#516FC8#516FC8

#516FC8 is a mid, vivid blue. Relative luminance 0.173; OKLCH L 56.3% C 0.142 H 267.7°. Best body text is #FFFFFF at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#516FC8
RGB	rgb(81, 111, 200)
HSL	hsl(225, 52%, 55%)
HSV	hsv(225, 60%, 78%)
CMYK	cmyk(59.5%, 44.5%, 0%, 21.6%)
CIE-LAB	lab(48.62, 16.36, -49.72)
CIE-LCH	lch(48.62, 52.34, 288.22°)
OKLab	oklab(56.29% -0.0057 -0.1417)
OKLCH	oklch(56.29% 0.142 267.7)
XYZ	xyz(19.4996, 17.2867, 56.9415)
Luminance	0.1729 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516FC8 #C8AA51

analogous

#51AAC8 #516FC8 #6F51C8

triadic

#516FC8 #C8516F #6FC851

tetradic

#516FC8 #C851AA #C8AA51 #51C86F

square

#516FC8 #C851AA #C8AA51 #51C86F

split-complementary

#516FC8 #C86F51 #AAC851

monochromatic

#263B79 #3552A7 #516FC8 #8095D7 #AEBCE5

Accessibility & contrast

On white

4.71

#516FC8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.46

#516FC8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516FC8

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516FC8	#FFFFFF	#000000	##FFFFFF
##516FC8	1.00	4.71	4.46	4.71
#FFFFFF	4.71	1.00	21.00	1.00
#000000	4.46	21.00	1.00	21.00
##FFFFFF	4.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4679CB

Deuteranopia (green-blind)

#356EC6

Tritanopia (blue-blind)

#008392

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #516fc8;
/* rgb */ color: rgb(81, 111, 200);
/* oklch */ color: oklch(56.3% 0.142 267.7);

Tailwind

colors: {
  custom: {
    50: '#8c97d9',
    500: '#516fc8',
    950: '#000000',
  },
}

SCSS

$custom: #516fc8;
$custom-light: #8c97d9;
$custom-dark: #000000;

JSON

{
  "hex": "#516fc8",
  "rgb": {
    "r": 81,
    "g": 111,
    "b": 200
  },
  "hsl": {
    "h": 224.874,
    "s": 51.965,
    "l": 55.098
  },
  "oklch": {
    "l": 0.56287,
    "c": 0.14186,
    "h": 267.7
  },
  "luminance": 0.17288
}

Semantic roles & 50–950 ramp

primary

#516FC8

secondary

#D3C7A1

accent

#B74CDB

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #516FC8

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

Preview Lab → · Contrast checker → · Palette generator →