#6166B4#6166B4

#6166B4 is a mid, vivid blue. Relative luminance 0.153; OKLCH L 54.3% C 0.121 H 278.8°. Best body text is #FFFFFF at 5.16:1 contrast (WCAG AA passes).

Color values

HEX	#6166B4
RGB	rgb(97, 102, 180)
HSL	hsl(236, 36%, 54%)
HSV	hsv(236, 46%, 71%)
CMYK	cmyk(46.1%, 43.3%, 0%, 29.4%)
CIE-LAB	lab(46.09, 19.04, -42.12)
CIE-LCH	lch(46.09, 46.23, 294.32°)
OKLab	oklab(54.26% 0.0184 -0.1192)
OKLCH	oklch(54.26% 0.121 278.8)
XYZ	xyz(17.9169, 15.3385, 45.1877)
Luminance	0.1534 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6166B4 #B4AF61

analogous

#618FB4 #6166B4 #8661B4

triadic

#6166B4 #B46166 #66B461

tetradic

#6166B4 #B4618F #B4AF61 #61B486

square

#6166B4 #B4618F #B4AF61 #61B486

split-complementary

#6166B4 #B48661 #8FB461

monochromatic

#323569 #454A92 #6166B4 #8B8EC8 #B4B6DB

Accessibility & contrast

On white

5.16

#6166B4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.07

#6166B4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6166B4

5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6166B4	#FFFFFF	#000000	##FFFFFF
##6166B4	1.00	5.16	4.07	5.16
#FFFFFF	5.16	1.00	21.00	1.00
#000000	4.07	21.00	1.00	21.00
##FFFFFF	5.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4870B7

Deuteranopia (green-blind)

#426AB2

Tritanopia (blue-blind)

#447684

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #6166b4;
/* rgb */ color: rgb(97, 102, 180);
/* oklch */ color: oklch(54.3% 0.121 278.8);

Tailwind

colors: {
  custom: {
    50: '#9291cb',
    500: '#6166b4',
    950: '#000000',
  },
}

SCSS

$custom: #6166b4;
$custom-light: #9291cb;
$custom-dark: #000000;

JSON

{
  "hex": "#6166b4",
  "rgb": {
    "r": 97,
    "g": 102,
    "b": 180
  },
  "hsl": {
    "h": 236.386,
    "s": 35.622,
    "l": 54.314
  },
  "oklch": {
    "l": 0.54258,
    "c": 0.12061,
    "h": 278.8
  },
  "luminance": 0.15339
}

Semantic roles & 50–950 ramp

primary

#6166B4

secondary

#CAC8A7

accent

#C55CCC

background

#F9F8FC

surface

#F2F0F8

border

#CCCBD1

text

#0D0C13

muted

#7E7D82

Preview Lab

Preview with #6166B4

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

Preview Lab → · Contrast checker → · Palette generator →