#66B7FA#66B7FA

#66B7FA is a light, vivid cyan. Relative luminance 0.436; OKLCH L 75.5% C 0.126 H 245.5°. Best body text is #000000 at 9.72:1 contrast (WCAG AA passes).

Color values

HEX#66B7FA
RGBrgb(102, 183, 250)
HSLhsl(207, 94%, 69%)
HSVhsv(207, 59%, 98%)
CMYKcmyk(59.2%, 26.8%, 0%, 2%)
CIE-LABlab(71.95, -5.48, -40.63)
CIE-LCHlch(71.95, 41.00, 262.33°)
OKLaboklab(75.53% -0.0521 -0.1142)
OKLCHoklch(75.53% 0.126 245.5)
XYZxyz(39.6619, 43.5902, 96.7475)
Luminance0.4359 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66B7FA #FAA966
analogous
#66FAF3 #66B7FA #666DFA
triadic
#66B7FA #FA66B7 #B7FA66
tetradic
#66B7FA #F366FA #FAA966 #6DFA66
square
#66B7FA #F366FA #FAA966 #6DFA66
split-complementary
#66B7FA #FA666D #FAF366
monochromatic
#077DDE #2B9BF8 #66B7FA #A1D3FC #DDEFFE

Accessibility & contrast

On white

2.16
#66B7FA on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.72
#66B7FA on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66B7FA
9.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66B7FA#FFFFFF#000000##000000
##66B7FA1.002.169.729.72
#FFFFFF2.161.0021.0021.00
#0000009.7221.001.001.00
##0000009.7221.001.001.00

Color blindness preview

Protanopia (red-blind)
#9AB9FD
Deuteranopia (green-blind)
#86AAF9
Tritanopia (blue-blind)
#00C7CE
Achromatopsia (no color)
#B0B0B0

Design tokens & code

CSS
--color: #66b7fa;
/* rgb */ color: rgb(102, 183, 250);
/* oklch */ color: oklch(75.5% 0.126 245.5);
Tailwind
colors: {
  custom: {
    50: '#9dccfc',
    500: '#66b7fa',
    950: '#000000',
  },
}
SCSS
$custom: #66b7fa;
$custom-light: #9dccfc;
$custom-dark: #000000;
JSON
{
  "hex": "#66b7fa",
  "rgb": {
    "r": 102,
    "g": 183,
    "b": 250
  },
  "hsl": {
    "h": 207.162,
    "s": 93.671,
    "l": 69.02
  },
  "oklch": {
    "l": 0.7553,
    "c": 0.12556,
    "h": 245.5
  },
  "luminance": 0.43594
}

Semantic roles & 50–950 ramp

primary
#66B7FA
secondary
#F4DCC8
accent
#6800E6
background
#FAFCFF
surface
#F4F8FF
border
#CED1D7
text
#0F1317
muted
#7F8285

Preview Lab

Preview with #66B7FA

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

Preview Lab → · Contrast checker → · Palette generator →

#66B7FA Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva