#66A7F0#66A7F0

#66A7F0 is a light, vivid cyan. Relative luminance 0.368; OKLCH L 71.6% C 0.127 H 252.5°. Best body text is #000000 at 8.35:1 contrast (WCAG AA passes).

Color values

HEX	#66A7F0
RGB	rgb(102, 167, 240)
HSL	hsl(212, 82%, 67%)
HSV	hsv(212, 58%, 94%)
CMYK	cmyk(57.5%, 30.4%, 0%, 5.9%)
CIE-LAB	lab(67.09, 0.31, -42.81)
CIE-LCH	lch(67.09, 42.81, 270.41°)
OKLab	oklab(71.56% -0.0381 -0.1206)
OKLCH	oklch(71.56% 0.127 252.5)
XYZ	xyz(35.0208, 36.7504, 87.6692)
Luminance	0.3675 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66A7F0 #F0AF66

analogous

#66ECF0 #66A7F0 #6A66F0

triadic

#66A7F0 #F066A7 #A7F066

tetradic

#66A7F0 #F066EC #F0AF66 #66F06A

square

#66A7F0 #F066EC #F0AF66 #66F06A

split-complementary

#66A7F0 #F06A66 #ECF066

monochromatic

#1469C8 #2E87EB #66A7F0 #9EC7F5 #D5E7FB

Accessibility & contrast

On white

2.51

#66A7F0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.35

#66A7F0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66A7F0

8.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66A7F0	#FFFFFF	#000000	##000000
##66A7F0	1.00	2.51	8.35	8.35
#FFFFFF	2.51	1.00	21.00	21.00
#000000	8.35	21.00	1.00	1.00
##000000	8.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#89ABF3

Deuteranopia (green-blind)

#769DEF

Tritanopia (blue-blind)

#00B8C1

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #66a7f0;
/* rgb */ color: rgb(102, 167, 240);
/* oklch */ color: oklch(71.6% 0.127 252.5);

Tailwind

colors: {
  custom: {
    50: '#9bc0f5',
    500: '#66a7f0',
    950: '#000000',
  },
}

SCSS

$custom: #66a7f0;
$custom-light: #9bc0f5;
$custom-dark: #000000;

JSON

{
  "hex": "#66a7f0",
  "rgb": {
    "r": 102,
    "g": 167,
    "b": 240
  },
  "hsl": {
    "h": 211.739,
    "s": 82.143,
    "l": 67.059
  },
  "oklch": {
    "l": 0.71562,
    "c": 0.1265,
    "h": 252.5
  },
  "luminance": 0.36753
}

Semantic roles & 50–950 ramp

primary

#66A7F0

secondary

#EFDAC3

accent

#7907DF

background

#FAFBFE

surface

#F4F7FD

border

#CED0D5

text

#0F1217

muted

#7F8185

Preview Lab

Preview with #66A7F0

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

Preview Lab → · Contrast checker → · Palette generator →