#66BFEC#66BFEC

#66BFEC is a light, moderate cyan. Relative luminance 0.461; OKLCH L 76.7% C 0.107 H 232.5°. Best body text is #000000 at 10.23:1 contrast (WCAG AA passes).

Color values

HEX	#66BFEC
RGB	rgb(102, 191, 236)
HSL	hsl(200, 78%, 66%)
HSV	hsv(200, 57%, 93%)
CMYK	cmyk(56.8%, 19.1%, 0%, 7.5%)
CIE-LAB	lab(73.64, -14.04, -30.46)
CIE-LCH	lch(73.64, 33.54, 245.25°)
OKLab	oklab(76.68% -0.0651 -0.085)
OKLCH	oklch(76.68% 0.107 232.5)
XYZ	xyz(39.2449, 46.1389, 86.1782)
Luminance	0.4614 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BFEC #EC9366

analogous

#66ECD6 #66BFEC #667CEC

triadic

#66BFEC #EC66BF #BFEC66

tetradic

#66BFEC #D666EC #EC9366 #7CEC66

square

#66BFEC #D666EC #EC9366 #7CEC66

split-complementary

#66BFEC #EC667C #ECD666

monochromatic

#1887C0 #30A8E5 #66BFEC #9CD6F3 #D3EDFA

Accessibility & contrast

On white

2.05

#66BFEC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.23

#66BFEC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BFEC

10.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BFEC	#FFFFFF	#000000	##000000
##66BFEC	1.00	2.05	10.23	10.23
#FFFFFF	2.05	1.00	21.00	21.00
#000000	10.23	21.00	1.00	1.00
##000000	10.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A9BDEE

Deuteranopia (green-blind)

#96AFEB

Tritanopia (blue-blind)

#00CBCE

Achromatopsia (no color)

#B5B5B5

Design tokens & code

CSS

--color: #66bfec;
/* rgb */ color: rgb(102, 191, 236);
/* oklch */ color: oklch(76.7% 0.107 232.5);

Tailwind

colors: {
  custom: {
    50: '#9cd2f2',
    500: '#66bfec',
    950: '#000000',
  },
}

SCSS

$custom: #66bfec;
$custom-light: #9cd2f2;
$custom-dark: #000000;

JSON

{
  "hex": "#66bfec",
  "rgb": {
    "r": 102,
    "g": 191,
    "b": 236
  },
  "hsl": {
    "h": 200.149,
    "s": 77.907,
    "l": 66.275
  },
  "oklch": {
    "l": 0.76678,
    "c": 0.10707,
    "h": 232.5
  },
  "luminance": 0.46143
}

Semantic roles & 50–950 ramp

primary

#66BFEC

secondary

#EDD0C1

accent

#510BDA

background

#FAFCFE

surface

#F4F9FD

border

#CED2D5

text

#0F1417

muted

#7F8285

Preview Lab

Preview with #66BFEC

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

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