#66BDFF#66BDFF

#66BDFF is a light, vivid cyan. Relative luminance 0.464; OKLCH L 77.1% C 0.127 H 243.4°. Best body text is #000000 at 10.29:1 contrast (WCAG AA passes).

Color values

HEX	#66BDFF
RGB	rgb(102, 189, 255)
HSL	hsl(206, 100%, 70%)
HSV	hsv(206, 60%, 100%)
CMYK	cmyk(60%, 25.9%, 0%, 0%)
CIE-LAB	lab(73.83, -7.20, -40.40)
CIE-LCH	lch(73.83, 41.04, 259.90°)
OKLab	oklab(77.08% -0.0568 -0.1135)
OKLCH	oklch(77.08% 0.127 243.4)
XYZ	xyz(41.7204, 46.4360, 101.3528)
Luminance	0.4644 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BDFF #FFA866

analogous

#66FFF4 #66BDFF #6671FF

triadic

#66BDFF #FF66BD #BDFF66

tetradic

#66BDFF #F466FF #FFA866 #71FF66

square

#66BDFF #F466FF #FFA866 #71FF66

split-complementary

#66BDFF #FF6671 #FFF466

monochromatic

#0085EB #29A3FF #66BDFF #A3D7FF #E0F2FF

Accessibility & contrast

On white

2.04

#66BDFF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.29

#66BDFF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BDFF

10.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BDFF	#FFFFFF	#000000	##000000
##66BDFF	1.00	2.04	10.29	10.29
#FFFFFF	2.04	1.00	21.00	21.00
#000000	10.29	21.00	1.00	1.00
##000000	10.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A0BEFF

Deuteranopia (green-blind)

#8BAFFE

Tritanopia (blue-blind)

#00CDD4

Achromatopsia (no color)

#B5B5B5

Design tokens & code

CSS

--color: #66bdff;
/* rgb */ color: rgb(102, 189, 255);
/* oklch */ color: oklch(77.1% 0.127 243.4);

Tailwind

colors: {
  custom: {
    50: '#9ed0ff',
    500: '#66bdff',
    950: '#000000',
  },
}

SCSS

$custom: #66bdff;
$custom-light: #9ed0ff;
$custom-dark: #000000;

JSON

{
  "hex": "#66bdff",
  "rgb": {
    "r": 102,
    "g": 189,
    "b": 255
  },
  "hsl": {
    "h": 205.882,
    "s": 100,
    "l": 70
  },
  "oklch": {
    "l": 0.77079,
    "c": 0.12695,
    "h": 243.4
  },
  "luminance": 0.4644
}

Semantic roles & 50–950 ramp

primary

#66BDFF

secondary

#F6DDCB

accent

#6300E6

background

#FAFCFF

surface

#F4F9FF

border

#CED2D7

text

#0F1418

muted

#7F8286

Preview Lab

Preview with #66BDFF

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

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