#66BEF3#66BEF3

#66BEF3 is a light, moderate cyan. Relative luminance 0.461; OKLCH L 76.8% C 0.114 H 237.2°. Best body text is #000000 at 10.22:1 contrast (WCAG AA passes).

Color values

HEX	#66BEF3
RGB	rgb(102, 190, 243)
HSL	hsl(203, 85%, 68%)
HSV	hsv(203, 58%, 95%)
CMYK	cmyk(58%, 21.8%, 0%, 4.7%)
CIE-LAB	lab(73.62, -11.41, -34.26)
CIE-LCH	lch(73.62, 36.11, 251.58°)
OKLab	oklab(76.76% -0.0617 -0.0958)
OKLCH	oklch(76.76% 0.114 237.2)
XYZ	xyz(40.0645, 46.1190, 91.5671)
Luminance	0.4612 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BEF3 #F39B66

analogous

#66F3E1 #66BEF3 #6677F3

triadic

#66BEF3 #F366BE #BEF366

tetradic

#66BEF3 #E166F3 #F39B66 #77F366

square

#66BEF3 #E166F3 #F39B66 #77F366

split-complementary

#66BEF3 #F36677 #F3E166

monochromatic

#1087CE #2DA6EF #66BEF3 #9FD6F7 #D7EEFC

Accessibility & contrast

On white

2.05

#66BEF3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.22

#66BEF3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BEF3

10.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BEF3	#FFFFFF	#000000	##000000
##66BEF3	1.00	2.05	10.22	10.22
#FFFFFF	2.05	1.00	21.00	21.00
#000000	10.22	21.00	1.00	1.00
##000000	10.22	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A5BDF6

Deuteranopia (green-blind)

#92AFF2

Tritanopia (blue-blind)

#00CCD0

Achromatopsia (no color)

#B5B5B5

Design tokens & code

CSS

--color: #66bef3;
/* rgb */ color: rgb(102, 190, 243);
/* oklch */ color: oklch(76.8% 0.114 237.2);

Tailwind

colors: {
  custom: {
    50: '#9cd1f7',
    500: '#66bef3',
    950: '#000000',
  },
}

SCSS

$custom: #66bef3;
$custom-light: #9cd1f7;
$custom-dark: #000000;

JSON

{
  "hex": "#66bef3",
  "rgb": {
    "r": 102,
    "g": 190,
    "b": 243
  },
  "hsl": {
    "h": 202.553,
    "s": 85.455,
    "l": 67.647
  },
  "oklch": {
    "l": 0.76757,
    "c": 0.11399,
    "h": 237.2
  },
  "luminance": 0.46123
}

Semantic roles & 50–950 ramp

primary

#66BEF3

secondary

#F0D5C5

accent

#5704E2

background

#FAFCFF

surface

#F4F9FE

border

#CED2D6

text

#0F1417

muted

#7F8285

Preview Lab

Preview with #66BEF3

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

Preview Lab → · Contrast checker → · Palette generator →