#66B4F7#66B4F7

#66B4F7 is a light, vivid cyan. Relative luminance 0.422; OKLCH L 74.7% C 0.124 H 246.4°. Best body text is #000000 at 9.44:1 contrast (WCAG AA passes).

Color values

HEX	#66B4F7
RGB	rgb(102, 180, 247)
HSL	hsl(208, 90%, 68%)
HSV	hsv(208, 59%, 97%)
CMYK	cmyk(58.7%, 27.1%, 0%, 3.1%)
CIE-LAB	lab(70.99, -4.76, -40.51)
CIE-LCH	lch(70.99, 40.78, 263.30°)
OKLab	oklab(74.73% -0.0498 -0.1139)
OKLCH	oklch(74.73% 0.124 246.4)
XYZ	xyz(38.5831, 42.1792, 94.0858)
Luminance	0.4218 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66B4F7 #F7A966

analogous

#66F7F1 #66B4F7 #666BF7

triadic

#66B4F7 #F766B4 #B4F766

tetradic

#66B4F7 #F166F7 #F7A966 #6BF766

square

#66B4F7 #F166F7 #F7A966 #6BF766

split-complementary

#66B4F7 #F7666B #F7F166

monochromatic

#0B79D7 #2C97F4 #66B4F7 #A0D1FA #DAEDFD

Accessibility & contrast

On white

2.23

#66B4F7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.44

#66B4F7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66B4F7

9.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66B4F7	#FFFFFF	#000000	##000000
##66B4F7	1.00	2.23	9.44	9.44
#FFFFFF	2.23	1.00	21.00	21.00
#000000	9.44	21.00	1.00	1.00
##000000	9.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#97B6FA

Deuteranopia (green-blind)

#84A7F6

Tritanopia (blue-blind)

#00C4CB

Achromatopsia (no color)

#AEAEAE

Design tokens & code

CSS

--color: #66b4f7;
/* rgb */ color: rgb(102, 180, 247);
/* oklch */ color: oklch(74.7% 0.124 246.4);

Tailwind

colors: {
  custom: {
    50: '#9ccafa',
    500: '#66b4f7',
    950: '#000000',
  },
}

SCSS

$custom: #66b4f7;
$custom-light: #9ccafa;
$custom-dark: #000000;

JSON

{
  "hex": "#66b4f7",
  "rgb": {
    "r": 102,
    "g": 180,
    "b": 247
  },
  "hsl": {
    "h": 207.724,
    "s": 90.062,
    "l": 68.431
  },
  "oklch": {
    "l": 0.74732,
    "c": 0.12432,
    "h": 246.4
  },
  "luminance": 0.42183
}

Semantic roles & 50–950 ramp

primary

#66B4F7

secondary

#F2DBC7

accent

#6A00E6

background

#FAFCFF

surface

#F4F8FF

border

#CED1D7

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #66B4F7

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

Preview Lab → · Contrast checker → · Palette generator →