#66A5CE#66A5CE

#66A5CE is a light, moderate cyan. Relative luminance 0.342; OKLCH L 69.5% C 0.089 H 238.4°. Best body text is #000000 at 7.84:1 contrast (WCAG AA passes).

Color values

HEX	#66A5CE
RGB	rgb(102, 165, 206)
HSL	hsl(204, 51%, 60%)
HSV	hsv(204, 50%, 81%)
CMYK	cmyk(50.5%, 19.9%, 0%, 19.2%)
CIE-LAB	lab(65.11, -8.92, -27.16)
CIE-LCH	lch(65.11, 28.58, 251.82°)
OKLab	oklab(69.54% -0.0465 -0.0756)
OKLCH	oklch(69.54% 0.089 238.4)
XYZ	xyz(30.0712, 34.1889, 63.3950)
Luminance	0.3419 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66A5CE #CE8F66

analogous

#66CEC3 #66A5CE #6671CE

triadic

#66A5CE #CE66A5 #A5CE66

tetradic

#66A5CE #C366CE #CE8F66 #71CE66

square

#66A5CE #C366CE #CE8F66 #71CE66

split-complementary

#66A5CE #CE6671 #CEC366

monochromatic

#2D678D #3C89BB #66A5CE #94C0DD #C3DCEC

Accessibility & contrast

On white

2.68

#66A5CE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.84

#66A5CE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66A5CE

7.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66A5CE	#FFFFFF	#000000	##000000
##66A5CE	1.00	2.68	7.84	7.84
#FFFFFF	2.68	1.00	21.00	21.00
#000000	7.84	21.00	1.00	1.00
##000000	7.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#93A4D0

Deuteranopia (green-blind)

#8499CD

Tritanopia (blue-blind)

#2EAFB3

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #66a5ce;
/* rgb */ color: rgb(102, 165, 206);
/* oklch */ color: oklch(69.5% 0.089 238.4);

Tailwind

colors: {
  custom: {
    50: '#98bfdd',
    500: '#66a5ce',
    950: '#000000',
  },
}

SCSS

$custom: #66a5ce;
$custom-light: #98bfdd;
$custom-dark: #000000;

JSON

{
  "hex": "#66a5ce",
  "rgb": {
    "r": 102,
    "g": 165,
    "b": 206
  },
  "hsl": {
    "h": 203.654,
    "s": 51.485,
    "l": 60.392
  },
  "oklch": {
    "l": 0.69537,
    "c": 0.08874,
    "h": 238.4
  },
  "luminance": 0.34191
}

Semantic roles & 50–950 ramp

primary

#66A5CE

secondary

#DCC4B4

accent

#6327BF

background

#F9FBFD

surface

#F2F7FB

border

#CCD0D4

text

#0E1215

muted

#7E8183

Preview Lab

Preview with #66A5CE

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

Preview Lab → · Contrast checker → · Palette generator →