#66BFEE#66BFEE

#66BFEE is a light, moderate cyan. Relative luminance 0.463; OKLCH L 76.8% C 0.109 H 233.7°. Best body text is #000000 at 10.25:1 contrast (WCAG AA passes).

Color values

HEX	#66BFEE
RGB	rgb(102, 191, 238)
HSL	hsl(201, 80%, 67%)
HSV	hsv(201, 57%, 93%)
CMYK	cmyk(57.1%, 19.7%, 0%, 6.7%)
CIE-LAB	lab(73.71, -13.44, -31.42)
CIE-LCH	lch(73.71, 34.18, 246.84°)
OKLab	oklab(76.76% -0.0644 -0.0877)
OKLCH	oklch(76.76% 0.109 233.7)
XYZ	xyz(39.5371, 46.2558, 87.7170)
Luminance	0.4626 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BFEE #EE9566

analogous

#66EED9 #66BFEE #667BEE

triadic

#66BFEE #EE66BF #BFEE66

tetradic

#66BFEE #D966EE #EE9566 #7BEE66

square

#66BFEE #D966EE #EE9566 #7BEE66

split-complementary

#66BFEE #EE667B #EED966

monochromatic

#1688C4 #2FA8E8 #66BFEE #9DD6F4 #D4EDFA

Accessibility & contrast

On white

2.05

#66BFEE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.25

#66BFEE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BFEE

10.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BFEE	#FFFFFF	#000000	##000000
##66BFEE	1.00	2.05	10.25	10.25
#FFFFFF	2.05	1.00	21.00	21.00
#000000	10.25	21.00	1.00	1.00
##000000	10.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A8BDF0

Deuteranopia (green-blind)

#95AFED

Tritanopia (blue-blind)

#00CCCF

Achromatopsia (no color)

#B5B5B5

Design tokens & code

CSS

--color: #66bfee;
/* rgb */ color: rgb(102, 191, 238);
/* oklch */ color: oklch(76.8% 0.109 233.7);

Tailwind

colors: {
  custom: {
    50: '#9cd2f3',
    500: '#66bfee',
    950: '#000000',
  },
}

SCSS

$custom: #66bfee;
$custom-light: #9cd2f3;
$custom-dark: #000000;

JSON

{
  "hex": "#66bfee",
  "rgb": {
    "r": 102,
    "g": 191,
    "b": 238
  },
  "hsl": {
    "h": 200.735,
    "s": 80,
    "l": 66.667
  },
  "oklch": {
    "l": 0.76763,
    "c": 0.10885,
    "h": 233.7
  },
  "luminance": 0.46259
}

Semantic roles & 50–950 ramp

primary

#66BFEE

secondary

#EED1C2

accent

#5209DC

background

#FAFCFE

surface

#F4F9FD

border

#CED2D5

text

#0F1417

muted

#7F8285

Preview Lab

Preview with #66BFEE

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

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