#66CBFD#66CBFD

#66CBFD is a light, moderate cyan. Relative luminance 0.526; OKLCH L 80.1% C 0.118 H 232.4°. Best body text is #000000 at 11.53:1 contrast (WCAG AA passes).

Color values

HEX	#66CBFD
RGB	rgb(102, 203, 253)
HSL	hsl(200, 97%, 70%)
HSV	hsv(200, 60%, 99%)
CMYK	cmyk(59.7%, 19.8%, 0%, 0.8%)
CIE-LAB	lab(77.65, -15.26, -33.40)
CIE-LCH	lch(77.65, 36.72, 245.45°)
OKLab	oklab(80.08% -0.0719 -0.0933)
OKLCH	oklch(80.08% 0.118 232.4)
XYZ	xyz(44.5582, 52.6242, 100.7187)
Luminance	0.5263 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CBFD #FD9866

analogous

#66FDE4 #66CBFD #667FFD

triadic

#66CBFD #FD66CB #CBFD66

tetradic

#66CBFD #E466FD #FD9866 #7FFD66

square

#66CBFD #E466FD #FD9866 #7FFD66

split-complementary

#66CBFD #FD667F #FDE466

monochromatic

#039BE6 #2AB6FC #66CBFD #A2E0FE #DFF4FF

Accessibility & contrast

On white

1.82

#66CBFD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.53

#66CBFD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CBFD

11.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CBFD	#FFFFFF	#000000	##000000
##66CBFD	1.00	1.82	11.53	11.53
#FFFFFF	1.82	1.00	21.00	21.00
#000000	11.53	21.00	1.00	1.00
##000000	11.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B2C9FF

Deuteranopia (green-blind)

#9DB9FC

Tritanopia (blue-blind)

#00D9DB

Achromatopsia (no color)

#C0C0C0

Design tokens & code

CSS

--color: #66cbfd;
/* rgb */ color: rgb(102, 203, 253);
/* oklch */ color: oklch(80.1% 0.118 232.4);

Tailwind

colors: {
  custom: {
    50: '#9edafe',
    500: '#66cbfd',
    950: '#000000',
  },
}

SCSS

$custom: #66cbfd;
$custom-light: #9edafe;
$custom-dark: #000000;

JSON

{
  "hex": "#66cbfd",
  "rgb": {
    "r": 102,
    "g": 203,
    "b": 253
  },
  "hsl": {
    "h": 199.868,
    "s": 97.419,
    "l": 69.608
  },
  "oklch": {
    "l": 0.80085,
    "c": 0.11783,
    "h": 232.4
  },
  "luminance": 0.52629
}

Semantic roles & 50–950 ramp

primary

#66CBFD

secondary

#D8672F

accent

#4C00E6

background

#FCFEFF

surface

#F6FBFF

border

#D0D4D7

text

#101417

muted

#808385

Preview Lab

Preview with #66CBFD

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

Preview Lab → · Contrast checker → · Palette generator →