#64C4EF#64C4EF

#64C4EF is a light, moderate cyan. Relative luminance 0.484; OKLCH L 77.8% C 0.109 H 229.6°. Best body text is #000000 at 10.68:1 contrast (WCAG AA passes).

Color values

HEX	#64C4EF
RGB	rgb(100, 196, 239)
HSL	hsl(199, 81%, 66%)
HSV	hsv(199, 58%, 94%)
CMYK	cmyk(58.2%, 18%, 0%, 6.3%)
CIE-LAB	lab(75.09, -16.15, -29.85)
CIE-LCH	lch(75.09, 33.94, 241.58°)
OKLab	oklab(77.85% -0.0708 -0.0832)
OKLCH	oklch(77.85% 0.109 229.6)
XYZ	xyz(40.5695, 48.4173, 88.8521)
Luminance	0.4842 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64C4EF #EF8F64

analogous

#64EFD5 #64C4EF #647FEF

triadic

#64C4EF #EF64C4 #C4EF64

tetradic

#64C4EF #D564EF #EF8F64 #7FEF64

square

#64C4EF #D564EF #EF8F64 #7FEF64

split-complementary

#64C4EF #EF647F #EFD564

monochromatic

#148EC4 #2DAFE9 #64C4EF #9BD9F5 #D3EEFA

Accessibility & contrast

On white

1.97

#64C4EF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.68

#64C4EF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #64C4EF

10.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64C4EF	#FFFFFF	#000000	##000000
##64C4EF	1.00	1.97	10.68	10.68
#FFFFFF	1.97	1.00	21.00	21.00
#000000	10.68	21.00	1.00	1.00
##000000	10.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AEC1F1

Deuteranopia (green-blind)

#9AB2EE

Tritanopia (blue-blind)

#00D0D2

Achromatopsia (no color)

#B9B9B9

Design tokens & code

CSS

--color: #64c4ef;
/* rgb */ color: rgb(100, 196, 239);
/* oklch */ color: oklch(77.8% 0.109 229.6);

Tailwind

colors: {
  custom: {
    50: '#9bd5f4',
    500: '#64c4ef',
    950: '#000000',
  },
}

SCSS

$custom: #64c4ef;
$custom-light: #9bd5f4;
$custom-dark: #000000;

JSON

{
  "hex": "#64c4ef",
  "rgb": {
    "r": 100,
    "g": 196,
    "b": 239
  },
  "hsl": {
    "h": 198.561,
    "s": 81.287,
    "l": 66.471
  },
  "oklch": {
    "l": 0.7785,
    "c": 0.10927,
    "h": 229.6
  },
  "luminance": 0.48421
}

Semantic roles & 50–950 ramp

primary

#64C4EF

secondary

#EECFC1

accent

#4A08DE

background

#FAFDFE

surface

#F4FAFD

border

#CED3D5

text

#0F1417

muted

#7F8385

Preview Lab

Preview with #64C4EF

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

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