#666AF5#666AF5

#666AF5 is a mid, highly saturated blue. Relative luminance 0.197; OKLCH L 59.7% C 0.204 H 277.0°. Best body text is #000000 at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#666AF5
RGB	rgb(102, 106, 245)
HSL	hsl(238, 88%, 68%)
HSV	hsv(238, 58%, 96%)
CMYK	cmyk(58.4%, 56.7%, 0%, 3.9%)
CIE-LAB	lab(51.52, 38.08, -70.40)
CIE-LCH	lch(51.52, 80.04, 298.41°)
OKLab	oklab(59.73% 0.025 -0.2021)
OKLCH	oklch(59.73% 0.204 277)
XYZ	xyz(27.1097, 19.7234, 88.7469)
Luminance	0.1973 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666AF5 #F5F166

analogous

#66B1F5 #666AF5 #AA66F5

triadic

#666AF5 #F5666A #6AF566

tetradic

#666AF5 #F566B1 #F5F166 #66F5AA

square

#666AF5 #F566B1 #F5F166 #66F5AA

split-complementary

#666AF5 #F5AA66 #B1F566

monochromatic

#0E13D3 #2D32F1 #666AF5 #9FA2F9 #D9DAFD

Accessibility & contrast

On white

4.25

#666AF5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.95

#666AF5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #666AF5

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666AF5	#FFFFFF	#000000	##000000
##666AF5	1.00	4.25	4.95	4.95
#FFFFFF	4.25	1.00	21.00	21.00
#000000	4.95	21.00	1.00	1.00
##000000	4.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#0081FA

Deuteranopia (green-blind)

#0075F2

Tritanopia (blue-blind)

#008BA5

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #666af5;
/* rgb */ color: rgb(102, 106, 245);
/* oklch */ color: oklch(59.7% 0.204 277.0);

Tailwind

colors: {
  custom: {
    50: '#9e94f9',
    500: '#666af5',
    950: '#000000',
  },
}

SCSS

$custom: #666af5;
$custom-light: #9e94f9;
$custom-dark: #000000;

JSON

{
  "hex": "#666af5",
  "rgb": {
    "r": 102,
    "g": 106,
    "b": 245
  },
  "hsl": {
    "h": 238.322,
    "s": 87.73,
    "l": 68.039
  },
  "oklch": {
    "l": 0.59734,
    "c": 0.20367,
    "h": 277
  },
  "luminance": 0.19725
}

Semantic roles & 50–950 ramp

primary

#666AF5

secondary

#F1F0C6

accent

#DE01E4

background

#FAF9FF

surface

#F4F1FF

border

#CECBD7

text

#100D17

muted

#7F7E85

Preview Lab

Preview with #666AF5

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

Preview Lab → · Contrast checker → · Palette generator →