#66B0F2#66B0F2

#66B0F2 is a light, vivid cyan. Relative luminance 0.403; OKLCH L 73.6% C 0.122 H 247.2°. Best body text is #000000 at 9.06:1 contrast (WCAG AA passes).

Color values

HEX	#66B0F2
RGB	rgb(102, 176, 242)
HSL	hsl(208, 84%, 67%)
HSV	hsv(208, 58%, 95%)
CMYK	cmyk(57.9%, 27.3%, 0%, 5.1%)
CIE-LAB	lab(69.67, -4.10, -39.86)
CIE-LCH	lch(69.67, 40.07, 264.12°)
OKLab	oklab(73.62% -0.0471 -0.112)
OKLCH	oklch(73.62% 0.122 247.2)
XYZ	xyz(37.0260, 40.2829, 89.8113)
Luminance	0.4029 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66B0F2 #F2A866

analogous

#66F2EE #66B0F2 #666AF2

triadic

#66B0F2 #F266B0 #B0F266

tetradic

#66B0F2 #EE66F2 #F2A866 #6AF266

square

#66B0F2 #EE66F2 #F2A866 #6AF266

split-complementary

#66B0F2 #F2666A #F2EE66

monochromatic

#1174CC #2E93ED #66B0F2 #9ECDF7 #D7EAFC

Accessibility & contrast

On white

2.32

#66B0F2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.06

#66B0F2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66B0F2

9.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66B0F2	#FFFFFF	#000000	##000000
##66B0F2	1.00	2.32	9.06	9.06
#FFFFFF	2.32	1.00	21.00	21.00
#000000	9.06	21.00	1.00	1.00
##000000	9.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#94B2F5

Deuteranopia (green-blind)

#81A4F1

Tritanopia (blue-blind)

#00C0C7

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #66b0f2;
/* rgb */ color: rgb(102, 176, 242);
/* oklch */ color: oklch(73.6% 0.122 247.2);

Tailwind

colors: {
  custom: {
    50: '#9cc7f6',
    500: '#66b0f2',
    950: '#000000',
  },
}

SCSS

$custom: #66b0f2;
$custom-light: #9cc7f6;
$custom-dark: #000000;

JSON

{
  "hex": "#66b0f2",
  "rgb": {
    "r": 102,
    "g": 176,
    "b": 242
  },
  "hsl": {
    "h": 208.286,
    "s": 84.337,
    "l": 67.451
  },
  "oklch": {
    "l": 0.73619,
    "c": 0.12154,
    "h": 247.2
  },
  "luminance": 0.40286
}

Semantic roles & 50–950 ramp

primary

#66B0F2

secondary

#F0D9C4

accent

#6C05E1

background

#FAFCFF

surface

#F4F8FE

border

#CED1D6

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #66B0F2

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

Preview Lab → · Contrast checker → · Palette generator →