#66A6FA#66A6FA

#66A6FA is a light, vivid cyan. Relative luminance 0.370; OKLCH L 71.9% C 0.140 H 255.8°. Best body text is #000000 at 8.40:1 contrast (WCAG AA passes).

Color values

HEX	#66A6FA
RGB	rgb(102, 166, 250)
HSL	hsl(214, 94%, 69%)
HSV	hsv(214, 59%, 98%)
CMYK	cmyk(59.2%, 33.6%, 0%, 2%)
CIE-LAB	lab(67.27, 4.04, -47.97)
CIE-LCH	lch(67.27, 48.14, 274.82°)
OKLab	oklab(71.86% -0.0344 -0.1357)
OKLCH	oklch(71.86% 0.14 255.8)
XYZ	xyz(36.3649, 36.9961, 95.6485)
Luminance	0.3700 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66A6FA #FABA66

analogous

#66F0FA #66A6FA #7066FA

triadic

#66A6FA #FA66A6 #A6FA66

tetradic

#66A6FA #FA66F0 #FABA66 #66FA70

square

#66A6FA #FA66F0 #FABA66 #66FA70

split-complementary

#66A6FA #FA7066 #F0FA66

monochromatic

#0764DE #2B84F8 #66A6FA #A1C8FC #DDEBFE

Accessibility & contrast

On white

2.50

#66A6FA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.40

#66A6FA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66A6FA

8.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66A6FA	#FFFFFF	#000000	##000000
##66A6FA	1.00	2.50	8.40	8.40
#FFFFFF	2.50	1.00	21.00	21.00
#000000	8.40	21.00	1.00	1.00
##000000	8.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#83ACFE

Deuteranopia (green-blind)

#6F9DF8

Tritanopia (blue-blind)

#00B9C4

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #66a6fa;
/* rgb */ color: rgb(102, 166, 250);
/* oklch */ color: oklch(71.9% 0.140 255.8);

Tailwind

colors: {
  custom: {
    50: '#9dc0fc',
    500: '#66a6fa',
    950: '#000000',
  },
}

SCSS

$custom: #66a6fa;
$custom-light: #9dc0fc;
$custom-dark: #000000;

JSON

{
  "hex": "#66a6fa",
  "rgb": {
    "r": 102,
    "g": 166,
    "b": 250
  },
  "hsl": {
    "h": 214.054,
    "s": 93.671,
    "l": 69.02
  },
  "oklch": {
    "l": 0.71857,
    "c": 0.13995,
    "h": 255.8
  },
  "luminance": 0.36999
}

Semantic roles & 50–950 ramp

primary

#66A6FA

secondary

#F4E1C8

accent

#8200E6

background

#FAFBFF

surface

#F4F7FF

border

#CED0D7

text

#0F1217

muted

#7F8185

Preview Lab

Preview with #66A6FA

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

Preview Lab → · Contrast checker → · Palette generator →