#5166AC#5166AC

#5166AC is a mid, moderate blue. Relative luminance 0.142; OKLCH L 52.7% C 0.113 H 269.6°. Best body text is #FFFFFF at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#5166AC
RGB	rgb(81, 102, 172)
HSL	hsl(226, 36%, 50%)
HSV	hsv(226, 53%, 67%)
CMYK	cmyk(52.9%, 40.7%, 0%, 32.5%)
CIE-LAB	lab(44.56, 12.65, -39.95)
CIE-LCH	lch(44.56, 41.90, 287.58°)
OKLab	oklab(52.66% -0.0008 -0.1132)
OKLCH	oklch(52.66% 0.113 269.6)
XYZ	xyz(15.5887, 14.2296, 40.9469)
Luminance	0.1423 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5166AC #AC9751

analogous

#5194AC #5166AC #6A51AC

triadic

#5166AC #AC5166 #66AC51

tetradic

#5166AC #AC5194 #AC9751 #51AC6A

square

#5166AC #AC5194 #AC9751 #51AC6A

split-complementary

#5166AC #AC6A51 #94AC51

monochromatic

#2A3559 #3D4D82 #5166AC #7A8AC0 #A3AFD4

Accessibility & contrast

On white

5.46

#5166AC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.85

#5166AC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5166AC

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5166AC	#FFFFFF	#000000	##FFFFFF
##5166AC	1.00	5.46	3.85	5.46
#FFFFFF	5.46	1.00	21.00	1.00
#000000	3.85	21.00	1.00	21.00
##FFFFFF	5.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A6EAF

Deuteranopia (green-blind)

#4066AA

Tritanopia (blue-blind)

#267580

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #5166ac;
/* rgb */ color: rgb(81, 102, 172);
/* oklch */ color: oklch(52.7% 0.113 269.6);

Tailwind

colors: {
  custom: {
    50: '#8891c5',
    500: '#5166ac',
    950: '#000000',
  },
}

SCSS

$custom: #5166ac;
$custom-light: #8891c5;
$custom-dark: #000000;

JSON

{
  "hex": "#5166ac",
  "rgb": {
    "r": 81,
    "g": 102,
    "b": 172
  },
  "hsl": {
    "h": 226.154,
    "s": 35.968,
    "l": 49.608
  },
  "oklch": {
    "l": 0.52659,
    "c": 0.11318,
    "h": 269.6
  },
  "luminance": 0.14231
}

Semantic roles & 50–950 ramp

primary

#5166AC

secondary

#C1B898

accent

#B25CCC

background

#F8F8FC

surface

#F0F0F8

border

#CBCBD1

text

#0C0C13

muted

#7D7D82

Preview Lab

Preview with #5166AC

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

Preview Lab → · Contrast checker → · Palette generator →