#66AEFC#66AEFC

#66AEFC is a light, vivid cyan. Relative luminance 0.401; OKLCH L 73.7% C 0.135 H 251.8°. Best body text is #000000 at 9.02:1 contrast (WCAG AA passes).

Color values

HEX	#66AEFC
RGB	rgb(102, 174, 252)
HSL	hsl(211, 96%, 69%)
HSV	hsv(211, 60%, 99%)
CMYK	cmyk(59.5%, 31%, 0%, 1.2%)
CIE-LAB	lab(69.56, 0.15, -45.47)
CIE-LCH	lch(69.56, 45.47, 270.18°)
OKLab	oklab(73.67% -0.0421 -0.1283)
OKLCH	oklch(73.67% 0.135 251.8)
XYZ	xyz(38.1799, 40.1217, 97.8088)
Luminance	0.4012 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66AEFC #FCB466

analogous

#66F9FC #66AEFC #6966FC

triadic

#66AEFC #FC66AE #AEFC66

tetradic

#66AEFC #FC66F9 #FCB466 #66FC69

square

#66AEFC #FC66F9 #FCB466 #66FC69

split-complementary

#66AEFC #FC6966 #F9FC66

monochromatic

#046FE3 #2A8EFB #66AEFC #A2CEFD #DEEEFE

Accessibility & contrast

On white

2.33

#66AEFC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.02

#66AEFC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66AEFC

9.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66AEFC	#FFFFFF	#000000	##000000
##66AEFC	1.00	2.33	9.02	9.02
#FFFFFF	2.33	1.00	21.00	21.00
#000000	9.02	21.00	1.00	1.00
##000000	9.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8DB2FF

Deuteranopia (green-blind)

#79A3FA

Tritanopia (blue-blind)

#00C0CA

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #66aefc;
/* rgb */ color: rgb(102, 174, 252);
/* oklch */ color: oklch(73.7% 0.135 251.8);

Tailwind

colors: {
  custom: {
    50: '#9dc5fd',
    500: '#66aefc',
    950: '#000000',
  },
}

SCSS

$custom: #66aefc;
$custom-light: #9dc5fd;
$custom-dark: #000000;

JSON

{
  "hex": "#66aefc",
  "rgb": {
    "r": 102,
    "g": 174,
    "b": 252
  },
  "hsl": {
    "h": 211.2,
    "s": 96.154,
    "l": 69.412
  },
  "oklch": {
    "l": 0.73673,
    "c": 0.13506,
    "h": 251.8
  },
  "luminance": 0.40125
}

Semantic roles & 50–950 ramp

primary

#66AEFC

secondary

#F5E0C9

accent

#7700E6

background

#FAFCFF

surface

#F4F8FF

border

#CED1D7

text

#0F1218

muted

#7F8186

Preview Lab

Preview with #66AEFC

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

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