#66B2F3#66B2F3

#66B2F3 is a light, vivid cyan. Relative luminance 0.411; OKLCH L 74.1% C 0.121 H 246.2°. Best body text is #000000 at 9.23:1 contrast (WCAG AA passes).

Color values

HEX	#66B2F3
RGB	rgb(102, 178, 243)
HSL	hsl(208, 85%, 68%)
HSV	hsv(208, 58%, 95%)
CMYK	cmyk(58%, 26.7%, 0%, 4.7%)
CIE-LAB	lab(70.27, -4.90, -39.47)
CIE-LCH	lch(70.27, 39.77, 262.93°)
OKLab	oklab(74.11% -0.0489 -0.1109)
OKLCH	oklch(74.11% 0.121 246.2)
XYZ	xyz(37.5716, 41.1332, 90.7362)
Luminance	0.4114 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66B2F3 #F3A766

analogous

#66F3EE #66B2F3 #666BF3

triadic

#66B2F3 #F366B2 #B2F366

tetradic

#66B2F3 #EE66F3 #F3A766 #6BF366

square

#66B2F3 #EE66F3 #F3A766 #6BF366

split-complementary

#66B2F3 #F3666B #F3EE66

monochromatic

#1077CE #2D95EF #66B2F3 #9FCFF7 #D7EBFC

Accessibility & contrast

On white

2.28

#66B2F3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.23

#66B2F3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66B2F3

9.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66B2F3	#FFFFFF	#000000	##000000
##66B2F3	1.00	2.28	9.23	9.23
#FFFFFF	2.28	1.00	21.00	21.00
#000000	9.23	21.00	1.00	1.00
##000000	9.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#96B4F6

Deuteranopia (green-blind)

#83A6F2

Tritanopia (blue-blind)

#00C1C8

Achromatopsia (no color)

#ACACAC

Design tokens & code

CSS

--color: #66b2f3;
/* rgb */ color: rgb(102, 178, 243);
/* oklch */ color: oklch(74.1% 0.121 246.2);

Tailwind

colors: {
  custom: {
    50: '#9cc8f7',
    500: '#66b2f3',
    950: '#000000',
  },
}

SCSS

$custom: #66b2f3;
$custom-light: #9cc8f7;
$custom-dark: #000000;

JSON

{
  "hex": "#66b2f3",
  "rgb": {
    "r": 102,
    "g": 178,
    "b": 243
  },
  "hsl": {
    "h": 207.66,
    "s": 85.455,
    "l": 67.647
  },
  "oklch": {
    "l": 0.74105,
    "c": 0.12122,
    "h": 246.2
  },
  "luminance": 0.41137
}

Semantic roles & 50–950 ramp

primary

#66B2F3

secondary

#F0D9C5

accent

#6A04E2

background

#FAFCFF

surface

#F4F8FE

border

#CED1D6

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #66B2F3

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

Preview Lab → · Contrast checker → · Palette generator →