#66A7E7#66A7E7

#66A7E7 is a light, moderate cyan. Relative luminance 0.362; OKLCH L 71.1% C 0.116 H 249.4°. Best body text is #000000 at 8.25:1 contrast (WCAG AA passes).

Color values

HEX	#66A7E7
RGB	rgb(102, 167, 231)
HSL	hsl(210, 73%, 65%)
HSV	hsv(210, 56%, 91%)
CMYK	cmyk(55.8%, 27.7%, 0%, 9.4%)
CIE-LAB	lab(66.69, -2.49, -38.49)
CIE-LCH	lch(66.69, 38.58, 266.29°)
OKLab	oklab(71.12% -0.0407 -0.1082)
OKLCH	oklch(71.12% 0.116 249.4)
XYZ	xyz(33.7168, 36.2289, 80.8019)
Luminance	0.3623 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66A7E7 #E7A666

analogous

#66E7E6 #66A7E7 #6667E7

triadic

#66A7E7 #E766A7 #A7E766

tetradic

#66A7E7 #E666E7 #E7A666 #67E766

square

#66A7E7 #E666E7 #E7A666 #67E766

split-complementary

#66A7E7 #E76667 #E7E666

monochromatic

#1D6AB6 #3189DF #66A7E7 #9BC5EF #D0E4F8

Accessibility & contrast

On white

2.55

#66A7E7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.25

#66A7E7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66A7E7

8.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66A7E7	#FFFFFF	#000000	##000000
##66A7E7	1.00	2.55	8.25	8.25
#FFFFFF	2.55	1.00	21.00	21.00
#000000	8.25	21.00	1.00	1.00
##000000	8.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8CA9EA

Deuteranopia (green-blind)

#7B9DE6

Tritanopia (blue-blind)

#00B6BD

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #66a7e7;
/* rgb */ color: rgb(102, 167, 231);
/* oklch */ color: oklch(71.1% 0.116 249.4);

Tailwind

colors: {
  custom: {
    50: '#9ac0ef',
    500: '#66a7e7',
    950: '#000000',
  },
}

SCSS

$custom: #66a7e7;
$custom-light: #9ac0ef;
$custom-dark: #000000;

JSON

{
  "hex": "#66a7e7",
  "rgb": {
    "r": 102,
    "g": 167,
    "b": 231
  },
  "hsl": {
    "h": 209.767,
    "s": 72.881,
    "l": 65.294
  },
  "oklch": {
    "l": 0.71122,
    "c": 0.11555,
    "h": 249.4
  },
  "luminance": 0.36232
}

Semantic roles & 50–950 ramp

primary

#66A7E7

secondary

#EAD4BF

accent

#7211D5

background

#FAFBFE

surface

#F3F7FD

border

#CDD0D5

text

#0F1216

muted

#7F8184

Preview Lab

Preview with #66A7E7

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

Preview Lab → · Contrast checker → · Palette generator →