#5166AA#5166AA

#5166AA is a mid, moderate blue. Relative luminance 0.142; OKLCH L 52.5% C 0.110 H 269.4°. Best body text is #FFFFFF at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#5166AA
RGB	rgb(81, 102, 170)
HSL	hsl(226, 35%, 49%)
HSV	hsv(226, 52%, 67%)
CMYK	cmyk(52.4%, 40%, 0%, 33.3%)
CIE-LAB	lab(44.45, 12.00, -38.94)
CIE-LCH	lch(44.45, 40.75, 287.13°)
OKLab	oklab(52.54% -0.0012 -0.1102)
OKLCH	oklch(52.54% 0.11 269.4)
XYZ	xyz(15.3980, 14.1533, 39.9429)
Luminance	0.1415 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5166AA #AA9551

analogous

#5193AA #5166AA #6951AA

triadic

#5166AA #AA5166 #66AA51

tetradic

#5166AA #AA5193 #AA9551 #51AA69

square

#5166AA #AA5193 #AA9551 #51AA69

split-complementary

#5166AA #AA6951 #93AA51

monochromatic

#2A3457 #3D4D81 #5166AA #798ABF #A2AED3

Accessibility & contrast

On white

5.48

#5166AA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.83

#5166AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5166AA

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5166AA	#FFFFFF	#000000	##FFFFFF
##5166AA	1.00	5.48	3.83	5.48
#FFFFFF	5.48	1.00	21.00	1.00
#000000	3.83	21.00	1.00	21.00
##FFFFFF	5.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B6DAD

Deuteranopia (green-blind)

#4165A9

Tritanopia (blue-blind)

#287580

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #5166aa;
/* rgb */ color: rgb(81, 102, 170);
/* oklch */ color: oklch(52.5% 0.110 269.4);

Tailwind

colors: {
  custom: {
    50: '#8891c3',
    500: '#5166aa',
    950: '#000000',
  },
}

SCSS

$custom: #5166aa;
$custom-light: #8891c3;
$custom-dark: #000000;

JSON

{
  "hex": "#5166aa",
  "rgb": {
    "r": 81,
    "g": 102,
    "b": 170
  },
  "hsl": {
    "h": 225.843,
    "s": 35.458,
    "l": 49.216
  },
  "oklch": {
    "l": 0.5254,
    "c": 0.11026,
    "h": 269.4
  },
  "luminance": 0.14154
}

Semantic roles & 50–950 ramp

primary

#5166AA

secondary

#C0B697

accent

#B15CCB

background

#F8F8FC

surface

#F0F0F8

border

#CBCBD1

text

#0C0C12

muted

#7D7D81

Preview Lab

Preview with #5166AA

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

Preview Lab → · Contrast checker → · Palette generator →