#66BBCE#66BBCE

#66BBCE is a light, moderate cyan. Relative luminance 0.428; OKLCH L 74.6% C 0.087 H 214.0°. Best body text is #000000 at 9.56:1 contrast (WCAG AA passes).

Color values

HEX	#66BBCE
RGB	rgb(102, 187, 206)
HSL	hsl(191, 51%, 60%)
HSV	hsv(191, 50%, 81%)
CMYK	cmyk(50.5%, 9.2%, 0%, 19.2%)
CIE-LAB	lab(71.43, -20.59, -17.51)
CIE-LCH	lch(71.43, 27.03, 220.39°)
OKLab	oklab(74.57% -0.0719 -0.0484)
OKLCH	oklch(74.57% 0.087 214)
XYZ	xyz(34.3861, 42.8187, 64.8333)
Luminance	0.4282 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BBCE #CE7966

analogous

#66CEAD #66BBCE #6687CE

triadic

#66BBCE #CE66BB #BBCE66

tetradic

#66BBCE #AD66CE #CE7966 #87CE66

square

#66BBCE #AD66CE #CE7966 #87CE66

split-complementary

#66BBCE #CE6687 #CEAD66

monochromatic

#2D7B8D #3CA4BB #66BBCE #94D0DD #C3E4EC

Accessibility & contrast

On white

2.20

#66BBCE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.56

#66BBCE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BBCE

9.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BBCE	#FFFFFF	#000000	##000000
##66BBCE	1.00	2.20	9.56	9.56
#FFFFFF	2.20	1.00	21.00	21.00
#000000	9.56	21.00	1.00	1.00
##000000	9.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ADB6CF

Deuteranopia (green-blind)

#9DAACE

Tritanopia (blue-blind)

#25C3C1

Achromatopsia (no color)

#AFAFAF

Design tokens & code

CSS

--color: #66bbce;
/* rgb */ color: rgb(102, 187, 206);
/* oklch */ color: oklch(74.6% 0.087 214.0);

Tailwind

colors: {
  custom: {
    50: '#99cfdd',
    500: '#66bbce',
    950: '#000000',
  },
}

SCSS

$custom: #66bbce;
$custom-light: #99cfdd;
$custom-dark: #000000;

JSON

{
  "hex": "#66bbce",
  "rgb": {
    "r": 102,
    "g": 187,
    "b": 206
  },
  "hsl": {
    "h": 190.962,
    "s": 51.485,
    "l": 60.392
  },
  "oklch": {
    "l": 0.74569,
    "c": 0.08663,
    "h": 214
  },
  "luminance": 0.42822
}

Semantic roles & 50–950 ramp

primary

#66BBCE

secondary

#DCBBB4

accent

#4227BF

background

#F9FCFD

surface

#F2F9FB

border

#CCD2D4

text

#0E1415

muted

#7E8283

Preview Lab

Preview with #66BBCE

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

Preview Lab → · Contrast checker → · Palette generator →