#66B2F5#66B2F5

#66B2F5 is a light, vivid cyan. Relative luminance 0.413; OKLCH L 74.2% C 0.124 H 247.0°. Best body text is #000000 at 9.25:1 contrast (WCAG AA passes).

Color values

HEX	#66B2F5
RGB	rgb(102, 178, 245)
HSL	hsl(208, 88%, 68%)
HSV	hsv(208, 58%, 96%)
CMYK	cmyk(58.4%, 27.3%, 0%, 3.9%)
CIE-LAB	lab(70.35, -4.28, -40.42)
CIE-LCH	lch(70.35, 40.65, 263.96°)
OKLab	oklab(74.2% -0.0483 -0.1137)
OKLCH	oklch(74.2% 0.124 247)
XYZ	xyz(37.8753, 41.2547, 92.3355)
Luminance	0.4126 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66B2F5 #F5A966

analogous

#66F5F1 #66B2F5 #666AF5

triadic

#66B2F5 #F566B2 #B2F566

tetradic

#66B2F5 #F166F5 #F5A966 #6AF566

square

#66B2F5 #F166F5 #F5A966 #6AF566

split-complementary

#66B2F5 #F5666A #F5F166

monochromatic

#0E76D3 #2D95F1 #66B2F5 #9FCFF9 #D9ECFD

Accessibility & contrast

On white

2.27

#66B2F5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.25

#66B2F5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66B2F5

9.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66B2F5	#FFFFFF	#000000	##000000
##66B2F5	1.00	2.27	9.25	9.25
#FFFFFF	2.27	1.00	21.00	21.00
#000000	9.25	21.00	1.00	1.00
##000000	9.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#95B4F8

Deuteranopia (green-blind)

#82A6F4

Tritanopia (blue-blind)

#00C2C9

Achromatopsia (no color)

#ACACAC

Design tokens & code

CSS

--color: #66b2f5;
/* rgb */ color: rgb(102, 178, 245);
/* oklch */ color: oklch(74.2% 0.124 247.0);

Tailwind

colors: {
  custom: {
    50: '#9cc8f8',
    500: '#66b2f5',
    950: '#000000',
  },
}

SCSS

$custom: #66b2f5;
$custom-light: #9cc8f8;
$custom-dark: #000000;

JSON

{
  "hex": "#66b2f5",
  "rgb": {
    "r": 102,
    "g": 178,
    "b": 245
  },
  "hsl": {
    "h": 208.112,
    "s": 87.73,
    "l": 68.039
  },
  "oklch": {
    "l": 0.742,
    "c": 0.12351,
    "h": 247
  },
  "luminance": 0.41258
}

Semantic roles & 50–950 ramp

primary

#66B2F5

secondary

#F1DAC6

accent

#6C01E4

background

#FAFCFF

surface

#F4F8FF

border

#CED1D7

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #66B2F5

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

Preview Lab → · Contrast checker → · Palette generator →