#5166AF#5166AF

#5166AF is a mid, moderate blue. Relative luminance 0.143; OKLCH L 52.8% C 0.118 H 269.9°. Best body text is #FFFFFF at 5.43:1 contrast (WCAG AA passes).

Color values

HEX	#5166AF
RGB	rgb(81, 102, 175)
HSL	hsl(227, 37%, 50%)
HSV	hsv(227, 54%, 69%)
CMYK	cmyk(53.7%, 41.7%, 0%, 31.4%)
CIE-LAB	lab(44.73, 13.64, -41.44)
CIE-LCH	lch(44.73, 43.63, 288.22°)
OKLab	oklab(52.84% -0.0002 -0.1176)
OKLCH	oklch(52.84% 0.118 269.9)
XYZ	xyz(15.8800, 14.3461, 42.4814)
Luminance	0.1435 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5166AF #AF9A51

analogous

#5195AF #5166AF #6B51AF

triadic

#5166AF #AF5166 #66AF51

tetradic

#5166AF #AF5195 #AF9A51 #51AF6B

square

#5166AF #AF5195 #AF9A51 #51AF6B

split-complementary

#5166AF #AF6B51 #95AF51

monochromatic

#2A355C #3D4D85 #5166AF #7B8BC2 #A5B0D6

Accessibility & contrast

On white

5.43

#5166AF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.87

#5166AF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5166AF

5.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5166AF	#FFFFFF	#000000	##FFFFFF
##5166AF	1.00	5.43	3.87	5.43
#FFFFFF	5.43	1.00	21.00	1.00
#000000	3.87	21.00	1.00	21.00
##FFFFFF	5.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#486EB2

Deuteranopia (green-blind)

#3D66AD

Tritanopia (blue-blind)

#237682

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #5166af;
/* rgb */ color: rgb(81, 102, 175);
/* oklch */ color: oklch(52.8% 0.118 269.9);

Tailwind

colors: {
  custom: {
    50: '#8891c7',
    500: '#5166af',
    950: '#000000',
  },
}

SCSS

$custom: #5166af;
$custom-light: #8891c7;
$custom-dark: #000000;

JSON

{
  "hex": "#5166af",
  "rgb": {
    "r": 81,
    "g": 102,
    "b": 175
  },
  "hsl": {
    "h": 226.596,
    "s": 37.008,
    "l": 50.196
  },
  "oklch": {
    "l": 0.52839,
    "c": 0.11756,
    "h": 269.9
  },
  "luminance": 0.14347
}

Semantic roles & 50–950 ramp

primary

#5166AF

secondary

#C3BA99

accent

#B35BCD

background

#F8F8FC

surface

#F0F0F8

border

#CBCBD1

text

#0C0C13

muted

#7D7D82

Preview Lab

Preview with #5166AF

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

Preview Lab → · Contrast checker → · Palette generator →