#666AF6#666AF6

#666AF6 is a mid, highly saturated blue. Relative luminance 0.198; OKLCH L 59.8% C 0.205 H 277.0°. Best body text is #000000 at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#666AF6
RGB	rgb(102, 106, 246)
HSL	hsl(238, 89%, 68%)
HSV	hsv(238, 59%, 96%)
CMYK	cmyk(58.5%, 56.9%, 0%, 3.5%)
CIE-LAB	lab(51.59, 38.40, -70.85)
CIE-LCH	lch(51.59, 80.58, 298.46°)
OKLab	oklab(59.81% 0.025 -0.2034)
OKLCH	oklch(59.81% 0.205 277)
XYZ	xyz(27.2627, 19.7846, 89.5531)
Luminance	0.1979 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666AF6 #F6F266

analogous

#66B2F6 #666AF6 #AA66F6

triadic

#666AF6 #F6666A #6AF666

tetradic

#666AF6 #F666B2 #F6F266 #66F6AA

square

#666AF6 #F666B2 #F6F266 #66F6AA

split-complementary

#666AF6 #F6AA66 #B2F666

monochromatic

#0D12D5 #2C32F3 #666AF6 #A0A2F9 #DADBFD

Accessibility & contrast

On white

4.24

#666AF6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.96

#666AF6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #666AF6

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666AF6	#FFFFFF	#000000	##000000
##666AF6	1.00	4.24	4.96	4.96
#FFFFFF	4.24	1.00	21.00	21.00
#000000	4.96	21.00	1.00	1.00
##000000	4.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#0081FB

Deuteranopia (green-blind)

#0075F3

Tritanopia (blue-blind)

#008BA6

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #666af6;
/* rgb */ color: rgb(102, 106, 246);
/* oklch */ color: oklch(59.8% 0.205 277.0);

Tailwind

colors: {
  custom: {
    50: '#9e94fa',
    500: '#666af6',
    950: '#000000',
  },
}

SCSS

$custom: #666af6;
$custom-light: #9e94fa;
$custom-dark: #000000;

JSON

{
  "hex": "#666af6",
  "rgb": {
    "r": 102,
    "g": 106,
    "b": 246
  },
  "hsl": {
    "h": 238.333,
    "s": 88.889,
    "l": 68.235
  },
  "oklch": {
    "l": 0.59808,
    "c": 0.20497,
    "h": 277
  },
  "luminance": 0.19787
}

Semantic roles & 50–950 ramp

primary

#666AF6

secondary

#F2F1C6

accent

#DF00E6

background

#FAF9FF

surface

#F4F1FF

border

#CECBD7

text

#100D17

muted

#7F7E85

Preview Lab

Preview with #666AF6

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

Preview Lab → · Contrast checker → · Palette generator →