#66BEE8#66BEE8

#66BEE8 is a light, moderate cyan. Relative luminance 0.455; OKLCH L 76.3% C 0.104 H 230.9°. Best body text is #000000 at 10.10:1 contrast (WCAG AA passes).

Color values

HEX	#66BEE8
RGB	rgb(102, 190, 232)
HSL	hsl(199, 74%, 65%)
HSV	hsv(199, 56%, 91%)
CMYK	cmyk(56%, 18.1%, 0%, 9%)
CIE-LAB	lab(73.20, -14.70, -28.96)
CIE-LCH	lch(73.20, 32.47, 243.09°)
OKLab	oklab(76.29% -0.0655 -0.0807)
OKLCH	oklch(76.29% 0.104 230.9)
XYZ	xyz(38.4529, 45.4744, 83.0793)
Luminance	0.4548 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BEE8 #E89066

analogous

#66E8D1 #66BEE8 #667DE8

triadic

#66BEE8 #E866BE #BEE866

tetradic

#66BEE8 #D166E8 #E89066 #7DE866

square

#66BEE8 #D166E8 #E89066 #7DE866

split-complementary

#66BEE8 #E8667D #E8D166

monochromatic

#1C85B8 #31A7E0 #66BEE8 #9BD5F0 #D0EBF8

Accessibility & contrast

On white

2.08

#66BEE8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.10

#66BEE8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BEE8

10.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BEE8	#FFFFFF	#000000	##000000
##66BEE8	1.00	2.08	10.10	10.10
#FFFFFF	2.08	1.00	21.00	21.00
#000000	10.10	21.00	1.00	1.00
##000000	10.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A9BCEA

Deuteranopia (green-blind)

#97AEE7

Tritanopia (blue-blind)

#00CACC

Achromatopsia (no color)

#B4B4B4

Design tokens & code

CSS

--color: #66bee8;
/* rgb */ color: rgb(102, 190, 232);
/* oklch */ color: oklch(76.3% 0.104 230.9);

Tailwind

colors: {
  custom: {
    50: '#9bd1ef',
    500: '#66bee8',
    950: '#000000',
  },
}

SCSS

$custom: #66bee8;
$custom-light: #9bd1ef;
$custom-dark: #000000;

JSON

{
  "hex": "#66bee8",
  "rgb": {
    "r": 102,
    "g": 190,
    "b": 232
  },
  "hsl": {
    "h": 199.385,
    "s": 73.864,
    "l": 65.49
  },
  "oklch": {
    "l": 0.76285,
    "c": 0.1039,
    "h": 230.9
  },
  "luminance": 0.45478
}

Semantic roles & 50–950 ramp

primary

#66BEE8

secondary

#EBCDBF

accent

#5010D6

background

#FAFCFE

surface

#F3F9FD

border

#CDD2D5

text

#0F1416

muted

#7F8284

Preview Lab

Preview with #66BEE8

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

Preview Lab → · Contrast checker → · Palette generator →