#66A7EE#66A7EE

#66A7EE is a light, vivid cyan. Relative luminance 0.366; OKLCH L 71.5% C 0.124 H 251.9°. Best body text is #000000 at 8.33:1 contrast (WCAG AA passes).

Color values

HEX	#66A7EE
RGB	rgb(102, 167, 238)
HSL	hsl(211, 80%, 67%)
HSV	hsv(211, 57%, 93%)
CMYK	cmyk(57.1%, 29.8%, 0%, 6.7%)
CIE-LAB	lab(67.00, -0.32, -41.85)
CIE-LCH	lch(67.00, 41.85, 269.57°)
OKLab	oklab(71.46% -0.0386 -0.1179)
OKLCH	oklch(71.46% 0.124 251.9)
XYZ	xyz(34.7253, 36.6322, 86.1131)
Luminance	0.3664 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66A7EE #EEAD66

analogous

#66EBEE #66A7EE #6966EE

triadic

#66A7EE #EE66A7 #A7EE66

tetradic

#66A7EE #EE66EB #EEAD66 #66EE69

square

#66A7EE #EE66EB #EEAD66 #66EE69

split-complementary

#66A7EE #EE6966 #EBEE66

monochromatic

#1669C4 #2F87E8 #66A7EE #9DC7F4 #D4E6FA

Accessibility & contrast

On white

2.52

#66A7EE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.33

#66A7EE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66A7EE

8.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66A7EE	#FFFFFF	#000000	##000000
##66A7EE	1.00	2.52	8.33	8.33
#FFFFFF	2.52	1.00	21.00	21.00
#000000	8.33	21.00	1.00	1.00
##000000	8.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#89AAF1

Deuteranopia (green-blind)

#789DED

Tritanopia (blue-blind)

#00B7C0

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #66a7ee;
/* rgb */ color: rgb(102, 167, 238);
/* oklch */ color: oklch(71.5% 0.124 251.9);

Tailwind

colors: {
  custom: {
    50: '#9bc0f4',
    500: '#66a7ee',
    950: '#000000',
  },
}

SCSS

$custom: #66a7ee;
$custom-light: #9bc0f4;
$custom-dark: #000000;

JSON

{
  "hex": "#66a7ee",
  "rgb": {
    "r": 102,
    "g": 167,
    "b": 238
  },
  "hsl": {
    "h": 211.324,
    "s": 80,
    "l": 66.667
  },
  "oklch": {
    "l": 0.71463,
    "c": 0.12405,
    "h": 251.9
  },
  "luminance": 0.36635
}

Semantic roles & 50–950 ramp

primary

#66A7EE

secondary

#EED9C2

accent

#7709DC

background

#FAFBFE

surface

#F3F7FD

border

#CDD0D5

text

#0F1217

muted

#7F8185

Preview Lab

Preview with #66A7EE

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

Preview Lab → · Contrast checker → · Palette generator →