#66A0EB#66A0EB

#66A0EB is a light, vivid cyan. Relative luminance 0.340; OKLCH L 69.8% C 0.127 H 255.4°. Best body text is #000000 at 7.79:1 contrast (WCAG AA passes).

Color values

HEX	#66A0EB
RGB	rgb(102, 160, 235)
HSL	hsl(214, 77%, 66%)
HSV	hsv(214, 57%, 92%)
CMYK	cmyk(56.6%, 31.9%, 0%, 7.8%)
CIE-LAB	lab(64.93, 2.72, -43.45)
CIE-LCH	lch(64.93, 43.54, 273.58°)
OKLab	oklab(69.8% -0.0319 -0.1226)
OKLCH	oklch(69.8% 0.127 255.4)
XYZ	xyz(33.0404, 33.9618, 83.3953)
Luminance	0.3397 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66A0EB #EBB166

analogous

#66E2EB #66A0EB #6E66EB

triadic

#66A0EB #EB66A0 #A0EB66

tetradic

#66A0EB #EB66E2 #EBB166 #66EB6E

square

#66A0EB #EB66E2 #EBB166 #66EB6E

split-complementary

#66A0EB #EB6E66 #E2EB66

monochromatic

#1961BE #307EE4 #66A0EB #9CC2F2 #D2E3F9

Accessibility & contrast

On white

2.69

#66A0EB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.79

#66A0EB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66A0EB

7.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66A0EB	#FFFFFF	#000000	##000000
##66A0EB	1.00	2.69	7.79	7.79
#FFFFFF	2.69	1.00	21.00	21.00
#000000	7.79	21.00	1.00	1.00
##000000	7.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#81A5EE

Deuteranopia (green-blind)

#7098E9

Tritanopia (blue-blind)

#00B1BB

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #66a0eb;
/* rgb */ color: rgb(102, 160, 235);
/* oklch */ color: oklch(69.8% 0.127 255.4);

Tailwind

colors: {
  custom: {
    50: '#9bbbf2',
    500: '#66a0eb',
    950: '#000000',
  },
}

SCSS

$custom: #66a0eb;
$custom-light: #9bbbf2;
$custom-dark: #000000;

JSON

{
  "hex": "#66a0eb",
  "rgb": {
    "r": 102,
    "g": 160,
    "b": 235
  },
  "hsl": {
    "h": 213.835,
    "s": 76.879,
    "l": 66.078
  },
  "oklch": {
    "l": 0.69798,
    "c": 0.12665,
    "h": 255.4
  },
  "luminance": 0.33965
}

Semantic roles & 50–950 ramp

primary

#66A0EB

secondary

#ECD9C1

accent

#800CD9

background

#FAFBFE

surface

#F3F6FD

border

#CDD0D5

text

#0F1117

muted

#7F8085

Preview Lab

Preview with #66A0EB

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

Preview Lab → · Contrast checker → · Palette generator →