#66BAF5#66BAF5

#66BAF5 is a light, moderate cyan. Relative luminance 0.445; OKLCH L 76.0% C 0.118 H 241.3°. Best body text is #000000 at 9.91:1 contrast (WCAG AA passes).

Color values

HEX	#66BAF5
RGB	rgb(102, 186, 245)
HSL	hsl(205, 88%, 68%)
HSV	hsv(205, 58%, 96%)
CMYK	cmyk(58.4%, 24.1%, 0%, 3.9%)
CIE-LAB	lab(72.58, -8.65, -36.95)
CIE-LCH	lch(72.58, 37.95, 256.82°)
OKLab	oklab(75.96% -0.0568 -0.1036)
OKLCH	oklch(75.96% 0.118 241.3)
XYZ	xyz(39.5137, 44.5315, 92.8816)
Luminance	0.4454 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BAF5 #F5A166

analogous

#66F5E8 #66BAF5 #6672F5

triadic

#66BAF5 #F566BA #BAF566

tetradic

#66BAF5 #E866F5 #F5A166 #72F566

square

#66BAF5 #E866F5 #F5A166 #72F566

split-complementary

#66BAF5 #F56672 #F5E866

monochromatic

#0E82D3 #2DA0F1 #66BAF5 #9FD4F9 #D9EEFD

Accessibility & contrast

On white

2.12

#66BAF5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.91

#66BAF5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BAF5

9.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BAF5	#FFFFFF	#000000	##000000
##66BAF5	1.00	2.12	9.91	9.91
#FFFFFF	2.12	1.00	21.00	21.00
#000000	9.91	21.00	1.00	1.00
##000000	9.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A0BAF8

Deuteranopia (green-blind)

#8CACF4

Tritanopia (blue-blind)

#00C9CE

Achromatopsia (no color)

#B2B2B2

Design tokens & code

CSS

--color: #66baf5;
/* rgb */ color: rgb(102, 186, 245);
/* oklch */ color: oklch(76.0% 0.118 241.3);

Tailwind

colors: {
  custom: {
    50: '#9ccef8',
    500: '#66baf5',
    950: '#000000',
  },
}

SCSS

$custom: #66baf5;
$custom-light: #9ccef8;
$custom-dark: #000000;

JSON

{
  "hex": "#66baf5",
  "rgb": {
    "r": 102,
    "g": 186,
    "b": 245
  },
  "hsl": {
    "h": 204.755,
    "s": 87.73,
    "l": 68.039
  },
  "oklch": {
    "l": 0.75959,
    "c": 0.11815,
    "h": 241.3
  },
  "luminance": 0.44535
}

Semantic roles & 50–950 ramp

primary

#66BAF5

secondary

#F1D8C6

accent

#5F01E4

background

#FAFCFF

surface

#F4F9FF

border

#CED2D7

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #66BAF5

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

Preview Lab → · Contrast checker → · Palette generator →