#66E4F8#66E4F8

#66E4F8 is a very light, moderate teal. Relative luminance 0.651; OKLCH L 85.5% C 0.114 H 209.4°. Best body text is #000000 at 14.02:1 contrast (WCAG AA passes).

Color values

HEX	#66E4F8
RGB	rgb(102, 228, 248)
HSL	hsl(188, 91%, 69%)
HSV	hsv(188, 59%, 97%)
CMYK	cmyk(58.9%, 8.1%, 0%, 2.7%)
CIE-LAB	lab(84.53, -29.25, -20.24)
CIE-LCH	lch(84.53, 35.57, 214.69°)
OKLab	oklab(85.53% -0.0996 -0.0561)
OKLCH	oklch(85.53% 0.114 209.4)
XYZ	xyz(50.1592, 65.0838, 98.7078)
Luminance	0.6509 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66E4F8 #F87A66

analogous

#66F8C3 #66E4F8 #669BF8

triadic

#66E4F8 #F866E4 #E4F866

tetradic

#66E4F8 #C366F8 #F87A66 #9BF866

square

#66E4F8 #C366F8 #F87A66 #9BF866

split-complementary

#66E4F8 #F8669B #F8C366

monochromatic

#0ABDDA #2BDAF5 #66E4F8 #A1EEFB #DBF9FD

Accessibility & contrast

On white

1.50

#66E4F8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.02

#66E4F8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66E4F8

14.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66E4F8	#FFFFFF	#000000	##000000
##66E4F8	1.00	1.50	14.02	14.02
#FFFFFF	1.50	1.00	21.00	21.00
#000000	14.02	21.00	1.00	1.00
##000000	14.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D2DCF9

Deuteranopia (green-blind)

#BCCCF8

Tritanopia (blue-blind)

#00EDEA

Achromatopsia (no color)

#D3D3D3

Design tokens & code

CSS

--color: #66e4f8;
/* rgb */ color: rgb(102, 228, 248);
/* oklch */ color: oklch(85.5% 0.114 209.4);

Tailwind

colors: {
  custom: {
    50: '#9fecfa',
    500: '#66e4f8',
    950: '#000000',
  },
}

SCSS

$custom: #66e4f8;
$custom-light: #9fecfa;
$custom-dark: #000000;

JSON

{
  "hex": "#66e4f8",
  "rgb": {
    "r": 102,
    "g": 228,
    "b": 248
  },
  "hsl": {
    "h": 188.219,
    "s": 91.25,
    "l": 68.627
  },
  "oklch": {
    "l": 0.85528,
    "c": 0.11427,
    "h": 209.4
  },
  "luminance": 0.65089
}

Semantic roles & 50–950 ramp

primary

#66E4F8

secondary

#D24731

accent

#1F00E6

background

#FDFEFF

surface

#F7FDFF

border

#D0D5D7

text

#101617

muted

#818485

Preview Lab

Preview with #66E4F8

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

Preview Lab → · Contrast checker → · Palette generator →