contrast

On white

4.70

#516DD2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.47

#516DD2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516DD2

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516DD2	#FFFFFF	#000000	##FFFFFF
##516DD2	1.00	4.70	4.47	4.70
#FFFFFF	4.70	1.00	21.00	1.00
#000000	4.47	21.00	1.00	21.00
##FFFFFF	4.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#397AD6

Deuteranopia (green-blind)

#216ED0

Tritanopia (blue-blind)

#008495

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #516dd2;
/* rgb */ color: rgb(81, 109, 210);
/* oklch */ color: oklch(56.5% 0.158 269.2);

Tailwind

colors: {
  custom: {
    50: '#8d96e0',
    500: '#516dd2',
    950: '#000000',
  },
}

SCSS

$custom: #516dd2;
$custom-light: #8d96e0;
$custom-dark: #000000;

JSON

{
  "hex": "#516dd2",
  "rgb": {
    "r": 81,
    "g": 109,
    "b": 210
  },
  "hsl": {
    "h": 226.977,
    "s": 58.904,
    "l": 57.059
  },
  "oklch": {
    "l": 0.5653,
    "c": 0.15829,
    "h": 269.2
  },
  "luminance": 0.1734
}

Semantic roles & 50–950 ramp

primary

#516DD2

secondary

#DACEA5

accent

#C046E2

background

#F9F9FD

surface

#F1F1FB

border

#CBCBD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #516DD2

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

Preview Lab → · Contrast checker → · Palette generator →