#66BCDA#66BCDA

#66BCDA is a light, moderate cyan. Relative luminance 0.439; OKLCH L 75.3% C 0.094 H 223.0°. Best body text is #000000 at 9.77:1 contrast (WCAG AA passes).

Color values

HEX	#66BCDA
RGB	rgb(102, 188, 218)
HSL	hsl(196, 61%, 63%)
HSV	hsv(196, 53%, 85%)
CMYK	cmyk(53.2%, 13.8%, 0%, 14.5%)
CIE-LAB	lab(72.13, -17.72, -23.00)
CIE-LCH	lch(72.13, 29.04, 232.39°)
OKLab	oklab(75.26% -0.0684 -0.0638)
OKLCH	oklch(75.26% 0.094 223)
XYZ	xyz(36.1128, 43.8500, 72.8769)
Luminance	0.4385 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BCDA #DA8466

analogous

#66DABE #66BCDA #6682DA

triadic

#66BCDA #DA66BC #BCDA66

tetradic

#66BCDA #BE66DA #DA8466 #82DA66

square

#66BCDA #BE66DA #DA8466 #82DA66

split-complementary

#66BCDA #DA6682 #DABE66

monochromatic

#26809F #35A6CE #66BCDA #97D2E6 #C9E7F2

Accessibility & contrast

On white

2.15

#66BCDA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.77

#66BCDA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BCDA

9.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BCDA	#FFFFFF	#000000	##000000
##66BCDA	1.00	2.15	9.77	9.77
#FFFFFF	2.15	1.00	21.00	21.00
#000000	9.77	21.00	1.00	1.00
##000000	9.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ABB8DC

Deuteranopia (green-blind)

#9AABDA

Tritanopia (blue-blind)

#09C5C5

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #66bcda;
/* rgb */ color: rgb(102, 188, 218);
/* oklch */ color: oklch(75.3% 0.094 223.0);

Tailwind

colors: {
  custom: {
    50: '#9ad0e5',
    500: '#66bcda',
    950: '#000000',
  },
}

SCSS

$custom: #66bcda;
$custom-light: #9ad0e5;
$custom-dark: #000000;

JSON

{
  "hex": "#66bcda",
  "rgb": {
    "r": 102,
    "g": 188,
    "b": 218
  },
  "hsl": {
    "h": 195.517,
    "s": 61.053,
    "l": 62.745
  },
  "oklch": {
    "l": 0.75261,
    "c": 0.09351,
    "h": 223
  },
  "luminance": 0.43853
}

Semantic roles & 50–950 ramp

primary

#66BCDA

secondary

#E3C4B9

accent

#491DC9

background

#F9FCFE

surface

#F2F9FC

border

#CCD2D5

text

#0F1415

muted

#7E8284

Preview Lab

Preview with #66BCDA

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

Preview Lab → · Contrast checker → · Palette generator →