#666AA2#666AA2

#666AA2 is a mid, moderate blue. Relative luminance 0.157; OKLCH L 54.5% C 0.087 H 280.0°. Best body text is #FFFFFF at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#666AA2
RGB	rgb(102, 106, 162)
HSL	hsl(236, 24%, 52%)
HSV	hsv(236, 37%, 64%)
CMYK	cmyk(37%, 34.6%, 0%, 36.5%)
CIE-LAB	lab(46.63, 12.59, -30.70)
CIE-LCH	lch(46.63, 33.19, 292.29°)
OKLab	oklab(54.47% 0.0151 -0.0858)
OKLCH	oklch(54.47% 0.087 280)
XYZ	xyz(17.1533, 15.7409, 36.3099)
Luminance	0.1574 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666AA2 #A29E66

analogous

#6688A2 #666AA2 #8066A2

triadic

#666AA2 #A2666A #6AA266

tetradic

#666AA2 #A26688 #A29E66 #66A280

square

#666AA2 #A26688 #A29E66 #66A280

split-complementary

#666AA2 #A28066 #88A266

monochromatic

#363858 #4D507E #666AA2 #8C8FB9 #B2B4D0

Accessibility & contrast

On white

5.06

#666AA2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.15

#666AA2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666AA2

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666AA2	#FFFFFF	#000000	##FFFFFF
##666AA2	1.00	5.06	4.15	5.06
#FFFFFF	5.06	1.00	21.00	1.00
#000000	4.15	21.00	1.00	21.00
##FFFFFF	5.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5871A4

Deuteranopia (green-blind)

#556CA1

Tritanopia (blue-blind)

#55757E

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #666aa2;
/* rgb */ color: rgb(102, 106, 162);
/* oklch */ color: oklch(54.5% 0.087 280.0);

Tailwind

colors: {
  custom: {
    50: '#9494be',
    500: '#666aa2',
    950: '#000000',
  },
}

SCSS

$custom: #666aa2;
$custom-light: #9494be;
$custom-dark: #000000;

JSON

{
  "hex": "#666aa2",
  "rgb": {
    "r": 102,
    "g": 106,
    "b": 162
  },
  "hsl": {
    "h": 236,
    "s": 24.39,
    "l": 51.765
  },
  "oklch": {
    "l": 0.54466,
    "c": 0.08715,
    "h": 280
  },
  "luminance": 0.15741
}

Semantic roles & 50–950 ramp

primary

#666AA2

secondary

#BFBDA5

accent

#BB67C1

background

#F9F9FB

surface

#F2F1F6

border

#CCCBD0

text

#0D0D12

muted

#7E7E81

Preview Lab

Preview with #666AA2

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

Preview Lab → · Contrast checker → · Palette generator →