#66B7F7#66B7F7

#66B7F7 is a light, vivid cyan. Relative luminance 0.434; OKLCH L 75.4% C 0.122 H 244.3°. Best body text is #000000 at 9.68:1 contrast (WCAG AA passes).

Color values

HEX	#66B7F7
RGB	rgb(102, 183, 247)
HSL	hsl(206, 90%, 68%)
HSV	hsv(206, 59%, 97%)
CMYK	cmyk(58.7%, 25.9%, 0%, 3.1%)
CIE-LAB	lab(71.83, -6.40, -39.21)
CIE-LCH	lch(71.83, 39.73, 260.72°)
OKLab	oklab(75.39% -0.053 -0.1101)
OKLCH	oklch(75.39% 0.122 244.3)
XYZ	xyz(39.1953, 43.4035, 94.2898)
Luminance	0.4341 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66B7F7 #F7A666

analogous

#66F7EF #66B7F7 #666EF7

triadic

#66B7F7 #F766B7 #B7F766

tetradic

#66B7F7 #EF66F7 #F7A666 #6EF766

square

#66B7F7 #EF66F7 #F7A666 #6EF766

split-complementary

#66B7F7 #F7666E #F7EF66

monochromatic

#0B7DD7 #2C9CF4 #66B7F7 #A0D2FA #DAEEFD

Accessibility & contrast

On white

2.17

#66B7F7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.68

#66B7F7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66B7F7

9.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66B7F7	#FFFFFF	#000000	##000000
##66B7F7	1.00	2.17	9.68	9.68
#FFFFFF	2.17	1.00	21.00	21.00
#000000	9.68	21.00	1.00	1.00
##000000	9.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9BB8FA

Deuteranopia (green-blind)

#88AAF6

Tritanopia (blue-blind)

#00C6CD

Achromatopsia (no color)

#B0B0B0

Design tokens & code

CSS

--color: #66b7f7;
/* rgb */ color: rgb(102, 183, 247);
/* oklch */ color: oklch(75.4% 0.122 244.3);

Tailwind

colors: {
  custom: {
    50: '#9cccfa',
    500: '#66b7f7',
    950: '#000000',
  },
}

SCSS

$custom: #66b7f7;
$custom-light: #9cccfa;
$custom-dark: #000000;

JSON

{
  "hex": "#66b7f7",
  "rgb": {
    "r": 102,
    "g": 183,
    "b": 247
  },
  "hsl": {
    "h": 206.483,
    "s": 90.062,
    "l": 68.431
  },
  "oklch": {
    "l": 0.7539,
    "c": 0.12221,
    "h": 244.3
  },
  "luminance": 0.43407
}

Semantic roles & 50–950 ramp

primary

#66B7F7

secondary

#F2DAC7

accent

#6500E6

background

#FAFCFF

surface

#F4F8FF

border

#CED1D7

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #66B7F7

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

Preview Lab → · Contrast checker → · Palette generator →