#66AFFC#66AFFC

#66AFFC is a light, vivid cyan. Relative luminance 0.405; OKLCH L 73.9% C 0.134 H 251.2°. Best body text is #000000 at 9.10:1 contrast (WCAG AA passes).

Color values

HEX	#66AFFC
RGB	rgb(102, 175, 252)
HSL	hsl(211, 96%, 69%)
HSV	hsv(211, 60%, 99%)
CMYK	cmyk(59.5%, 30.6%, 0%, 1.2%)
CIE-LAB	lab(69.83, -0.41, -45.03)
CIE-LCH	lch(69.83, 45.04, 269.47°)
OKLab	oklab(73.89% -0.0432 -0.1271)
OKLCH	oklch(73.89% 0.134 251.2)
XYZ	xyz(38.3738, 40.5095, 97.8734)
Luminance	0.4051 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66AFFC #FCB366

analogous

#66FAFC #66AFFC #6866FC

triadic

#66AFFC #FC66AF #AFFC66

tetradic

#66AFFC #FC66FA #FCB366 #66FC68

square

#66AFFC #FC66FA #FCB366 #66FC68

split-complementary

#66AFFC #FC6866 #FAFC66

monochromatic

#0471E3 #2A90FB #66AFFC #A2CEFD #DEEEFE

Accessibility & contrast

On white

2.31

#66AFFC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.10

#66AFFC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66AFFC

9.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66AFFC	#FFFFFF	#000000	##000000
##66AFFC	1.00	2.31	9.10	9.10
#FFFFFF	2.31	1.00	21.00	21.00
#000000	9.10	21.00	1.00	1.00
##000000	9.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8EB3FF

Deuteranopia (green-blind)

#7AA4FA

Tritanopia (blue-blind)

#00C1CA

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #66affc;
/* rgb */ color: rgb(102, 175, 252);
/* oklch */ color: oklch(73.9% 0.134 251.2);

Tailwind

colors: {
  custom: {
    50: '#9dc6fd',
    500: '#66affc',
    950: '#000000',
  },
}

SCSS

$custom: #66affc;
$custom-light: #9dc6fd;
$custom-dark: #000000;

JSON

{
  "hex": "#66affc",
  "rgb": {
    "r": 102,
    "g": 175,
    "b": 252
  },
  "hsl": {
    "h": 210.8,
    "s": 96.154,
    "l": 69.412
  },
  "oklch": {
    "l": 0.73889,
    "c": 0.13419,
    "h": 251.2
  },
  "luminance": 0.40513
}

Semantic roles & 50–950 ramp

primary

#66AFFC

secondary

#F5DFC9

accent

#7600E6

background

#FAFCFF

surface

#F4F8FF

border

#CED1D7

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #66AFFC

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

Preview Lab → · Contrast checker → · Palette generator →