#5166AD#5166AD

#5166AD is a mid, moderate blue. Relative luminance 0.143; OKLCH L 52.7% C 0.115 H 269.7°. Best body text is #FFFFFF at 5.45:1 contrast (WCAG AA passes).

Color values

HEX	#5166AD
RGB	rgb(81, 102, 173)
HSL	hsl(226, 36%, 50%)
HSV	hsv(226, 53%, 68%)
CMYK	cmyk(53.2%, 41%, 0%, 32.2%)
CIE-LAB	lab(44.62, 12.98, -40.45)
CIE-LCH	lch(44.62, 42.48, 287.80°)
OKLab	oklab(52.72% -0.0005 -0.1146)
OKLCH	oklch(52.72% 0.115 269.7)
XYZ	xyz(15.6851, 14.2681, 41.4546)
Luminance	0.1427 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5166AD #AD9851

analogous

#5194AD #5166AD #6A51AD

triadic

#5166AD #AD5166 #66AD51

tetradic

#5166AD #AD5194 #AD9851 #51AD6A

square

#5166AD #AD5194 #AD9851 #51AD6A

split-complementary

#5166AD #AD6A51 #94AD51

monochromatic

#2A355A #3D4D83 #5166AD #7A8AC1 #A4AFD4

Accessibility & contrast

On white

5.45

#5166AD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.85

#5166AD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5166AD

5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5166AD	#FFFFFF	#000000	##FFFFFF
##5166AD	1.00	5.45	3.85	5.45
#FFFFFF	5.45	1.00	21.00	1.00
#000000	3.85	21.00	1.00	21.00
##FFFFFF	5.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#496EB0

Deuteranopia (green-blind)

#3F66AB

Tritanopia (blue-blind)

#257581

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #5166ad;
/* rgb */ color: rgb(81, 102, 173);
/* oklch */ color: oklch(52.7% 0.115 269.7);

Tailwind

colors: {
  custom: {
    50: '#8891c6',
    500: '#5166ad',
    950: '#000000',
  },
}

SCSS

$custom: #5166ad;
$custom-light: #8891c6;
$custom-dark: #000000;

JSON

{
  "hex": "#5166ad",
  "rgb": {
    "r": 81,
    "g": 102,
    "b": 173
  },
  "hsl": {
    "h": 226.304,
    "s": 36.22,
    "l": 49.804
  },
  "oklch": {
    "l": 0.52719,
    "c": 0.11464,
    "h": 269.7
  },
  "luminance": 0.14269
}

Semantic roles & 50–950 ramp

primary

#5166AD

secondary

#C2B898

accent

#B35CCC

background

#F8F8FC

surface

#F0F0F8

border

#CBCBD1

text

#0C0C13

muted

#7D7D82

Preview Lab

Preview with #5166AD

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

Preview Lab → · Contrast checker → · Palette generator →