#666CA2#666CA2

#666CA2 is a mid, moderate blue. Relative luminance 0.162; OKLCH L 54.9% C 0.084 H 278.4°. Best body text is #FFFFFF at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#666CA2
RGB	rgb(102, 108, 162)
HSL	hsl(234, 24%, 52%)
HSV	hsv(234, 37%, 64%)
CMYK	cmyk(37%, 33.3%, 0%, 36.5%)
CIE-LAB	lab(47.18, 11.37, -29.85)
CIE-LCH	lch(47.18, 31.94, 290.85°)
OKLab	oklab(54.89% 0.0123 -0.0834)
OKLCH	oklch(54.89% 0.084 278.4)
XYZ	xyz(17.3618, 16.1579, 36.3794)
Luminance	0.1616 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666CA2 #A29C66

analogous

#668AA2 #666CA2 #7E66A2

triadic

#666CA2 #A2666C #6CA266

tetradic

#666CA2 #A2668A #A29C66 #66A27E

square

#666CA2 #A2668A #A29C66 #66A27E

split-complementary

#666CA2 #A27E66 #8AA266

monochromatic

#363958 #4D527E #666CA2 #8C91B9 #B2B5D0

Accessibility & contrast

On white

4.96

#666CA2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.23

#666CA2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666CA2

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666CA2	#FFFFFF	#000000	##FFFFFF
##666CA2	1.00	4.96	4.23	4.96
#FFFFFF	4.96	1.00	21.00	1.00
#000000	4.23	21.00	1.00	21.00
##FFFFFF	4.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B72A4

Deuteranopia (green-blind)

#576EA1

Tritanopia (blue-blind)

#557680

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #666ca2;
/* rgb */ color: rgb(102, 108, 162);
/* oklch */ color: oklch(54.9% 0.084 278.4);

Tailwind

colors: {
  custom: {
    50: '#9496bd',
    500: '#666ca2',
    950: '#000000',
  },
}

SCSS

$custom: #666ca2;
$custom-light: #9496bd;
$custom-dark: #000000;

JSON

{
  "hex": "#666ca2",
  "rgb": {
    "r": 102,
    "g": 108,
    "b": 162
  },
  "hsl": {
    "h": 234,
    "s": 24.39,
    "l": 51.765
  },
  "oklch": {
    "l": 0.54889,
    "c": 0.08426,
    "h": 278.4
  },
  "luminance": 0.16159
}

Semantic roles & 50–950 ramp

primary

#666CA2

secondary

#BFBCA5

accent

#B867C1

background

#F9F9FB

surface

#F1F1F6

border

#CBCBD0

text

#0D0D12

muted

#7E7E81

Preview Lab

Preview with #666CA2

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

Preview Lab → · Contrast checker → · Palette generator →