#666A97#666A97

#666A97 is a mid, moderate blue. Relative luminance 0.154; OKLCH L 53.9% C 0.070 H 279.8°. Best body text is #FFFFFF at 5.16:1 contrast (WCAG AA passes).

Color values

HEX	#666A97
RGB	rgb(102, 106, 151)
HSL	hsl(235, 19%, 50%)
HSV	hsv(235, 32%, 59%)
CMYK	cmyk(32.5%, 29.8%, 0%, 40.8%)
CIE-LAB	lab(46.13, 9.51, -24.99)
CIE-LCH	lch(46.13, 26.74, 290.84°)
OKLab	oklab(53.92% 0.012 -0.0694)
OKLCH	oklch(53.92% 0.07 279.8)
XYZ	xyz(16.2179, 15.3667, 31.3837)
Luminance	0.1537 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666A97 #979366

analogous

#668397 #666A97 #7B6697

triadic

#666A97 #97666A #6A9766

tetradic

#666A97 #976683 #979366 #66977B

square

#666A97 #976683 #979366 #66977B

split-complementary

#666A97 #977B66 #839766

monochromatic

#35374E #4D5072 #666A97 #8A8DB0 #AFB1C9

Accessibility & contrast

On white

5.16

#666A97 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.07

#666A97 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666A97

5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666A97	#FFFFFF	#000000	##FFFFFF
##666A97	1.00	5.16	4.07	5.16
#FFFFFF	5.16	1.00	21.00	1.00
#000000	4.07	21.00	1.00	21.00
##FFFFFF	5.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D6F99

Deuteranopia (green-blind)

#5A6C96

Tritanopia (blue-blind)

#59727A

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #666a97;
/* rgb */ color: rgb(102, 106, 151);
/* oklch */ color: oklch(53.9% 0.070 279.8);

Tailwind

colors: {
  custom: {
    50: '#9394b5',
    500: '#666a97',
    950: '#000000',
  },
}

SCSS

$custom: #666a97;
$custom-light: #9394b5;
$custom-dark: #000000;

JSON

{
  "hex": "#666a97",
  "rgb": {
    "r": 102,
    "g": 106,
    "b": 151
  },
  "hsl": {
    "h": 235.102,
    "s": 19.368,
    "l": 49.608
  },
  "oklch": {
    "l": 0.53916,
    "c": 0.07041,
    "h": 279.8
  },
  "luminance": 0.15367
}

Semantic roles & 50–950 ramp

primary

#666A97

secondary

#B8B6A1

accent

#B56CBC

background

#F9F9FB

surface

#F1F1F6

border

#CBCBD0

text

#0D0D11

muted

#7E7E80

Preview Lab

Preview with #666A97

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

Preview Lab → · Contrast checker → · Palette generator →