#516FB3#516FB3

#516FB3 is a mid, moderate blue. Relative luminance 0.164; OKLCH L 55.0% C 0.112 H 264.9°. Best body text is #FFFFFF at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#516FB3
RGB	rgb(81, 111, 179)
HSL	hsl(222, 39%, 51%)
HSV	hsv(222, 55%, 70%)
CMYK	cmyk(54.7%, 38%, 0%, 29.8%)
CIE-LAB	lab(47.46, 9.35, -39.45)
CIE-LCH	lch(47.46, 40.54, 283.34°)
OKLab	oklab(55.02% -0.0099 -0.1116)
OKLCH	oklch(55.02% 0.112 264.9)
XYZ	xyz(17.2117, 16.3716, 44.8921)
Luminance	0.1637 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516FB3 #B39551

analogous

#51A0B3 #516FB3 #6451B3

triadic

#516FB3 #B3516F #6FB351

tetradic

#516FB3 #B351A0 #B39551 #51B364

square

#516FB3 #B351A0 #B39551 #51B364

split-complementary

#516FB3 #B36451 #A0B351

monochromatic

#2A3A60 #3C548A #516FB3 #7C92C6 #A6B6D8

Accessibility & contrast

On white

4.91

#516FB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.27

#516FB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516FB3

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516FB3	#FFFFFF	#000000	##FFFFFF
##516FB3	1.00	4.91	4.27	4.91
#FFFFFF	4.91	1.00	21.00	1.00
#000000	4.27	21.00	1.00	21.00
##FFFFFF	4.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5375B6

Deuteranopia (green-blind)

#486CB2

Tritanopia (blue-blind)

#1A7E88

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #516fb3;
/* rgb */ color: rgb(81, 111, 179);
/* oklch */ color: oklch(55.0% 0.112 264.9);

Tailwind

colors: {
  custom: {
    50: '#8998ca',
    500: '#516fb3',
    950: '#000000',
  },
}

SCSS

$custom: #516fb3;
$custom-light: #8998ca;
$custom-dark: #000000;

JSON

{
  "hex": "#516fb3",
  "rgb": {
    "r": 81,
    "g": 111,
    "b": 179
  },
  "hsl": {
    "h": 221.633,
    "s": 39.2,
    "l": 50.98
  },
  "oklch": {
    "l": 0.55016,
    "c": 0.11208,
    "h": 264.9
  },
  "luminance": 0.16373
}

Semantic roles & 50–950 ramp

primary

#516FB3

secondary

#C6B89A

accent

#AB59CF

background

#F8F9FC

surface

#F0F2F8

border

#CBCCD1

text

#0C0D13

muted

#7D7E82

Preview Lab

Preview with #516FB3

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

Preview Lab → · Contrast checker → · Palette generator →