#66ACDB#66ACDB

#66ACDB is a light, moderate cyan. Relative luminance 0.374; OKLCH L 71.7% C 0.099 H 239.5°. Best body text is #000000 at 8.49:1 contrast (WCAG AA passes).

Color values

HEX	#66ACDB
RGB	rgb(102, 172, 219)
HSL	hsl(204, 62%, 63%)
HSV	hsv(204, 53%, 86%)
CMYK	cmyk(53.4%, 21.5%, 0%, 14.1%)
CIE-LAB	lab(67.61, -8.91, -30.49)
CIE-LCH	lch(67.61, 31.76, 253.72°)
OKLab	oklab(71.68% -0.0501 -0.0851)
OKLCH	oklch(71.68% 0.099 239.5)
XYZ	xyz(33.0135, 37.4415, 72.4913)
Luminance	0.3744 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66ACDB #DB9566

analogous

#66DBD0 #66ACDB #6671DB

triadic

#66ACDB #DB66AC #ACDB66

tetradic

#66ACDB #D066DB #DB9566 #71DB66

square

#66ACDB #D066DB #DB9566 #71DB66

split-complementary

#66ACDB #DB6671 #DBD066

monochromatic

#266FA1 #3491CF #66ACDB #98C7E7 #C9E2F2

Accessibility & contrast

On white

2.47

#66ACDB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.49

#66ACDB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66ACDB

8.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66ACDB	#FFFFFF	#000000	##000000
##66ACDB	1.00	2.47	8.49	8.49
#FFFFFF	2.47	1.00	21.00	21.00
#000000	8.49	21.00	1.00	1.00
##000000	8.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#97ABDD

Deuteranopia (green-blind)

#879FDA

Tritanopia (blue-blind)

#17B8BC

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #66acdb;
/* rgb */ color: rgb(102, 172, 219);
/* oklch */ color: oklch(71.7% 0.099 239.5);

Tailwind

colors: {
  custom: {
    50: '#99c4e6',
    500: '#66acdb',
    950: '#000000',
  },
}

SCSS

$custom: #66acdb;
$custom-light: #99c4e6;
$custom-dark: #000000;

JSON

{
  "hex": "#66acdb",
  "rgb": {
    "r": 102,
    "g": 172,
    "b": 219
  },
  "hsl": {
    "h": 204.103,
    "s": 61.905,
    "l": 62.941
  },
  "oklch": {
    "l": 0.71679,
    "c": 0.09873,
    "h": 239.5
  },
  "luminance": 0.37444
}

Semantic roles & 50–950 ramp

primary

#66ACDB

secondary

#E3CAB9

accent

#621CCA

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1216

muted

#7E8184

Preview Lab

Preview with #66ACDB

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

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