#66BFEA#66BFEA

#66BFEA is a light, moderate cyan. Relative luminance 0.460; OKLCH L 76.6% C 0.105 H 231.3°. Best body text is #000000 at 10.21:1 contrast (WCAG AA passes).

Color values

HEX	#66BFEA
RGB	rgb(102, 191, 234)
HSL	hsl(200, 76%, 66%)
HSV	hsv(200, 56%, 92%)
CMYK	cmyk(56.4%, 18.4%, 0%, 8.2%)
CIE-LAB	lab(73.56, -14.63, -29.49)
CIE-LCH	lch(73.56, 32.92, 243.61°)
OKLab	oklab(76.59% -0.0658 -0.0822)
OKLCH	oklch(76.59% 0.105 231.3)
XYZ	xyz(38.9559, 46.0233, 84.6564)
Luminance	0.4603 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BFEA #EA9166

analogous

#66EAD3 #66BFEA #667DEA

triadic

#66BFEA #EA66BF #BFEA66

tetradic

#66BFEA #D366EA #EA9166 #7DEA66

square

#66BFEA #D366EA #EA9166 #7DEA66

split-complementary

#66BFEA #EA667D #EAD366

monochromatic

#1A87BC #30A8E3 #66BFEA #9CD6F1 #D2ECF9

Accessibility & contrast

On white

2.06

#66BFEA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.21

#66BFEA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BFEA

10.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BFEA	#FFFFFF	#000000	##000000
##66BFEA	1.00	2.06	10.21	10.21
#FFFFFF	2.06	1.00	21.00	21.00
#000000	10.21	21.00	1.00	1.00
##000000	10.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AABDEC

Deuteranopia (green-blind)

#97AFE9

Tritanopia (blue-blind)

#00CBCD

Achromatopsia (no color)

#B5B5B5

Design tokens & code

CSS

--color: #66bfea;
/* rgb */ color: rgb(102, 191, 234);
/* oklch */ color: oklch(76.6% 0.105 231.3);

Tailwind

colors: {
  custom: {
    50: '#9bd2f0',
    500: '#66bfea',
    950: '#000000',
  },
}

SCSS

$custom: #66bfea;
$custom-light: #9bd2f0;
$custom-dark: #000000;

JSON

{
  "hex": "#66bfea",
  "rgb": {
    "r": 102,
    "g": 191,
    "b": 234
  },
  "hsl": {
    "h": 199.545,
    "s": 75.862,
    "l": 65.882
  },
  "oklch": {
    "l": 0.76594,
    "c": 0.10533,
    "h": 231.3
  },
  "luminance": 0.46027
}

Semantic roles & 50–950 ramp

primary

#66BFEA

secondary

#ECCEC0

accent

#4F0DD8

background

#FAFCFE

surface

#F4F9FD

border

#CED2D5

text

#0F1416

muted

#7F8284

Preview Lab

Preview with #66BFEA

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

Preview Lab → · Contrast checker → · Palette generator →