#6166E5#6166E5

#6166E5 is a mid, vivid blue. Relative luminance 0.177; OKLCH L 57.5% C 0.189 H 277.0°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#6166E5
RGB	rgb(97, 102, 229)
HSL	hsl(238, 72%, 64%)
HSV	hsv(238, 58%, 90%)
CMYK	cmyk(57.6%, 55.5%, 0%, 10.2%)
CIE-LAB	lab(49.13, 34.50, -65.33)
CIE-LCH	lch(49.13, 73.88, 297.84°)
OKLab	oklab(57.52% 0.0229 -0.1874)
OKLCH	oklch(57.52% 0.189 277)
XYZ	xyz(23.8195, 17.6995, 76.2747)
Luminance	0.1770 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6166E5 #E5E061

analogous

#61A8E5 #6166E5 #9E61E5

triadic

#6166E5 #E56166 #66E561

tetradic

#6166E5 #E561A8 #E5E061 #61E59E

square

#6166E5 #E561A8 #E5E061 #61E59E

split-complementary

#6166E5 #E59E61 #A8E561

monochromatic

#1D22AF #2C33DC #6166E5 #9699EE #CACCF6

Accessibility & contrast

On white

4.63

#6166E5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#6166E5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #6166E5

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6166E5	#FFFFFF	#000000	##FFFFFF
##6166E5	1.00	4.63	4.54	4.63
#FFFFFF	4.63	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#007AE9

Deuteranopia (green-blind)

#006FE2

Tritanopia (blue-blind)

#00849C

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #6166e5;
/* rgb */ color: rgb(97, 102, 229);
/* oklch */ color: oklch(57.5% 0.189 277.0);

Tailwind

colors: {
  custom: {
    50: '#9991ee',
    500: '#6166e5',
    950: '#000000',
  },
}

SCSS

$custom: #6166e5;
$custom-light: #9991ee;
$custom-dark: #000000;

JSON

{
  "hex": "#6166e5",
  "rgb": {
    "r": 97,
    "g": 102,
    "b": 229
  },
  "hsl": {
    "h": 237.727,
    "s": 71.739,
    "l": 63.922
  },
  "oklch": {
    "l": 0.57519,
    "c": 0.18878,
    "h": 277
  },
  "luminance": 0.17701
}

Semantic roles & 50–950 ramp

primary

#6166E5

secondary

#E8E6BA

accent

#CC12D4

background

#FAF8FE

surface

#F3F0FD

border

#CDCBD5

text

#0F0D16

muted

#7F7D84

Preview Lab

Preview with #6166E5

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

Preview Lab → · Contrast checker → · Palette generator →