#666ABB#666ABB

#666ABB is a mid, vivid blue. Relative luminance 0.167; OKLCH L 55.9% C 0.124 H 279.4°. Best body text is #FFFFFF at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#666ABB
RGB	rgb(102, 106, 187)
HSL	hsl(237, 38%, 57%)
HSV	hsv(237, 45%, 73%)
CMYK	cmyk(45.5%, 43.3%, 0%, 26.7%)
CIE-LAB	lab(47.90, 19.95, -43.29)
CIE-LCH	lch(47.90, 47.67, 294.74°)
OKLab	oklab(55.86% 0.0203 -0.1225)
OKLCH	oklch(55.86% 0.124 279.4)
XYZ	xyz(19.6005, 16.7197, 49.1985)
Luminance	0.1672 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666ABB #BBB766

analogous

#6695BB #666ABB #8D66BB

triadic

#666ABB #BB666A #6ABB66

tetradic

#666ABB #BB6695 #BBB766 #66BB8D

square

#666ABB #BB6695 #BBB766 #66BB8D

split-complementary

#666ABB #BB8D66 #95BB66

monochromatic

#333673 #464A9E #666ABB #9093CE #BBBDE1

Accessibility & contrast

On white

4.83

#666ABB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.34

#666ABB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666ABB

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666ABB	#FFFFFF	#000000	##FFFFFF
##666ABB	1.00	4.83	4.34	4.83
#FFFFFF	4.83	1.00	21.00	1.00
#000000	4.34	21.00	1.00	21.00
##FFFFFF	4.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B75BE

Deuteranopia (green-blind)

#456FB9

Tritanopia (blue-blind)

#497B89

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #666abb;
/* rgb */ color: rgb(102, 106, 187);
/* oklch */ color: oklch(55.9% 0.124 279.4);

Tailwind

colors: {
  custom: {
    50: '#9694d0',
    500: '#666abb',
    950: '#000000',
  },
}

SCSS

$custom: #666abb;
$custom-light: #9694d0;
$custom-dark: #000000;

JSON

{
  "hex": "#666abb",
  "rgb": {
    "r": 102,
    "g": 106,
    "b": 187
  },
  "hsl": {
    "h": 237.176,
    "s": 38.462,
    "l": 56.667
  },
  "oklch": {
    "l": 0.55856,
    "c": 0.12415,
    "h": 279.4
  },
  "luminance": 0.16721
}

Semantic roles & 50–950 ramp

primary

#666ABB

secondary

#D0CEAD

accent

#C959CE

background

#F9F9FC

surface

#F2F1F9

border

#CCCBD2

text

#0E0D14

muted

#7E7E82

Preview Lab

Preview with #666ABB

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

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