#666ECA#666ECA

#666ECA is a mid, vivid blue. Relative luminance 0.182; OKLCH L 57.6% C 0.140 H 277.3°. Best body text is #000000 at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#666ECA
RGB	rgb(102, 110, 202)
HSL	hsl(235, 49%, 60%)
HSV	hsv(235, 50%, 79%)
CMYK	cmyk(49.5%, 45.5%, 0%, 20.8%)
CIE-LAB	lab(49.79, 22.09, -48.93)
CIE-LCH	lch(49.79, 53.69, 294.30°)
OKLab	oklab(57.56% 0.0178 -0.139)
OKLCH	oklch(57.56% 0.14 277.3)
XYZ	xyz(21.7128, 18.2397, 58.2422)
Luminance	0.1824 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666ECA #CAC266

analogous

#66A0CA #666ECA #9066CA

triadic

#666ECA #CA666E #6ECA66

tetradic

#666ECA #CA66A0 #CAC266 #66CA90

square

#666ECA #CA66A0 #CAC266 #66CA90

split-complementary

#666ECA #CA9066 #A0CA66

monochromatic

#2F3687 #3E48B4 #666ECA #9399DA #C1C4E9

Accessibility & contrast

On white

4.52

#666ECA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.65

#666ECA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #666ECA

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666ECA	#FFFFFF	#000000	##000000
##666ECA	1.00	4.52	4.65	4.65
#FFFFFF	4.52	1.00	21.00	21.00
#000000	4.65	21.00	1.00	1.00
##000000	4.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#477BCD

Deuteranopia (green-blind)

#3E73C8

Tritanopia (blue-blind)

#3F8292

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #666eca;
/* rgb */ color: rgb(102, 110, 202);
/* oklch */ color: oklch(57.6% 0.140 277.3);

Tailwind

colors: {
  custom: {
    50: '#9897da',
    500: '#666eca',
    950: '#000000',
  },
}

SCSS

$custom: #666eca;
$custom-light: #9897da;
$custom-dark: #000000;

JSON

{
  "hex": "#666eca",
  "rgb": {
    "r": 102,
    "g": 110,
    "b": 202
  },
  "hsl": {
    "h": 235.2,
    "s": 48.544,
    "l": 59.608
  },
  "oklch": {
    "l": 0.57558,
    "c": 0.14009,
    "h": 277.3
  },
  "luminance": 0.18241
}

Semantic roles & 50–950 ramp

primary

#666ECA

secondary

#D9D6B2

accent

#CD50D8

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0D15

muted

#7E7E83

Preview Lab

Preview with #666ECA

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

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