#5166AB#5166AB

#5166AB is a mid, moderate blue. Relative luminance 0.142; OKLCH L 52.6% C 0.112 H 269.5°. Best body text is #FFFFFF at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#5166AB
RGB	rgb(81, 102, 171)
HSL	hsl(226, 36%, 49%)
HSV	hsv(226, 53%, 67%)
CMYK	cmyk(52.6%, 40.4%, 0%, 32.9%)
CIE-LAB	lab(44.51, 12.33, -39.45)
CIE-LCH	lch(44.51, 41.33, 287.36°)
OKLab	oklab(52.6% -0.001 -0.1117)
OKLCH	oklch(52.6% 0.112 269.5)
XYZ	xyz(15.4930, 14.1913, 40.4430)
Luminance	0.1419 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5166AB #AB9651

analogous

#5193AB #5166AB #6951AB

triadic

#5166AB #AB5166 #66AB51

tetradic

#5166AB #AB5193 #AB9651 #51AB69

square

#5166AB #AB5193 #AB9651 #51AB69

split-complementary

#5166AB #AB6951 #93AB51

monochromatic

#2A3458 #3D4D81 #5166AB #798AC0 #A3AED3

Accessibility & contrast

On white

5.47

#5166AB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.84

#5166AB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5166AB

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5166AB	#FFFFFF	#000000	##FFFFFF
##5166AB	1.00	5.47	3.84	5.47
#FFFFFF	5.47	1.00	21.00	1.00
#000000	3.84	21.00	1.00	21.00
##FFFFFF	5.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A6DAE

Deuteranopia (green-blind)

#4066A9

Tritanopia (blue-blind)

#277580

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #5166ab;
/* rgb */ color: rgb(81, 102, 171);
/* oklch */ color: oklch(52.6% 0.112 269.5);

Tailwind

colors: {
  custom: {
    50: '#8891c4',
    500: '#5166ab',
    950: '#000000',
  },
}

SCSS

$custom: #5166ab;
$custom-light: #8891c4;
$custom-dark: #000000;

JSON

{
  "hex": "#5166ab",
  "rgb": {
    "r": 81,
    "g": 102,
    "b": 171
  },
  "hsl": {
    "h": 226,
    "s": 35.714,
    "l": 49.412
  },
  "oklch": {
    "l": 0.52599,
    "c": 0.11172,
    "h": 269.5
  },
  "luminance": 0.14192
}

Semantic roles & 50–950 ramp

primary

#5166AB

secondary

#C1B797

accent

#B25CCC

background

#F8F8FC

surface

#F0F0F8

border

#CBCBD1

text

#0C0C13

muted

#7D7D82

Preview Lab

Preview with #5166AB

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

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