#66A7EA#66A7EA

#66A7EA is a light, moderate cyan. Relative luminance 0.364; OKLCH L 71.3% C 0.119 H 250.5°. Best body text is #000000 at 8.28:1 contrast (WCAG AA passes).

Color values

HEX	#66A7EA
RGB	rgb(102, 167, 234)
HSL	hsl(210, 76%, 66%)
HSV	hsv(210, 56%, 92%)
CMYK	cmyk(56.4%, 28.6%, 0%, 8.2%)
CIE-LAB	lab(66.82, -1.56, -39.94)
CIE-LCH	lch(66.82, 39.97, 267.76°)
OKLab	oklab(71.27% -0.0398 -0.1123)
OKLCH	oklch(71.27% 0.119 250.5)
XYZ	xyz(34.1442, 36.3998, 83.0525)
Luminance	0.3640 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66A7EA #EAA966

analogous

#66E9EA #66A7EA #6766EA

triadic

#66A7EA #EA66A7 #A7EA66

tetradic

#66A7EA #EA66E9 #EAA966 #66EA67

square

#66A7EA #EA66E9 #EAA966 #66EA67

split-complementary

#66A7EA #EA6766 #E9EA66

monochromatic

#1A6ABC #3088E3 #66A7EA #9CC6F1 #D2E5F9

Accessibility & contrast

On white

2.54

#66A7EA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.28

#66A7EA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66A7EA

8.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66A7EA	#FFFFFF	#000000	##000000
##66A7EA	1.00	2.54	8.28	8.28
#FFFFFF	2.54	1.00	21.00	21.00
#000000	8.28	21.00	1.00	1.00
##000000	8.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8BAAED

Deuteranopia (green-blind)

#7A9DE9

Tritanopia (blue-blind)

#00B7BE

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #66a7ea;
/* rgb */ color: rgb(102, 167, 234);
/* oklch */ color: oklch(71.3% 0.119 250.5);

Tailwind

colors: {
  custom: {
    50: '#9bc0f1',
    500: '#66a7ea',
    950: '#000000',
  },
}

SCSS

$custom: #66a7ea;
$custom-light: #9bc0f1;
$custom-dark: #000000;

JSON

{
  "hex": "#66a7ea",
  "rgb": {
    "r": 102,
    "g": 167,
    "b": 234
  },
  "hsl": {
    "h": 210.455,
    "s": 75.862,
    "l": 65.882
  },
  "oklch": {
    "l": 0.71267,
    "c": 0.11917,
    "h": 250.5
  },
  "luminance": 0.36403
}

Semantic roles & 50–950 ramp

primary

#66A7EA

secondary

#ECD6C0

accent

#740DD8

background

#FAFBFE

surface

#F3F7FD

border

#CDD0D5

text

#0F1216

muted

#7F8184

Preview Lab

Preview with #66A7EA

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

Preview Lab → · Contrast checker → · Palette generator →