#66B2F0#66B2F0

#66B2F0 is a light, moderate cyan. Relative luminance 0.410; OKLCH L 74.0% C 0.118 H 245.0°. Best body text is #000000 at 9.19:1 contrast (WCAG AA passes).

Color values

HEX	#66B2F0
RGB	rgb(102, 178, 240)
HSL	hsl(207, 82%, 67%)
HSV	hsv(207, 58%, 94%)
CMYK	cmyk(57.5%, 25.8%, 0%, 5.9%)
CIE-LAB	lab(70.14, -5.82, -38.03)
CIE-LCH	lch(70.14, 38.48, 261.30°)
OKLab	oklab(73.96% -0.0499 -0.1068)
OKLCH	oklch(73.96% 0.118 245)
XYZ	xyz(37.1223, 40.9535, 88.3697)
Luminance	0.4096 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66B2F0 #F0A466

analogous

#66F0E9 #66B2F0 #666DF0

triadic

#66B2F0 #F066B2 #B2F066

tetradic

#66B2F0 #E966F0 #F0A466 #6DF066

square

#66B2F0 #E966F0 #F0A466 #6DF066

split-complementary

#66B2F0 #F0666D #F0E966

monochromatic

#1477C8 #2E96EB #66B2F0 #9ECEF5 #D5EAFB

Accessibility & contrast

On white

2.28

#66B2F0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.19

#66B2F0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66B2F0

9.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66B2F0	#FFFFFF	#000000	##000000
##66B2F0	1.00	2.28	9.19	9.19
#FFFFFF	2.28	1.00	21.00	21.00
#000000	9.19	21.00	1.00	1.00
##000000	9.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#97B3F3

Deuteranopia (green-blind)

#85A5EF

Tritanopia (blue-blind)

#00C1C7

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #66b2f0;
/* rgb */ color: rgb(102, 178, 240);
/* oklch */ color: oklch(74.0% 0.118 245.0);

Tailwind

colors: {
  custom: {
    50: '#9cc8f5',
    500: '#66b2f0',
    950: '#000000',
  },
}

SCSS

$custom: #66b2f0;
$custom-light: #9cc8f5;
$custom-dark: #000000;

JSON

{
  "hex": "#66b2f0",
  "rgb": {
    "r": 102,
    "g": 178,
    "b": 240
  },
  "hsl": {
    "h": 206.957,
    "s": 82.143,
    "l": 67.059
  },
  "oklch": {
    "l": 0.73964,
    "c": 0.11783,
    "h": 245
  },
  "luminance": 0.40957
}

Semantic roles & 50–950 ramp

primary

#66B2F0

secondary

#EFD7C3

accent

#6807DF

background

#FAFCFE

surface

#F4F8FD

border

#CED1D5

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #66B2F0

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

Preview Lab → · Contrast checker → · Palette generator →