#66BBF2#66BBF2

#66BBF2 is a light, moderate cyan. Relative luminance 0.448; OKLCH L 76.0% C 0.114 H 239.1°. Best body text is #000000 at 9.96:1 contrast (WCAG AA passes).

Color values

HEX	#66BBF2
RGB	rgb(102, 187, 242)
HSL	hsl(204, 84%, 67%)
HSV	hsv(204, 58%, 95%)
CMYK	cmyk(57.9%, 22.7%, 0%, 5.1%)
CIE-LAB	lab(72.74, -10.10, -35.08)
CIE-LCH	lch(72.74, 36.51, 253.93°)
OKLab	oklab(76.05% -0.0588 -0.0982)
OKLCH	oklch(76.05% 0.114 239.1)
XYZ	xyz(39.2708, 44.7726, 90.5596)
Luminance	0.4478 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BBF2 #F29D66

analogous

#66F2E3 #66BBF2 #6675F2

triadic

#66BBF2 #F266BB #BBF266

tetradic

#66BBF2 #E366F2 #F29D66 #75F266

square

#66BBF2 #E366F2 #F29D66 #75F266

split-complementary

#66BBF2 #F26675 #F2E366

monochromatic

#1183CC #2EA2ED #66BBF2 #9ED4F7 #D7EDFC

Accessibility & contrast

On white

2.11

#66BBF2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.96

#66BBF2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BBF2

9.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BBF2	#FFFFFF	#000000	##000000
##66BBF2	1.00	2.11	9.96	9.96
#FFFFFF	2.11	1.00	21.00	21.00
#000000	9.96	21.00	1.00	1.00
##000000	9.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A2BBF5

Deuteranopia (green-blind)

#8FACF1

Tritanopia (blue-blind)

#00C9CE

Achromatopsia (no color)

#B2B2B2

Design tokens & code

CSS

--color: #66bbf2;
/* rgb */ color: rgb(102, 187, 242);
/* oklch */ color: oklch(76.0% 0.114 239.1);

Tailwind

colors: {
  custom: {
    50: '#9ccff6',
    500: '#66bbf2',
    950: '#000000',
  },
}

SCSS

$custom: #66bbf2;
$custom-light: #9ccff6;
$custom-dark: #000000;

JSON

{
  "hex": "#66bbf2",
  "rgb": {
    "r": 102,
    "g": 187,
    "b": 242
  },
  "hsl": {
    "h": 203.571,
    "s": 84.337,
    "l": 67.451
  },
  "oklch": {
    "l": 0.76046,
    "c": 0.11449,
    "h": 239.1
  },
  "luminance": 0.44776
}

Semantic roles & 50–950 ramp

primary

#66BBF2

secondary

#F0D5C4

accent

#5B05E1

background

#FAFCFF

surface

#F4F9FE

border

#CED2D6

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #66BBF2

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

Preview Lab → · Contrast checker → · Palette generator →