#66DDE5#66DDE5

#66DDE5 is a very light, moderate teal. Relative luminance 0.602; OKLCH L 83.3% C 0.107 H 201.3°. Best body text is #000000 at 13.04:1 contrast (WCAG AA passes).

Color values

HEX	#66DDE5
RGB	rgb(102, 221, 229)
HSL	hsl(184, 71%, 65%)
HSV	hsv(184, 55%, 90%)
CMYK	cmyk(55.5%, 3.5%, 0%, 10.2%)
CIE-LAB	lab(81.94, -31.10, -14.08)
CIE-LCH	lch(81.94, 34.14, 204.35°)
OKLab	oklab(83.25% -0.0998 -0.0389)
OKLCH	oklch(83.25% 0.107 201.3)
XYZ	xyz(45.4729, 60.1904, 83.3350)
Luminance	0.6019 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66DDE5 #E56E66

analogous

#66E5AE #66DDE5 #669DE5

triadic

#66DDE5 #E566DD #DDE566

tetradic

#66DDE5 #AE66E5 #E56E66 #9DE566

square

#66DDE5 #AE66E5 #E56E66 #9DE566

split-complementary

#66DDE5 #E5669D #E5AE66

monochromatic

#1EA9B2 #32D1DC #66DDE5 #9AE9EE #CFF4F7

Accessibility & contrast

On white

1.61

#66DDE5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.04

#66DDE5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66DDE5

13.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66DDE5	#FFFFFF	#000000	##000000
##66DDE5	1.00	1.61	13.04	13.04
#FFFFFF	1.61	1.00	21.00	21.00
#000000	13.04	21.00	1.00	1.00
##000000	13.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CFD4E6

Deuteranopia (green-blind)

#BAC5E6

Tritanopia (blue-blind)

#00E4DF

Achromatopsia (no color)

#CCCCCC

Design tokens & code

CSS

--color: #66dde5;
/* rgb */ color: rgb(102, 221, 229);
/* oklch */ color: oklch(83.3% 0.107 201.3);

Tailwind

colors: {
  custom: {
    50: '#9de8ed',
    500: '#66dde5',
    950: '#000000',
  },
}

SCSS

$custom: #66dde5;
$custom-light: #9de8ed;
$custom-dark: #000000;

JSON

{
  "hex": "#66dde5",
  "rgb": {
    "r": 102,
    "g": 221,
    "b": 229
  },
  "hsl": {
    "h": 183.78,
    "s": 70.95,
    "l": 64.902
  },
  "oklch": {
    "l": 0.83251,
    "c": 0.10716,
    "h": 201.3
  },
  "luminance": 0.60195
}

Semantic roles & 50–950 ramp

primary

#66DDE5

secondary

#B3443C

accent

#1F13D3

background

#FCFEFE

surface

#F6FCFD

border

#D0D5D5

text

#0F1616

muted

#808484

Preview Lab

Preview with #66DDE5

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

Preview Lab → · Contrast checker → · Palette generator →