#516BB8#516BB8

#516BB8 is a mid, vivid blue. Relative luminance 0.157; OKLCH L 54.4% C 0.124 H 268.1°. Best body text is #FFFFFF at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#516BB8
RGB	rgb(81, 107, 184)
HSL	hsl(225, 42%, 52%)
HSV	hsv(225, 56%, 72%)
CMYK	cmyk(56%, 41.8%, 0%, 27.8%)
CIE-LAB	lab(46.61, 13.49, -43.69)
CIE-LCH	lch(46.61, 45.73, 287.15°)
OKLab	oklab(54.45% -0.0042 -0.1241)
OKLCH	oklch(54.45% 0.124 268.1)
XYZ	xyz(17.2999, 15.7241, 47.4615)
Luminance	0.1573 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516BB8 #B89E51

analogous

#519FB8 #516BB8 #6A51B8

triadic

#516BB8 #B8516B #6BB851

tetradic

#516BB8 #B8519F #B89E51 #51B86A

square

#516BB8 #B8519F #B89E51 #51B86A

split-complementary

#516BB8 #B86A51 #9FB851

monochromatic

#293865 #3B5191 #516BB8 #7C90CA #A8B5DB

Accessibility & contrast

On white

5.07

#516BB8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.14

#516BB8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516BB8

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516BB8	#FFFFFF	#000000	##FFFFFF
##516BB8	1.00	5.07	4.14	5.07
#FFFFFF	5.07	1.00	21.00	1.00
#000000	4.14	21.00	1.00	21.00
##FFFFFF	5.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A73BB

Deuteranopia (green-blind)

#3E6AB6

Tritanopia (blue-blind)

#137C88

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #516bb8;
/* rgb */ color: rgb(81, 107, 184);
/* oklch */ color: oklch(54.4% 0.124 268.1);

Tailwind

colors: {
  custom: {
    50: '#8995ce',
    500: '#516bb8',
    950: '#000000',
  },
}

SCSS

$custom: #516bb8;
$custom-light: #8995ce;
$custom-dark: #000000;

JSON

{
  "hex": "#516bb8",
  "rgb": {
    "r": 81,
    "g": 107,
    "b": 184
  },
  "hsl": {
    "h": 224.854,
    "s": 42.041,
    "l": 51.961
  },
  "oklch": {
    "l": 0.5445,
    "c": 0.12418,
    "h": 268.1
  },
  "luminance": 0.15725
}

Semantic roles & 50–950 ramp

primary

#516BB8

secondary

#C9BE9C

accent

#B356D2

background

#F8F9FC

surface

#F0F1F9

border

#CBCBD2

text

#0C0D13

muted

#7D7E82

Preview Lab

Preview with #516BB8

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

Preview Lab → · Contrast checker → · Palette generator →