#516EB3#516EB3

#516EB3 is a mid, moderate blue. Relative luminance 0.162; OKLCH L 54.8% C 0.113 H 265.6°. Best body text is #FFFFFF at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#516EB3
RGB	rgb(81, 110, 179)
HSL	hsl(222, 39%, 51%)
HSV	hsv(222, 55%, 70%)
CMYK	cmyk(54.7%, 38.5%, 0%, 29.8%)
CIE-LAB	lab(47.18, 9.97, -39.89)
CIE-LCH	lch(47.18, 41.12, 284.03°)
OKLab	oklab(54.8% -0.0087 -0.1129)
OKLCH	oklch(54.8% 0.113 265.6)
XYZ	xyz(17.1032, 16.1546, 44.8560)
Luminance	0.1616 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516EB3 #B39651

analogous

#519FB3 #516EB3 #6551B3

triadic

#516EB3 #B3516E #6EB351

tetradic

#516EB3 #B3519F #B39651 #51B365

square

#516EB3 #B3519F #B39651 #51B365

split-complementary

#516EB3 #B36551 #9FB351

monochromatic

#2A3A60 #3C538A #516EB3 #7C91C6 #A6B5D8

Accessibility & contrast

On white

4.96

#516EB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.23

#516EB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516EB3

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516EB3	#FFFFFF	#000000	##FFFFFF
##516EB3	1.00	4.96	4.23	4.96
#FFFFFF	4.96	1.00	21.00	1.00
#000000	4.23	21.00	1.00	21.00
##FFFFFF	4.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5275B6

Deuteranopia (green-blind)

#466CB2

Tritanopia (blue-blind)

#1B7D88

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #516eb3;
/* rgb */ color: rgb(81, 110, 179);
/* oklch */ color: oklch(54.8% 0.113 265.6);

Tailwind

colors: {
  custom: {
    50: '#8997ca',
    500: '#516eb3',
    950: '#000000',
  },
}

SCSS

$custom: #516eb3;
$custom-light: #8997ca;
$custom-dark: #000000;

JSON

{
  "hex": "#516eb3",
  "rgb": {
    "r": 81,
    "g": 110,
    "b": 179
  },
  "hsl": {
    "h": 222.245,
    "s": 39.2,
    "l": 50.98
  },
  "oklch": {
    "l": 0.54799,
    "c": 0.11328,
    "h": 265.6
  },
  "luminance": 0.16156
}

Semantic roles & 50–950 ramp

primary

#516EB3

secondary

#C6B99A

accent

#AC59CF

background

#F8F9FC

surface

#F0F2F8

border

#CBCCD1

text

#0C0D13

muted

#7D7E82

Preview Lab

Preview with #516EB3

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

Preview Lab → · Contrast checker → · Palette generator →