#66D2EB#66D2EB

#66D2EB is a light, moderate cyan. Relative luminance 0.549; OKLCH L 80.9% C 0.105 H 215.1°. Best body text is #000000 at 11.98:1 contrast (WCAG AA passes).

Color values

HEX	#66D2EB
RGB	rgb(102, 210, 235)
HSL	hsl(191, 77%, 66%)
HSV	hsv(191, 57%, 92%)
CMYK	cmyk(56.6%, 10.6%, 0%, 7.8%)
CIE-LAB	lab(78.99, -24.08, -21.73)
CIE-LCH	lch(78.99, 32.43, 222.07°)
OKLab	oklab(80.94% -0.0858 -0.0602)
OKLCH	oklch(80.94% 0.105 215.1)
XYZ	xyz(43.5155, 54.9119, 86.8870)
Luminance	0.5492 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66D2EB #EB7F66

analogous

#66EBC1 #66D2EB #668FEB

triadic

#66D2EB #EB66D2 #D2EB66

tetradic

#66D2EB #C166EB #EB7F66 #8FEB66

square

#66D2EB #C166EB #EB7F66 #8FEB66

split-complementary

#66D2EB #EB668F #EBC166

monochromatic

#199FBE #30C2E4 #66D2EB #9CE2F2 #D2F2F9

Accessibility & contrast

On white

1.75

#66D2EB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.98

#66D2EB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D2EB

11.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66D2EB	#FFFFFF	#000000	##000000
##66D2EB	1.00	1.75	11.98	11.98
#FFFFFF	1.75	1.00	21.00	21.00
#000000	11.98	21.00	1.00	1.00
##000000	11.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C0CCEC

Deuteranopia (green-blind)

#ACBDEB

Tritanopia (blue-blind)

#00DCDA

Achromatopsia (no color)

#C4C4C4

Design tokens & code

CSS

--color: #66d2eb;
/* rgb */ color: rgb(102, 210, 235);
/* oklch */ color: oklch(80.9% 0.105 215.1);

Tailwind

colors: {
  custom: {
    50: '#9ce0f1',
    500: '#66d2eb',
    950: '#000000',
  },
}

SCSS

$custom: #66d2eb;
$custom-light: #9ce0f1;
$custom-dark: #000000;

JSON

{
  "hex": "#66d2eb",
  "rgb": {
    "r": 102,
    "g": 210,
    "b": 235
  },
  "hsl": {
    "h": 191.278,
    "s": 76.879,
    "l": 66.078
  },
  "oklch": {
    "l": 0.80942,
    "c": 0.10485,
    "h": 215.1
  },
  "luminance": 0.54916
}

Semantic roles & 50–950 ramp

primary

#66D2EB

secondary

#BD5139

accent

#330CD9

background

#FCFEFF

surface

#F6FCFE

border

#D0D5D6

text

#0F1516

muted

#808485

Preview Lab

Preview with #66D2EB

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

Preview Lab → · Contrast checker → · Palette generator →