#66A4E2#66A4E2

#66A4E2 is a light, moderate cyan. Relative luminance 0.349; OKLCH L 70.2% C 0.112 H 249.7°. Best body text is #000000 at 7.97:1 contrast (WCAG AA passes).

Color values

HEX	#66A4E2
RGB	rgb(102, 164, 226)
HSL	hsl(210, 68%, 64%)
HSV	hsv(210, 55%, 89%)
CMYK	cmyk(54.9%, 27.4%, 0%, 11.4%)
CIE-LAB	lab(65.64, -2.35, -37.39)
CIE-LCH	lch(65.64, 37.46, 266.40°)
OKLab	oklab(70.22% -0.0388 -0.105)
OKLCH	oklch(70.22% 0.112 249.7)
XYZ	xyz(32.4775, 34.8640, 76.9547)
Luminance	0.3487 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66A4E2 #E2A466

analogous

#66E2E2 #66A4E2 #6666E2

triadic

#66A4E2 #E266A4 #A4E266

tetradic

#66A4E2 #E266E2 #E2A466 #66E266

square

#66A4E2 #E266E2 #E2A466 #66E266

split-complementary

#66A4E2 #E26666 #E2E266

monochromatic

#2167AD #3385D8 #66A4E2 #99C3EC #CDE1F6

Accessibility & contrast

On white

2.63

#66A4E2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.97

#66A4E2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66A4E2

7.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66A4E2	#FFFFFF	#000000	##000000
##66A4E2	1.00	2.63	7.97	7.97
#FFFFFF	2.63	1.00	21.00	21.00
#000000	7.97	21.00	1.00	1.00
##000000	7.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8AA6E5

Deuteranopia (green-blind)

#7A9AE1

Tritanopia (blue-blind)

#08B2BA

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #66a4e2;
/* rgb */ color: rgb(102, 164, 226);
/* oklch */ color: oklch(70.2% 0.112 249.7);

Tailwind

colors: {
  custom: {
    50: '#9abeeb',
    500: '#66a4e2',
    950: '#000000',
  },
}

SCSS

$custom: #66a4e2;
$custom-light: #9abeeb;
$custom-dark: #000000;

JSON

{
  "hex": "#66a4e2",
  "rgb": {
    "r": 102,
    "g": 164,
    "b": 226
  },
  "hsl": {
    "h": 210,
    "s": 68.132,
    "l": 64.314
  },
  "oklch": {
    "l": 0.70224,
    "c": 0.11193,
    "h": 249.7
  },
  "luminance": 0.34867
}

Semantic roles & 50–950 ramp

primary

#66A4E2

secondary

#E7D2BC

accent

#7315D0

background

#F9FBFE

surface

#F2F6FD

border

#CCD0D5

text

#0F1216

muted

#7E8184

Preview Lab

Preview with #66A4E2

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

Preview Lab → · Contrast checker → · Palette generator →