#66BFE6#66BFE6

#66BFE6 is a light, moderate cyan. Relative luminance 0.458; OKLCH L 76.4% C 0.102 H 228.7°. Best body text is #000000 at 10.16:1 contrast (WCAG AA passes).

Color values

HEX	#66BFE6
RGB	rgb(102, 191, 230)
HSL	hsl(198, 72%, 65%)
HSV	hsv(198, 56%, 90%)
CMYK	cmyk(55.7%, 17%, 0%, 9.8%)
CIE-LAB	lab(73.41, -15.81, -27.55)
CIE-LCH	lch(73.41, 31.77, 240.15°)
OKLab	oklab(76.43% -0.0673 -0.0767)
OKLCH	oklch(76.43% 0.102 228.7)
XYZ	xyz(38.3878, 45.7961, 81.6641)
Luminance	0.4580 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BFE6 #E68D66

analogous

#66E6CD #66BFE6 #667FE6

triadic

#66BFE6 #E666BF #BFE666

tetradic

#66BFE6 #CD66E6 #E68D66 #7FE666

square

#66BFE6 #CD66E6 #E68D66 #7FE666

split-complementary

#66BFE6 #E6667F #E6CD66

monochromatic

#1D86B4 #31A9DD #66BFE6 #9BD5EF #CFEBF7

Accessibility & contrast

On white

2.07

#66BFE6 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.16

#66BFE6 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BFE6

10.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BFE6	#FFFFFF	#000000	##000000
##66BFE6	1.00	2.07	10.16	10.16
#FFFFFF	2.07	1.00	21.00	21.00
#000000	10.16	21.00	1.00	1.00
##000000	10.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ABBCE8

Deuteranopia (green-blind)

#99AEE6

Tritanopia (blue-blind)

#00CACC

Achromatopsia (no color)

#B4B4B4

Design tokens & code

CSS

--color: #66bfe6;
/* rgb */ color: rgb(102, 191, 230);
/* oklch */ color: oklch(76.4% 0.102 228.7);

Tailwind

colors: {
  custom: {
    50: '#9bd2ee',
    500: '#66bfe6',
    950: '#000000',
  },
}

SCSS

$custom: #66bfe6;
$custom-light: #9bd2ee;
$custom-dark: #000000;

JSON

{
  "hex": "#66bfe6",
  "rgb": {
    "r": 102,
    "g": 191,
    "b": 230
  },
  "hsl": {
    "h": 198.281,
    "s": 71.91,
    "l": 65.098
  },
  "oklch": {
    "l": 0.76427,
    "c": 0.10201,
    "h": 228.7
  },
  "luminance": 0.458
}

Semantic roles & 50–950 ramp

primary

#66BFE6

secondary

#EACBBE

accent

#4D12D4

background

#FAFCFE

surface

#F3F9FD

border

#CDD2D5

text

#0F1416

muted

#7F8284

Preview Lab

Preview with #66BFE6

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

Preview Lab → · Contrast checker → · Palette generator →