#66C1F2#66C1F2

#66C1F2 is a light, moderate cyan. Relative luminance 0.474; OKLCH L 77.4% C 0.112 H 234.3°. Best body text is #000000 at 10.48:1 contrast (WCAG AA passes).

Color values

HEX	#66C1F2
RGB	rgb(102, 193, 242)
HSL	hsl(201, 84%, 67%)
HSV	hsv(201, 58%, 95%)
CMYK	cmyk(57.9%, 20.2%, 0%, 5.1%)
CIE-LAB	lab(74.43, -13.30, -32.48)
CIE-LCH	lch(74.43, 35.10, 247.72°)
OKLab	oklab(77.38% -0.0652 -0.0907)
OKLCH	oklch(77.38% 0.112 234.3)
XYZ	xyz(40.5704, 47.3717, 90.9928)
Luminance	0.4738 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66C1F2 #F29766

analogous

#66F2DD #66C1F2 #667BF2

triadic

#66C1F2 #F266C1 #C1F266

tetradic

#66C1F2 #DD66F2 #F29766 #7BF266

square

#66C1F2 #DD66F2 #F29766 #7BF266

split-complementary

#66C1F2 #F2667B #F2DD66

monochromatic

#118BCC #2EAAED #66C1F2 #9ED8F7 #D7EFFC

Accessibility & contrast

On white

2.00

#66C1F2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.48

#66C1F2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66C1F2

10.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66C1F2	#FFFFFF	#000000	##000000
##66C1F2	1.00	2.00	10.48	10.48
#FFFFFF	2.00	1.00	21.00	21.00
#000000	10.48	21.00	1.00	1.00
##000000	10.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AABFF4

Deuteranopia (green-blind)

#96B1F1

Tritanopia (blue-blind)

#00CED1

Achromatopsia (no color)

#B7B7B7

Design tokens & code

CSS

--color: #66c1f2;
/* rgb */ color: rgb(102, 193, 242);
/* oklch */ color: oklch(77.4% 0.112 234.3);

Tailwind

colors: {
  custom: {
    50: '#9cd3f6',
    500: '#66c1f2',
    950: '#000000',
  },
}

SCSS

$custom: #66c1f2;
$custom-light: #9cd3f6;
$custom-dark: #000000;

JSON

{
  "hex": "#66c1f2",
  "rgb": {
    "r": 102,
    "g": 193,
    "b": 242
  },
  "hsl": {
    "h": 201,
    "s": 84.337,
    "l": 67.451
  },
  "oklch": {
    "l": 0.77382,
    "c": 0.11173,
    "h": 234.3
  },
  "luminance": 0.47376
}

Semantic roles & 50–950 ramp

primary

#66C1F2

secondary

#F0D3C4

accent

#5205E1

background

#FAFCFF

surface

#F4F9FE

border

#CED2D6

text

#0F1417

muted

#7F8285

Preview Lab

Preview with #66C1F2

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

Preview Lab → · Contrast checker → · Palette generator →