#5166A0#5166A0

#5166A0 is a mid, moderate blue. Relative luminance 0.138; OKLCH L 52.0% C 0.096 H 267.9°. Best body text is #FFFFFF at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#5166A0
RGB	rgb(81, 102, 160)
HSL	hsl(224, 33%, 47%)
HSV	hsv(224, 49%, 63%)
CMYK	cmyk(49.4%, 36.2%, 0%, 37.3%)
CIE-LAB	lab(43.93, 8.78, -33.87)
CIE-LCH	lch(43.93, 34.99, 284.52°)
OKLab	oklab(51.97% -0.0035 -0.0954)
OKLCH	oklch(51.97% 0.096 267.9)
XYZ	xyz(14.4878, 13.7892, 35.1491)
Luminance	0.1379 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5166A0 #A08B51

analogous

#518DA0 #5166A0 #6451A0

triadic

#5166A0 #A05166 #66A051

tetradic

#5166A0 #A0518D #A08B51 #51A064

square

#5166A0 #A0518D #A08B51 #51A064

split-complementary

#5166A0 #A06451 #8DA051

monochromatic

#28324F #3C4C77 #5166A0 #7587B9 #9EAACE

Accessibility & contrast

On white

5.59

#5166A0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.76

#5166A0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5166A0

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5166A0	#FFFFFF	#000000	##FFFFFF
##5166A0	1.00	5.59	3.76	5.59
#FFFFFF	5.59	1.00	21.00	1.00
#000000	3.76	21.00	1.00	21.00
##FFFFFF	5.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#506CA2

Deuteranopia (green-blind)

#48659F

Tritanopia (blue-blind)

#31727B

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #5166a0;
/* rgb */ color: rgb(81, 102, 160);
/* oklch */ color: oklch(52.0% 0.096 267.9);

Tailwind

colors: {
  custom: {
    50: '#8691bc',
    500: '#5166a0',
    950: '#000000',
  },
}

SCSS

$custom: #5166a0;
$custom-light: #8691bc;
$custom-dark: #000000;

JSON

{
  "hex": "#5166a0",
  "rgb": {
    "r": 81,
    "g": 102,
    "b": 160
  },
  "hsl": {
    "h": 224.051,
    "s": 32.78,
    "l": 47.255
  },
  "oklch": {
    "l": 0.51966,
    "c": 0.09551,
    "h": 267.9
  },
  "luminance": 0.1379
}

Semantic roles & 50–950 ramp

primary

#5166A0

secondary

#BBB092

accent

#AD5FC9

background

#F8F8FB

surface

#F0F0F6

border

#CBCBD0

text

#0B0C12

muted

#7C7D81

Preview Lab

Preview with #5166A0

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

Preview Lab → · Contrast checker → · Palette generator →