#66ACFD#66ACFD

#66ACFD is a light, vivid cyan. Relative luminance 0.394; OKLCH L 73.3% C 0.138 H 253.2°. Best body text is #000000 at 8.88:1 contrast (WCAG AA passes).

Color values

HEX	#66ACFD
RGB	rgb(102, 172, 253)
HSL	hsl(212, 97%, 70%)
HSV	hsv(212, 60%, 99%)
CMYK	cmyk(59.7%, 32%, 0%, 0.8%)
CIE-LAB	lab(69.05, 1.59, -46.80)
CIE-LCH	lch(69.05, 46.82, 271.95°)
OKLab	oklab(73.29% -0.0398 -0.1322)
OKLCH	oklch(73.29% 0.138 253.2)
XYZ	xyz(37.9553, 39.4182, 98.5177)
Luminance	0.3942 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66ACFD #FDB766

analogous

#66F8FD #66ACFD #6B66FD

triadic

#66ACFD #FD66AC #ACFD66

tetradic

#66ACFD #FD66F8 #FDB766 #66FD6B

square

#66ACFD #FD66F8 #FDB766 #66FD6B

split-complementary

#66ACFD #FD6B66 #F8FD66

monochromatic

#036CE6 #2A8BFC #66ACFD #A2CDFE #DFEEFF

Accessibility & contrast

On white

2.36

#66ACFD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.88

#66ACFD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66ACFD

8.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66ACFD	#FFFFFF	#000000	##000000
##66ACFD	1.00	2.36	8.88	8.88
#FFFFFF	2.36	1.00	21.00	21.00
#000000	8.88	21.00	1.00	1.00
##000000	8.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8AB1FF

Deuteranopia (green-blind)

#76A2FB

Tritanopia (blue-blind)

#00BFC9

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #66acfd;
/* rgb */ color: rgb(102, 172, 253);
/* oklch */ color: oklch(73.3% 0.138 253.2);

Tailwind

colors: {
  custom: {
    50: '#9dc4fe',
    500: '#66acfd',
    950: '#000000',
  },
}

SCSS

$custom: #66acfd;
$custom-light: #9dc4fe;
$custom-dark: #000000;

JSON

{
  "hex": "#66acfd",
  "rgb": {
    "r": 102,
    "g": 172,
    "b": 253
  },
  "hsl": {
    "h": 212.185,
    "s": 97.419,
    "l": 69.608
  },
  "oklch": {
    "l": 0.73294,
    "c": 0.13807,
    "h": 253.2
  },
  "luminance": 0.39422
}

Semantic roles & 50–950 ramp

primary

#66ACFD

secondary

#F5E1CA

accent

#7B00E6

background

#FAFCFF

surface

#F4F8FF

border

#CED1D7

text

#0F1218

muted

#7F8186

Preview Lab

Preview with #66ACFD

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

Preview Lab → · Contrast checker → · Palette generator →