#66ECFC#66ECFC

#66ECFC is a very light, moderate teal. Relative luminance 0.698; OKLCH L 87.5% C 0.118 H 206.0°. Best body text is #000000 at 14.97:1 contrast (WCAG AA passes).

Color values

HEX	#66ECFC
RGB	rgb(102, 236, 252)
HSL	hsl(186, 96%, 69%)
HSV	hsv(186, 60%, 99%)
CMYK	cmyk(59.5%, 6.3%, 0%, 1.2%)
CIE-LAB	lab(86.92, -31.97, -18.74)
CIE-LCH	lch(86.92, 37.05, 210.37°)
OKLab	oklab(87.49% -0.1062 -0.0519)
OKLCH	oklch(87.49% 0.118 206)
XYZ	xyz(53.0383, 69.8385, 102.7616)
Luminance	0.6984 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66ECFC #FC7666

analogous

#66FCC1 #66ECFC #66A1FC

triadic

#66ECFC #FC66EC #ECFC66

tetradic

#66ECFC #C166FC #FC7666 #A1FC66

square

#66ECFC #C166FC #FC7666 #A1FC66

split-complementary

#66ECFC #FC66A1 #FCC166

monochromatic

#04CBE3 #2AE5FB #66ECFC #A2F3FD #DEFBFE

Accessibility & contrast

On white

1.40

#66ECFC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.97

#66ECFC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66ECFC

14.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66ECFC	#FFFFFF	#000000	##000000
##66ECFC	1.00	1.40	14.97	14.97
#FFFFFF	1.40	1.00	21.00	21.00
#000000	14.97	21.00	1.00	1.00
##000000	14.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DAE3FD

Deuteranopia (green-blind)

#C3D2FC

Tritanopia (blue-blind)

#00F5F1

Achromatopsia (no color)

#DADADA

Design tokens & code

CSS

--color: #66ecfc;
/* rgb */ color: rgb(102, 236, 252);
/* oklch */ color: oklch(87.5% 0.118 206.0);

Tailwind

colors: {
  custom: {
    50: '#a0f2fd',
    500: '#66ecfc',
    950: '#000000',
  },
}

SCSS

$custom: #66ecfc;
$custom-light: #a0f2fd;
$custom-dark: #000000;

JSON

{
  "hex": "#66ecfc",
  "rgb": {
    "r": 102,
    "g": 236,
    "b": 252
  },
  "hsl": {
    "h": 186.4,
    "s": 96.154,
    "l": 69.412
  },
  "oklch": {
    "l": 0.87493,
    "c": 0.11816,
    "h": 206
  },
  "luminance": 0.69844
}

Semantic roles & 50–950 ramp

primary

#66ECFC

secondary

#D64130

accent

#1800E6

background

#FDFFFF

surface

#F7FEFF

border

#D0D6D7

text

#101717

muted

#818585

Preview Lab

Preview with #66ECFC

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

Preview Lab → · Contrast checker → · Palette generator →