#66C2FB#66C2FB

#66C2FB is a light, moderate cyan. Relative luminance 0.484; OKLCH L 78.0% C 0.120 H 238.2°. Best body text is #000000 at 10.67:1 contrast (WCAG AA passes).

Color values

HEX	#66C2FB
RGB	rgb(102, 194, 251)
HSL	hsl(203, 95%, 69%)
HSV	hsv(203, 59%, 98%)
CMYK	cmyk(59.4%, 22.7%, 0%, 1.6%)
CIE-LAB	lab(75.06, -11.12, -36.34)
CIE-LCH	lch(75.06, 38.01, 252.99°)
OKLab	oklab(78% -0.0632 -0.1018)
OKLCH	oklch(78% 0.12 238.2)
XYZ	xyz(42.1773, 48.3694, 98.3616)
Luminance	0.4837 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66C2FB #FB9F66

analogous

#66FBE9 #66C2FB #6678FB

triadic

#66C2FB #FB66C2 #C2FB66

tetradic

#66C2FB #E966FB #FB9F66 #78FB66

square

#66C2FB #E966FB #FB9F66 #78FB66

split-complementary

#66C2FB #FB6678 #FBE966

monochromatic

#068DE1 #2AAAF9 #66C2FB #A2DAFD #DDF2FE

Accessibility & contrast

On white

1.97

#66C2FB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.67

#66C2FB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66C2FB

10.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66C2FB	#FFFFFF	#000000	##000000
##66C2FB	1.00	1.97	10.67	10.67
#FFFFFF	1.97	1.00	21.00	21.00
#000000	10.67	21.00	1.00	1.00
##000000	10.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A8C1FE

Deuteranopia (green-blind)

#93B2FA

Tritanopia (blue-blind)

#00D0D5

Achromatopsia (no color)

#B9B9B9

Design tokens & code

CSS

--color: #66c2fb;
/* rgb */ color: rgb(102, 194, 251);
/* oklch */ color: oklch(78.0% 0.120 238.2);

Tailwind

colors: {
  custom: {
    50: '#9dd4fd',
    500: '#66c2fb',
    950: '#000000',
  },
}

SCSS

$custom: #66c2fb;
$custom-light: #9dd4fd;
$custom-dark: #000000;

JSON

{
  "hex": "#66c2fb",
  "rgb": {
    "r": 102,
    "g": 194,
    "b": 251
  },
  "hsl": {
    "h": 202.953,
    "s": 94.904,
    "l": 69.216
  },
  "oklch": {
    "l": 0.77998,
    "c": 0.11987,
    "h": 238.2
  },
  "luminance": 0.48373
}

Semantic roles & 50–950 ramp

primary

#66C2FB

secondary

#F4D9C9

accent

#5800E6

background

#FAFCFF

surface

#F4F9FF

border

#CED2D7

text

#0F1417

muted

#7F8285

Preview Lab

Preview with #66C2FB

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

Preview Lab → · Contrast checker → · Palette generator →