#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
RGB	rgb(102, 183, 250)
HSL	hsl(207, 94%, 69%)
HSV	hsv(207, 59%, 98%)
CMYK	cmyk(59.2%, 26.8%, 0%, 2%)
CIE-LAB	lab(71.95, -5.48, -40.63)
CIE-LCH	lch(71.95, 41.00, 262.33°)
OKLab	oklab(75.53% -0.0521 -0.1142)
OKLCH	oklch(75.53% 0.126 245.5)
XYZ	xyz(39.6619, 43.5902, 96.7475)
Luminance	0.4359 (WCAG relative)
Temperature	cool
Family	cyan

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
##66B7FA	1.00	2.16	9.72	9.72
#FFFFFF	2.16	1.00	21.00	21.00
#000000	9.72	21.00	1.00	1.00
##000000	9.72	21.00	1.00	1.00

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 →