#6166B9#6166B9

#6166B9 is a mid, vivid blue. Relative luminance 0.155; OKLCH L 54.6% C 0.128 H 278.7°. Best body text is #FFFFFF at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#6166B9
RGB	rgb(97, 102, 185)
HSL	hsl(237, 39%, 55%)
HSV	hsv(237, 48%, 73%)
CMYK	cmyk(47.6%, 44.9%, 0%, 27.5%)
CIE-LAB	lab(46.37, 20.58, -44.59)
CIE-LCH	lch(46.37, 49.11, 294.77°)
OKLab	oklab(54.56% 0.0193 -0.1264)
OKLCH	oklch(54.56% 0.128 278.7)
XYZ	xyz(18.4354, 15.5459, 47.9188)
Luminance	0.1555 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6166B9 #B9B461

analogous

#6192B9 #6166B9 #8861B9

triadic

#6166B9 #B96166 #66B961

tetradic

#6166B9 #B96192 #B9B461 #61B988

square

#6166B9 #B96192 #B9B461 #61B988

split-complementary

#6166B9 #B98861 #92B961

monochromatic

#31356F #444999 #6166B9 #8B8FCC #B6B8DF

Accessibility & contrast

On white

5.11

#6166B9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.11

#6166B9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6166B9

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6166B9	#FFFFFF	#000000	##FFFFFF
##6166B9	1.00	5.11	4.11	5.11
#FFFFFF	5.11	1.00	21.00	1.00
#000000	4.11	21.00	1.00	21.00
##FFFFFF	5.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4571BC

Deuteranopia (green-blind)

#3E6BB7

Tritanopia (blue-blind)

#417786

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #6166b9;
/* rgb */ color: rgb(97, 102, 185);
/* oklch */ color: oklch(54.6% 0.128 278.7);

Tailwind

colors: {
  custom: {
    50: '#9391ce',
    500: '#6166b9',
    950: '#000000',
  },
}

SCSS

$custom: #6166b9;
$custom-light: #9391ce;
$custom-dark: #000000;

JSON

{
  "hex": "#6166b9",
  "rgb": {
    "r": 97,
    "g": 102,
    "b": 185
  },
  "hsl": {
    "h": 236.591,
    "s": 38.596,
    "l": 55.294
  },
  "oklch": {
    "l": 0.54561,
    "c": 0.12788,
    "h": 278.7
  },
  "luminance": 0.15547
}

Semantic roles & 50–950 ramp

primary

#6166B9

secondary

#CDCBA9

accent

#C859CF

background

#F9F8FC

surface

#F2F0F9

border

#CCCBD2

text

#0D0C14

muted

#7E7D82

Preview Lab

Preview with #6166B9

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

Preview Lab → · Contrast checker → · Palette generator →