#6166DD#6166DD

#6166DD is a mid, vivid blue. Relative luminance 0.173; OKLCH L 56.9% C 0.178 H 277.3°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#6166DD
RGB	rgb(97, 102, 221)
HSL	hsl(238, 65%, 62%)
HSV	hsv(238, 56%, 87%)
CMYK	cmyk(56.1%, 53.8%, 0%, 13.3%)
CIE-LAB	lab(48.59, 31.94, -61.68)
CIE-LCH	lch(48.59, 69.46, 297.38°)
OKLab	oklab(56.94% 0.0227 -0.1766)
OKLCH	oklch(56.94% 0.178 277.3)
XYZ	xyz(22.7281, 17.2630, 70.5270)
Luminance	0.1726 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6166DD #DDD861

analogous

#61A4DD #6166DD #9A61DD

triadic

#6166DD #DD6166 #66DD61

tetradic

#6166DD #DD61A4 #DDD861 #61DD9A

square

#6166DD #DD61A4 #DDD861 #61DD9A

split-complementary

#6166DD #DD9A61 #A4DD61

monochromatic

#2328A1 #2F35D2 #6166DD #9397E8 #C6C8F3

Accessibility & contrast

On white

4.72

#6166DD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#6166DD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6166DD

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6166DD	#FFFFFF	#000000	##FFFFFF
##6166DD	1.00	4.72	4.45	4.72
#FFFFFF	4.72	1.00	21.00	1.00
#000000	4.45	21.00	1.00	21.00
##FFFFFF	4.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1979E1

Deuteranopia (green-blind)

#006EDB

Tritanopia (blue-blind)

#1A8198

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #6166dd;
/* rgb */ color: rgb(97, 102, 221);
/* oklch */ color: oklch(56.9% 0.178 277.3);

Tailwind

colors: {
  custom: {
    50: '#9891e8',
    500: '#6166dd',
    950: '#000000',
  },
}

SCSS

$custom: #6166dd;
$custom-light: #9891e8;
$custom-dark: #000000;

JSON

{
  "hex": "#6166dd",
  "rgb": {
    "r": 97,
    "g": 102,
    "b": 221
  },
  "hsl": {
    "h": 237.581,
    "s": 64.583,
    "l": 62.353
  },
  "oklch": {
    "l": 0.56944,
    "c": 0.1781,
    "h": 277.3
  },
  "luminance": 0.17265
}

Semantic roles & 50–950 ramp

primary

#6166DD

secondary

#E4E2B6

accent

#C519CC

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0F0C16

muted

#7E7D84

Preview Lab

Preview with #6166DD

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

Preview Lab → · Contrast checker → · Palette generator →