#6166DF#6166DF

#6166DF is a mid, vivid blue. Relative luminance 0.174; OKLCH L 57.1% C 0.181 H 277.2°. Best body text is #FFFFFF at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#6166DF
RGB	rgb(97, 102, 223)
HSL	hsl(238, 66%, 63%)
HSV	hsv(238, 57%, 87%)
CMYK	cmyk(56.5%, 54.3%, 0%, 12.5%)
CIE-LAB	lab(48.72, 32.58, -62.60)
CIE-LCH	lch(48.72, 70.57, 297.50°)
OKLab	oklab(57.09% 0.0228 -0.1793)
OKLCH	oklch(57.09% 0.181 277.2)
XYZ	xyz(22.9962, 17.3702, 71.9387)
Luminance	0.1737 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6166DF #DFDA61

analogous

#61A5DF #6166DF #9B61DF

triadic

#6166DF #DF6166 #66DF61

tetradic

#6166DF #DF61A5 #DFDA61 #61DF9B

square

#6166DF #DF61A5 #DFDA61 #61DF9B

split-complementary

#6166DF #DF9B61 #A5DF61

monochromatic

#2126A4 #2E35D5 #6166DF #9497E9 #C7C9F4

Accessibility & contrast

On white

4.69

#6166DF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.47

#6166DF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6166DF

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6166DF	#FFFFFF	#000000	##FFFFFF
##6166DF	1.00	4.69	4.47	4.69
#FFFFFF	4.69	1.00	21.00	1.00
#000000	4.47	21.00	1.00	21.00
##FFFFFF	4.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1479E3

Deuteranopia (green-blind)

#006FDC

Tritanopia (blue-blind)

#168299

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #6166df;
/* rgb */ color: rgb(97, 102, 223);
/* oklch */ color: oklch(57.1% 0.181 277.2);

Tailwind

colors: {
  custom: {
    50: '#9891ea',
    500: '#6166df',
    950: '#000000',
  },
}

SCSS

$custom: #6166df;
$custom-light: #9891ea;
$custom-dark: #000000;

JSON

{
  "hex": "#6166df",
  "rgb": {
    "r": 97,
    "g": 102,
    "b": 223
  },
  "hsl": {
    "h": 237.619,
    "s": 66.316,
    "l": 62.745
  },
  "oklch": {
    "l": 0.57086,
    "c": 0.18078,
    "h": 277.2
  },
  "luminance": 0.17372
}

Semantic roles & 50–950 ramp

primary

#6166DF

secondary

#E5E3B7

accent

#C717CE

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0F0C16

muted

#7E7D84

Preview Lab

Preview with #6166DF

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

Preview Lab → · Contrast checker → · Palette generator →