#66AFF0#66AFF0

#66AFF0 is a light, moderate cyan. Relative luminance 0.398; OKLCH L 73.3% C 0.120 H 247.1°. Best body text is #000000 at 8.96:1 contrast (WCAG AA passes).

Color values

HEX	#66AFF0
RGB	rgb(102, 175, 240)
HSL	hsl(208, 82%, 67%)
HSV	hsv(208, 58%, 94%)
CMYK	cmyk(57.5%, 27.1%, 0%, 5.9%)
CIE-LAB	lab(69.31, -4.17, -39.34)
CIE-LCH	lch(69.31, 39.56, 263.95°)
OKLab	oklab(73.3% -0.0466 -0.1105)
OKLCH	oklch(73.3% 0.12 247.1)
XYZ	xyz(36.5319, 39.7727, 88.1729)
Luminance	0.3978 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66AFF0 #F0A766

analogous

#66F0EC #66AFF0 #666AF0

triadic

#66AFF0 #F066AF #AFF066

tetradic

#66AFF0 #EC66F0 #F0A766 #6AF066

square

#66AFF0 #EC66F0 #F0A766 #6AF066

split-complementary

#66AFF0 #F0666A #F0EC66

monochromatic

#1473C8 #2E92EB #66AFF0 #9ECCF5 #D5E9FB

Accessibility & contrast

On white

2.35

#66AFF0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.96

#66AFF0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66AFF0

8.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66AFF0	#FFFFFF	#000000	##000000
##66AFF0	1.00	2.35	8.96	8.96
#FFFFFF	2.35	1.00	21.00	21.00
#000000	8.96	21.00	1.00	1.00
##000000	8.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#93B1F3

Deuteranopia (green-blind)

#81A3EF

Tritanopia (blue-blind)

#00BEC6

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #66aff0;
/* rgb */ color: rgb(102, 175, 240);
/* oklch */ color: oklch(73.3% 0.120 247.1);

Tailwind

colors: {
  custom: {
    50: '#9bc6f5',
    500: '#66aff0',
    950: '#000000',
  },
}

SCSS

$custom: #66aff0;
$custom-light: #9bc6f5;
$custom-dark: #000000;

JSON

{
  "hex": "#66aff0",
  "rgb": {
    "r": 102,
    "g": 175,
    "b": 240
  },
  "hsl": {
    "h": 208.261,
    "s": 82.143,
    "l": 67.059
  },
  "oklch": {
    "l": 0.73305,
    "c": 0.11998,
    "h": 247.1
  },
  "luminance": 0.39776
}

Semantic roles & 50–950 ramp

primary

#66AFF0

secondary

#EFD8C3

accent

#6D07DF

background

#FAFCFE

surface

#F4F8FD

border

#CED1D5

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #66AFF0

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

Preview Lab → · Contrast checker → · Palette generator →