#516FCB#516FCB

#516FCB is a mid, vivid blue. Relative luminance 0.174; OKLCH L 56.5% C 0.146 H 267.9°. Best body text is #FFFFFF at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#516FCB
RGB	rgb(81, 111, 203)
HSL	hsl(225, 54%, 56%)
HSV	hsv(225, 60%, 80%)
CMYK	cmyk(60.1%, 45.3%, 0%, 20.4%)
CIE-LAB	lab(48.80, 17.38, -51.16)
CIE-LCH	lch(48.80, 54.03, 288.76°)
OKLab	oklab(56.48% -0.0052 -0.146)
OKLCH	oklch(56.48% 0.146 267.9)
XYZ	xyz(19.8536, 17.4284, 58.8061)
Luminance	0.1743 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516FCB #CBAD51

analogous

#51ACCB #516FCB #7051CB

triadic

#516FCB #CB516F #6FCB51

tetradic

#516FCB #CB51AC #CBAD51 #51CB70

square

#516FCB #CB51AC #CBAD51 #51CB70

split-complementary

#516FCB #CB7051 #ACCB51

monochromatic

#253B7C #3351AC #516FCB #8096D9 #AFBDE7

Accessibility & contrast

On white

4.68

#516FCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.49

#516FCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516FCB

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516FCB	#FFFFFF	#000000	##FFFFFF
##516FCB	1.00	4.68	4.49	4.68
#FFFFFF	4.68	1.00	21.00	1.00
#000000	4.49	21.00	1.00	21.00
##FFFFFF	4.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#447ACE

Deuteranopia (green-blind)

#316FC9

Tritanopia (blue-blind)

#008493

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #516fcb;
/* rgb */ color: rgb(81, 111, 203);
/* oklch */ color: oklch(56.5% 0.146 267.9);

Tailwind

colors: {
  custom: {
    50: '#8c97db',
    500: '#516fcb',
    950: '#000000',
  },
}

SCSS

$custom: #516fcb;
$custom-light: #8c97db;
$custom-dark: #000000;

JSON

{
  "hex": "#516fcb",
  "rgb": {
    "r": 81,
    "g": 111,
    "b": 203
  },
  "hsl": {
    "h": 225.246,
    "s": 53.982,
    "l": 55.686
  },
  "oklch": {
    "l": 0.56479,
    "c": 0.14605,
    "h": 267.9
  },
  "luminance": 0.1743
}

Semantic roles & 50–950 ramp

primary

#516FCB

secondary

#D5C9A3

accent

#B94ADD

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #516FCB

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

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