#66BFDB#66BFDB

#66BFDB is a light, moderate cyan. Relative luminance 0.452; OKLCH L 76.0% C 0.094 H 220.8°. Best body text is #000000 at 10.04:1 contrast (WCAG AA passes).

Color values

HEX	#66BFDB
RGB	rgb(102, 191, 219)
HSL	hsl(194, 62%, 63%)
HSV	hsv(194, 53%, 86%)
CMYK	cmyk(53.4%, 12.8%, 0%, 14.1%)
CIE-LAB	lab(73.02, -18.99, -22.18)
CIE-LCH	lch(73.02, 29.20, 229.44°)
OKLab	oklab(75.99% -0.0713 -0.0615)
OKLCH	oklch(75.99% 0.094 220.8)
XYZ	xyz(36.8916, 45.1976, 73.7840)
Luminance	0.4520 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BFDB #DB8266

analogous

#66DBBC #66BFDB #6684DB

triadic

#66BFDB #DB66BF #BFDB66

tetradic

#66BFDB #BC66DB #DB8266 #84DB66

square

#66BFDB #BC66DB #DB8266 #84DB66

split-complementary

#66BFDB #DB6684 #DBBC66

monochromatic

#2683A1 #34AACF #66BFDB #98D4E7 #C9E8F2

Accessibility & contrast

On white

2.09

#66BFDB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.04

#66BFDB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BFDB

10.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BFDB	#FFFFFF	#000000	##000000
##66BFDB	1.00	2.09	10.04	10.04
#FFFFFF	2.09	1.00	21.00	21.00
#000000	10.04	21.00	1.00	1.00
##000000	10.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AEBBDD

Deuteranopia (green-blind)

#9DAEDB

Tritanopia (blue-blind)

#01C8C8

Achromatopsia (no color)

#B3B3B3

Design tokens & code

CSS

--color: #66bfdb;
/* rgb */ color: rgb(102, 191, 219);
/* oklch */ color: oklch(76.0% 0.094 220.8);

Tailwind

colors: {
  custom: {
    50: '#9ad2e6',
    500: '#66bfdb',
    950: '#000000',
  },
}

SCSS

$custom: #66bfdb;
$custom-light: #9ad2e6;
$custom-dark: #000000;

JSON

{
  "hex": "#66bfdb",
  "rgb": {
    "r": 102,
    "g": 191,
    "b": 219
  },
  "hsl": {
    "h": 194.359,
    "s": 61.905,
    "l": 62.941
  },
  "oklch": {
    "l": 0.75986,
    "c": 0.09417,
    "h": 220.8
  },
  "luminance": 0.45201
}

Semantic roles & 50–950 ramp

primary

#66BFDB

secondary

#E3C3B9

accent

#451CCA

background

#F9FCFE

surface

#F2F9FC

border

#CCD2D5

text

#0F1415

muted

#7E8284

Preview Lab

Preview with #66BFDB

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

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