#6166E4#6166E4

#6166E4 is a mid, vivid blue. Relative luminance 0.176; OKLCH L 57.4% C 0.187 H 277.0°. Best body text is #FFFFFF at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#6166E4
RGB	rgb(97, 102, 228)
HSL	hsl(238, 71%, 64%)
HSV	hsv(238, 57%, 89%)
CMYK	cmyk(57.5%, 55.3%, 0%, 10.6%)
CIE-LAB	lab(49.06, 34.18, -64.88)
CIE-LCH	lch(49.06, 73.33, 297.78°)
OKLab	oklab(57.45% 0.0229 -0.186)
OKLCH	oklch(57.45% 0.187 277)
XYZ	xyz(23.6802, 17.6439, 75.5415)
Luminance	0.1765 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6166E4 #E4DF61

analogous

#61A7E4 #6166E4 #9D61E4

triadic

#6166E4 #E46166 #66E461

tetradic

#6166E4 #E461A7 #E4DF61 #61E49D

square

#6166E4 #E461A7 #E4DF61 #61E49D

split-complementary

#6166E4 #E49D61 #A7E461

monochromatic

#1E23AD #2D33DB #6166E4 #9599ED #CACBF6

Accessibility & contrast

On white

4.64

#6166E4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.53

#6166E4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #6166E4

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6166E4	#FFFFFF	#000000	##FFFFFF
##6166E4	1.00	4.64	4.53	4.64
#FFFFFF	4.64	1.00	21.00	1.00
#000000	4.53	21.00	1.00	21.00
##FFFFFF	4.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#007AE8

Deuteranopia (green-blind)

#006FE1

Tritanopia (blue-blind)

#04839B

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #6166e4;
/* rgb */ color: rgb(97, 102, 228);
/* oklch */ color: oklch(57.4% 0.187 277.0);

Tailwind

colors: {
  custom: {
    50: '#9991ed',
    500: '#6166e4',
    950: '#000000',
  },
}

SCSS

$custom: #6166e4;
$custom-light: #9991ed;
$custom-dark: #000000;

JSON

{
  "hex": "#6166e4",
  "rgb": {
    "r": 97,
    "g": 102,
    "b": 228
  },
  "hsl": {
    "h": 237.71,
    "s": 70.811,
    "l": 63.725
  },
  "oklch": {
    "l": 0.57446,
    "c": 0.18745,
    "h": 277
  },
  "luminance": 0.17646
}

Semantic roles & 50–950 ramp

primary

#6166E4

secondary

#E7E6B9

accent

#CB13D3

background

#FAF8FE

surface

#F3F0FD

border

#CDCBD5

text

#0F0D16

muted

#7F7D84

Preview Lab

Preview with #6166E4

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

Preview Lab → · Contrast checker → · Palette generator →