#66BBCF#66BBCF

#66BBCF is a light, moderate cyan. Relative luminance 0.429; OKLCH L 74.6% C 0.087 H 214.9°. Best body text is #000000 at 9.57:1 contrast (WCAG AA passes).

Color values

HEX	#66BBCF
RGB	rgb(102, 187, 207)
HSL	hsl(191, 52%, 61%)
HSV	hsv(191, 51%, 81%)
CMYK	cmyk(50.7%, 9.7%, 0%, 18.8%)
CIE-LAB	lab(71.46, -20.31, -18.01)
CIE-LCH	lch(71.46, 27.14, 221.57°)
OKLab	oklab(74.61% -0.0715 -0.0498)
OKLCH	oklch(74.61% 0.087 214.9)
XYZ	xyz(34.5080, 42.8675, 65.4751)
Luminance	0.4287 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BBCF #CF7A66

analogous

#66CFAF #66BBCF #6686CF

triadic

#66BBCF #CF66BB #BBCF66

tetradic

#66BBCF #AF66CF #CF7A66 #86CF66

square

#66BBCF #AF66CF #CF7A66 #86CF66

split-complementary

#66BBCF #CF6686 #CFAF66

monochromatic

#2D7B8E #3BA4BD #66BBCF #95D0DE #C3E4EC

Accessibility & contrast

On white

2.19

#66BBCF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.57

#66BBCF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BBCF

9.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BBCF	#FFFFFF	#000000	##000000
##66BBCF	1.00	2.19	9.57	9.57
#FFFFFF	2.19	1.00	21.00	21.00
#000000	9.57	21.00	1.00	1.00
##000000	9.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ADB6D0

Deuteranopia (green-blind)

#9CAACF

Tritanopia (blue-blind)

#23C3C1

Achromatopsia (no color)

#AFAFAF

Design tokens & code

CSS

--color: #66bbcf;
/* rgb */ color: rgb(102, 187, 207);
/* oklch */ color: oklch(74.6% 0.087 214.9);

Tailwind

colors: {
  custom: {
    50: '#99cfdd',
    500: '#66bbcf',
    950: '#000000',
  },
}

SCSS

$custom: #66bbcf;
$custom-light: #99cfdd;
$custom-dark: #000000;

JSON

{
  "hex": "#66bbcf",
  "rgb": {
    "r": 102,
    "g": 187,
    "b": 207
  },
  "hsl": {
    "h": 191.429,
    "s": 52.239,
    "l": 60.588
  },
  "oklch": {
    "l": 0.74606,
    "c": 0.08708,
    "h": 214.9
  },
  "luminance": 0.4287
}

Semantic roles & 50–950 ramp

primary

#66BBCF

secondary

#DCBCB4

accent

#4326C0

background

#F9FCFD

surface

#F2F9FB

border

#CCD2D4

text

#0E1415

muted

#7E8283

Preview Lab

Preview with #66BBCF

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

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