#66ACF2#66ACF2

#66ACF2 is a light, vivid cyan. Relative luminance 0.387; OKLCH L 72.7% C 0.125 H 249.9°. Best body text is #000000 at 8.75:1 contrast (WCAG AA passes).

Color values

HEX	#66ACF2
RGB	rgb(102, 172, 242)
HSL	hsl(210, 84%, 67%)
HSV	hsv(210, 58%, 95%)
CMYK	cmyk(57.9%, 28.9%, 0%, 5.1%)
CIE-LAB	lab(68.56, -1.88, -41.59)
CIE-LCH	lch(68.56, 41.63, 267.42°)
OKLab	oklab(72.75% -0.0428 -0.1171)
OKLCH	oklch(72.75% 0.125 249.9)
XYZ	xyz(36.2532, 38.7374, 89.5538)
Luminance	0.3874 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66ACF2 #F2AC66

analogous

#66F2F2 #66ACF2 #6666F2

triadic

#66ACF2 #F266AC #ACF266

tetradic

#66ACF2 #F266F2 #F2AC66 #66F266

square

#66ACF2 #F266F2 #F2AC66 #66F266

split-complementary

#66ACF2 #F26666 #F2F266

monochromatic

#116FCC #2E8DED #66ACF2 #9ECBF7 #D7E9FC

Accessibility & contrast

On white

2.40

#66ACF2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.75

#66ACF2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66ACF2

8.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66ACF2	#FFFFFF	#000000	##000000
##66ACF2	1.00	2.40	8.75	8.75
#FFFFFF	2.40	1.00	21.00	21.00
#000000	8.75	21.00	1.00	1.00
##000000	8.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8EAFF5

Deuteranopia (green-blind)

#7CA1F1

Tritanopia (blue-blind)

#00BCC5

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #66acf2;
/* rgb */ color: rgb(102, 172, 242);
/* oklch */ color: oklch(72.7% 0.125 249.9);

Tailwind

colors: {
  custom: {
    50: '#9cc4f6',
    500: '#66acf2',
    950: '#000000',
  },
}

SCSS

$custom: #66acf2;
$custom-light: #9cc4f6;
$custom-dark: #000000;

JSON

{
  "hex": "#66acf2",
  "rgb": {
    "r": 102,
    "g": 172,
    "b": 242
  },
  "hsl": {
    "h": 210,
    "s": 84.337,
    "l": 67.451
  },
  "oklch": {
    "l": 0.72746,
    "c": 0.12468,
    "h": 249.9
  },
  "luminance": 0.38741
}

Semantic roles & 50–950 ramp

primary

#66ACF2

secondary

#F0DAC4

accent

#7305E1

background

#FAFCFF

surface

#F4F8FE

border

#CED1D6

text

#0F1217

muted

#7F8185

Preview Lab

Preview with #66ACF2

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

Preview Lab → · Contrast checker → · Palette generator →