#66A7FB#66A7FB

#66A7FB is a light, vivid cyan. Relative luminance 0.374; OKLCH L 72.1% C 0.140 H 255.5°. Best body text is #000000 at 8.49:1 contrast (WCAG AA passes).

Color values

HEX	#66A7FB
RGB	rgb(102, 167, 251)
HSL	hsl(214, 95%, 69%)
HSV	hsv(214, 59%, 98%)
CMYK	cmyk(59.4%, 33.5%, 0%, 1.6%)
CIE-LAB	lab(67.59, 3.79, -48.01)
CIE-LCH	lch(67.59, 48.16, 274.51°)
OKLab	oklab(72.12% -0.0351 -0.1358)
OKLCH	oklch(72.12% 0.14 255.5)
XYZ	xyz(36.7046, 37.4240, 96.5373)
Luminance	0.3743 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66A7FB #FBBA66

analogous

#66F1FB #66A7FB #7066FB

triadic

#66A7FB #FB66A7 #A7FB66

tetradic

#66A7FB #FB66F1 #FBBA66 #66FB70

square

#66A7FB #FB66F1 #FBBA66 #66FB70

split-complementary

#66A7FB #FB7066 #F1FB66

monochromatic

#0665E1 #2A85F9 #66A7FB #A2C9FD #DDECFE

Accessibility & contrast

On white

2.47

#66A7FB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.49

#66A7FB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66A7FB

8.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66A7FB	#FFFFFF	#000000	##000000
##66A7FB	1.00	2.47	8.49	8.49
#FFFFFF	2.47	1.00	21.00	21.00
#000000	8.49	21.00	1.00	1.00
##000000	8.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#84ACFF

Deuteranopia (green-blind)

#709EF9

Tritanopia (blue-blind)

#00BAC5

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #66a7fb;
/* rgb */ color: rgb(102, 167, 251);
/* oklch */ color: oklch(72.1% 0.140 255.5);

Tailwind

colors: {
  custom: {
    50: '#9dc0fd',
    500: '#66a7fb',
    950: '#000000',
  },
}

SCSS

$custom: #66a7fb;
$custom-light: #9dc0fd;
$custom-dark: #000000;

JSON

{
  "hex": "#66a7fb",
  "rgb": {
    "r": 102,
    "g": 167,
    "b": 251
  },
  "hsl": {
    "h": 213.826,
    "s": 94.904,
    "l": 69.216
  },
  "oklch": {
    "l": 0.72122,
    "c": 0.14025,
    "h": 255.5
  },
  "luminance": 0.37427
}

Semantic roles & 50–950 ramp

primary

#66A7FB

secondary

#F4E1C9

accent

#8100E6

background

#FAFBFF

surface

#F4F7FF

border

#CED0D7

text

#0F1217

muted

#7F8185

Preview Lab

Preview with #66A7FB

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

Preview Lab → · Contrast checker → · Palette generator →