#666EAD#666EAD

#666EAD is a mid, moderate blue. Relative luminance 0.170; OKLCH L 55.9% C 0.098 H 277.2°. Best body text is #FFFFFF at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#666EAD
RGB	rgb(102, 110, 173)
HSL	hsl(233, 30%, 54%)
HSV	hsv(233, 41%, 68%)
CMYK	cmyk(41%, 36.4%, 0%, 32.2%)
CIE-LAB	lab(48.25, 13.32, -34.61)
CIE-LCH	lch(48.25, 37.09, 291.05°)
OKLab	oklab(55.89% 0.0123 -0.0971)
OKLCH	oklch(55.89% 0.098 277.2)
XYZ	xyz(18.5960, 16.9929, 41.8272)
Luminance	0.1699 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666EAD #ADA566

analogous

#6692AD #666EAD #8266AD

triadic

#666EAD #AD666E #6EAD66

tetradic

#666EAD #AD6692 #ADA566 #66AD82

square

#666EAD #AD6692 #ADA566 #66AD82

split-complementary

#666EAD #AD8266 #92AD66

monochromatic

#353A63 #4B528B #666EAD #8E94C2 #B6BAD8

Accessibility & contrast

On white

4.77

#666EAD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.40

#666EAD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666EAD

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666EAD	#FFFFFF	#000000	##FFFFFF
##666EAD	1.00	4.77	4.40	4.77
#FFFFFF	4.77	1.00	21.00	1.00
#000000	4.40	21.00	1.00	21.00
##FFFFFF	4.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5975B0

Deuteranopia (green-blind)

#5470AC

Tritanopia (blue-blind)

#507B85

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #666ead;
/* rgb */ color: rgb(102, 110, 173);
/* oklch */ color: oklch(55.9% 0.098 277.2);

Tailwind

colors: {
  custom: {
    50: '#9497c5',
    500: '#666ead',
    950: '#000000',
  },
}

SCSS

$custom: #666ead;
$custom-light: #9497c5;
$custom-dark: #000000;

JSON

{
  "hex": "#666ead",
  "rgb": {
    "r": 102,
    "g": 110,
    "b": 173
  },
  "hsl": {
    "h": 233.239,
    "s": 30.213,
    "l": 53.922
  },
  "oklch": {
    "l": 0.55885,
    "c": 0.09793,
    "h": 277.2
  },
  "luminance": 0.16994
}

Semantic roles & 50–950 ramp

primary

#666EAD

secondary

#C7C3A8

accent

#BB61C6

background

#F9F9FC

surface

#F2F2F8

border

#CCCCD1

text

#0D0D13

muted

#7E7E82

Preview Lab

Preview with #666EAD

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

Preview Lab → · Contrast checker → · Palette generator →