#516EC8#516EC8

#516EC8 is a mid, vivid blue. Relative luminance 0.171; OKLCH L 56.1% C 0.143 H 268.1°. Best body text is #FFFFFF at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#516EC8
RGB	rgb(81, 110, 200)
HSL	hsl(225, 52%, 55%)
HSV	hsv(225, 60%, 78%)
CMYK	cmyk(59.5%, 45%, 0%, 21.6%)
CIE-LAB	lab(48.35, 16.98, -50.16)
CIE-LCH	lch(48.35, 52.95, 288.71°)
OKLab	oklab(56.08% -0.0047 -0.143)
OKLCH	oklch(56.08% 0.143 268.1)
XYZ	xyz(19.3911, 17.0697, 56.9053)
Luminance	0.1707 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516EC8 #C8AB51

analogous

#51AAC8 #516EC8 #6F51C8

triadic

#516EC8 #C8516E #6EC851

tetradic

#516EC8 #C851AA #C8AB51 #51C86F

square

#516EC8 #C851AA #C8AB51 #51C86F

split-complementary

#516EC8 #C86F51 #AAC851

monochromatic

#263A79 #3551A7 #516EC8 #8095D7 #AEBCE5

Accessibility & contrast

On white

4.76

#516EC8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.41

#516EC8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516EC8

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516EC8	#FFFFFF	#000000	##FFFFFF
##516EC8	1.00	4.76	4.41	4.76
#FFFFFF	4.76	1.00	21.00	1.00
#000000	4.41	21.00	1.00	21.00
##FFFFFF	4.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4478CB

Deuteranopia (green-blind)

#336EC6

Tritanopia (blue-blind)

#008291

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #516ec8;
/* rgb */ color: rgb(81, 110, 200);
/* oklch */ color: oklch(56.1% 0.143 268.1);

Tailwind

colors: {
  custom: {
    50: '#8c97d9',
    500: '#516ec8',
    950: '#000000',
  },
}

SCSS

$custom: #516ec8;
$custom-light: #8c97d9;
$custom-dark: #000000;

JSON

{
  "hex": "#516ec8",
  "rgb": {
    "r": 81,
    "g": 110,
    "b": 200
  },
  "hsl": {
    "h": 225.378,
    "s": 51.965,
    "l": 55.098
  },
  "oklch": {
    "l": 0.5608,
    "c": 0.14311,
    "h": 268.1
  },
  "luminance": 0.17071
}

Semantic roles & 50–950 ramp

primary

#516EC8

secondary

#D3C7A1

accent

#B94CDB

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #516EC8

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

Preview Lab → · Contrast checker → · Palette generator →