#6166B8#6166B8

#6166B8 is a mid, vivid blue. Relative luminance 0.155; OKLCH L 54.5% C 0.126 H 278.7°. Best body text is #FFFFFF at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#6166B8
RGB	rgb(97, 102, 184)
HSL	hsl(237, 38%, 55%)
HSV	hsv(237, 47%, 72%)
CMYK	cmyk(47.3%, 44.6%, 0%, 27.8%)
CIE-LAB	lab(46.32, 20.27, -44.10)
CIE-LCH	lch(46.32, 48.53, 294.69°)
OKLab	oklab(54.5% 0.0191 -0.125)
OKLCH	oklch(54.5% 0.126 278.7)
XYZ	xyz(18.3302, 15.5039, 47.3648)
Luminance	0.1550 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6166B8 #B8B361

analogous

#6191B8 #6166B8 #8861B8

triadic

#6166B8 #B86166 #66B861

tetradic

#6166B8 #B86191 #B8B361 #61B888

square

#6166B8 #B86191 #B8B361 #61B888

split-complementary

#6166B8 #B88861 #91B861

monochromatic

#31356D #444998 #6166B8 #8B8FCB #B5B8DE

Accessibility & contrast

On white

5.12

#6166B8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.10

#6166B8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6166B8

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6166B8	#FFFFFF	#000000	##FFFFFF
##6166B8	1.00	5.12	4.10	5.12
#FFFFFF	5.12	1.00	21.00	1.00
#000000	4.10	21.00	1.00	21.00
##FFFFFF	5.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4571BB

Deuteranopia (green-blind)

#3F6AB6

Tritanopia (blue-blind)

#427786

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #6166b8;
/* rgb */ color: rgb(97, 102, 184);
/* oklch */ color: oklch(54.5% 0.126 278.7);

Tailwind

colors: {
  custom: {
    50: '#9391ce',
    500: '#6166b8',
    950: '#000000',
  },
}

SCSS

$custom: #6166b8;
$custom-light: #9391ce;
$custom-dark: #000000;

JSON

{
  "hex": "#6166b8",
  "rgb": {
    "r": 97,
    "g": 102,
    "b": 184
  },
  "hsl": {
    "h": 236.552,
    "s": 37.991,
    "l": 55.098
  },
  "oklch": {
    "l": 0.545,
    "c": 0.12643,
    "h": 278.7
  },
  "luminance": 0.15505
}

Semantic roles & 50–950 ramp

primary

#6166B8

secondary

#CDCBA8

accent

#C75ACE

background

#F9F8FC

surface

#F2F0F9

border

#CCCBD2

text

#0D0C13

muted

#7E7D82

Preview Lab

Preview with #6166B8

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

Preview Lab → · Contrast checker → · Palette generator →