#516CCB#516CCB

#516CCB is a mid, vivid blue. Relative luminance 0.168; OKLCH L 55.9% C 0.150 H 269.2°. Best body text is #FFFFFF at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#516CCB
RGB	rgb(81, 108, 203)
HSL	hsl(227, 54%, 56%)
HSV	hsv(227, 60%, 80%)
CMYK	cmyk(60.1%, 46.8%, 0%, 20.4%)
CIE-LAB	lab(47.99, 19.25, -52.45)
CIE-LCH	lch(47.99, 55.87, 290.15°)
OKLab	oklab(55.86% -0.0021 -0.1498)
OKLCH	oklch(55.86% 0.15 269.2)
XYZ	xyz(19.5318, 16.7846, 58.6988)
Luminance	0.1679 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516CCB #CBB051

analogous

#51A9CB #516CCB #7351CB

triadic

#516CCB #CB516C #6CCB51

tetradic

#516CCB #CB51A9 #CBB051 #51CB73

square

#516CCB #CB51A9 #CBB051 #51CB73

split-complementary

#516CCB #CB7351 #A9CB51

monochromatic

#25387C #334EAC #516CCB #8094D9 #AFBCE7

Accessibility & contrast

On white

4.82

#516CCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.36

#516CCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516CCB

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516CCB	#FFFFFF	#000000	##FFFFFF
##516CCB	1.00	4.82	4.36	4.82
#FFFFFF	4.82	1.00	21.00	1.00
#000000	4.36	21.00	1.00	21.00
##FFFFFF	4.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E78CF

Deuteranopia (green-blind)

#2A6DC9

Tritanopia (blue-blind)

#008192

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #516ccb;
/* rgb */ color: rgb(81, 108, 203);
/* oklch */ color: oklch(55.9% 0.150 269.2);

Tailwind

colors: {
  custom: {
    50: '#8c95db',
    500: '#516ccb',
    950: '#000000',
  },
}

SCSS

$custom: #516ccb;
$custom-light: #8c95db;
$custom-dark: #000000;

JSON

{
  "hex": "#516ccb",
  "rgb": {
    "r": 81,
    "g": 108,
    "b": 203
  },
  "hsl": {
    "h": 226.721,
    "s": 53.982,
    "l": 55.686
  },
  "oklch": {
    "l": 0.55862,
    "c": 0.14982,
    "h": 269.2
  },
  "luminance": 0.16786
}

Semantic roles & 50–950 ramp

primary

#516CCB

secondary

#D5CAA3

accent

#BD4ADD

background

#F9F9FD

surface

#F1F1FB

border

#CBCBD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #516CCB

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

Preview Lab → · Contrast checker → · Palette generator →