#6166BC#6166BC

#6166BC is a mid, vivid blue. Relative luminance 0.157; OKLCH L 54.7% C 0.132 H 278.6°. Best body text is #FFFFFF at 5.08:1 contrast (WCAG AA passes).

Color values

HEX	#6166BC
RGB	rgb(97, 102, 188)
HSL	hsl(237, 40%, 56%)
HSV	hsv(237, 48%, 74%)
CMYK	cmyk(48.4%, 45.7%, 0%, 26.3%)
CIE-LAB	lab(46.54, 21.51, -46.06)
CIE-LCH	lch(46.54, 50.83, 295.03°)
OKLab	oklab(54.75% 0.0197 -0.1307)
OKLCH	oklch(54.75% 0.132 278.6)
XYZ	xyz(18.7555, 15.6739, 49.6043)
Luminance	0.1568 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6166BC #BCB761

analogous

#6193BC #6166BC #8961BC

triadic

#6166BC #BC6166 #66BC61

tetradic

#6166BC #BC6193 #BCB761 #61BC89

square

#6166BC #BC6193 #BCB761 #61BC89

split-complementary

#6166BC #BC8961 #93BC61

monochromatic

#303472 #43489D #6166BC #8C90CE #B7B9E0

Accessibility & contrast

On white

5.08

#6166BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.14

#6166BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6166BC

5.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6166BC	#FFFFFF	#000000	##FFFFFF
##6166BC	1.00	5.08	4.14	5.08
#FFFFFF	5.08	1.00	21.00	1.00
#000000	4.14	21.00	1.00	21.00
##FFFFFF	5.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4272BF

Deuteranopia (green-blind)

#3B6BBA

Tritanopia (blue-blind)

#3F7888

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #6166bc;
/* rgb */ color: rgb(97, 102, 188);
/* oklch */ color: oklch(54.7% 0.132 278.6);

Tailwind

colors: {
  custom: {
    50: '#9391d1',
    500: '#6166bc',
    950: '#000000',
  },
}

SCSS

$custom: #6166bc;
$custom-light: #9391d1;
$custom-dark: #000000;

JSON

{
  "hex": "#6166bc",
  "rgb": {
    "r": 97,
    "g": 102,
    "b": 188
  },
  "hsl": {
    "h": 236.703,
    "s": 40.444,
    "l": 55.882
  },
  "oklch": {
    "l": 0.54746,
    "c": 0.13219,
    "h": 278.6
  },
  "luminance": 0.15675
}

Semantic roles & 50–950 ramp

primary

#6166BC

secondary

#CFCDAA

accent

#CA57D0

background

#F9F8FC

surface

#F2F0F9

border

#CCCBD2

text

#0D0C14

muted

#7E7D82

Preview Lab

Preview with #6166BC

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

Preview Lab → · Contrast checker → · Palette generator →