#66ABC7#66ABC7

#66ABC7 is a light, moderate cyan. Relative luminance 0.361; OKLCH L 70.6% C 0.081 H 226.1°. Best body text is #000000 at 8.21:1 contrast (WCAG AA passes).

Color values

HEX	#66ABC7
RGB	rgb(102, 171, 199)
HSL	hsl(197, 46%, 59%)
HSV	hsv(197, 49%, 78%)
CMYK	cmyk(48.7%, 14.1%, 0%, 22%)
CIE-LAB	lab(66.57, -14.18, -21.04)
CIE-LCH	lch(66.57, 25.37, 236.01°)
OKLab	oklab(70.61% -0.0561 -0.0582)
OKLCH	oklch(70.61% 0.081 226.1)
XYZ	xyz(30.3474, 36.0717, 59.3851)
Luminance	0.3607 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66ABC7 #C78266

analogous

#66C7B3 #66ABC7 #667BC7

triadic

#66ABC7 #C766AB #ABC766

tetradic

#66ABC7 #B366C7 #C78266 #7BC766

square

#66ABC7 #B366C7 #C78266 #7BC766

split-complementary

#66ABC7 #C7667B #C7B366

monochromatic

#306B83 #408FB0 #66ABC7 #93C4D7 #C0DCE8

Accessibility & contrast

On white

2.56

#66ABC7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.21

#66ABC7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66ABC7

8.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66ABC7	#FFFFFF	#000000	##000000
##66ABC7	1.00	2.56	8.21	8.21
#FFFFFF	2.56	1.00	21.00	21.00
#000000	8.21	21.00	1.00	1.00
##000000	8.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9CA8C8

Deuteranopia (green-blind)

#8E9DC7

Tritanopia (blue-blind)

#33B3B4

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #66abc7;
/* rgb */ color: rgb(102, 171, 199);
/* oklch */ color: oklch(70.6% 0.081 226.1);

Tailwind

colors: {
  custom: {
    50: '#97c4d8',
    500: '#66abc7',
    950: '#000000',
  },
}

SCSS

$custom: #66abc7;
$custom-light: #97c4d8;
$custom-dark: #000000;

JSON

{
  "hex": "#66abc7",
  "rgb": {
    "r": 102,
    "g": 171,
    "b": 199
  },
  "hsl": {
    "h": 197.32,
    "s": 46.411,
    "l": 59.02
  },
  "oklch": {
    "l": 0.70613,
    "c": 0.08084,
    "h": 226.1
  },
  "luminance": 0.36074
}

Semantic roles & 50–950 ramp

primary

#66ABC7

secondary

#D7BCB1

accent

#7852D6

background

#F9FCFD

surface

#F2F8FA

border

#CCD1D3

text

#0E1214

muted

#7E8183

Preview Lab

Preview with #66ABC7

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

Preview Lab → · Contrast checker → · Palette generator →