#64C3EF#64C3EF

#64C3EF is a light, moderate cyan. Relative luminance 0.480; OKLCH L 77.6% C 0.110 H 230.5°. Best body text is #000000 at 10.59:1 contrast (WCAG AA passes).

Color values

HEX	#64C3EF
RGB	rgb(100, 195, 239)
HSL	hsl(199, 81%, 66%)
HSV	hsv(199, 58%, 94%)
CMYK	cmyk(58.2%, 18.4%, 0%, 6.3%)
CIE-LAB	lab(74.80, -15.63, -30.28)
CIE-LCH	lch(74.80, 34.08, 242.70°)
OKLab	oklab(77.63% -0.0697 -0.0845)
OKLCH	oklch(77.63% 0.11 230.5)
XYZ	xyz(40.3446, 47.9677, 88.7772)
Luminance	0.4797 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64C3EF #EF9064

analogous

#64EFD6 #64C3EF #647EEF

triadic

#64C3EF #EF64C3 #C3EF64

tetradic

#64C3EF #D664EF #EF9064 #7EEF64

square

#64C3EF #D664EF #EF9064 #7EEF64

split-complementary

#64C3EF #EF647E #EFD664

monochromatic

#148DC4 #2DAEE9 #64C3EF #9BD8F5 #D3EEFA

Accessibility & contrast

On white

1.98

#64C3EF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.59

#64C3EF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #64C3EF

10.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64C3EF	#FFFFFF	#000000	##000000
##64C3EF	1.00	1.98	10.59	10.59
#FFFFFF	1.98	1.00	21.00	21.00
#000000	10.59	21.00	1.00	1.00
##000000	10.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ADC0F1

Deuteranopia (green-blind)

#99B2EE

Tritanopia (blue-blind)

#00CFD1

Achromatopsia (no color)

#B8B8B8

Design tokens & code

CSS

--color: #64c3ef;
/* rgb */ color: rgb(100, 195, 239);
/* oklch */ color: oklch(77.6% 0.110 230.5);

Tailwind

colors: {
  custom: {
    50: '#9bd5f4',
    500: '#64c3ef',
    950: '#000000',
  },
}

SCSS

$custom: #64c3ef;
$custom-light: #9bd5f4;
$custom-dark: #000000;

JSON

{
  "hex": "#64c3ef",
  "rgb": {
    "r": 100,
    "g": 195,
    "b": 239
  },
  "hsl": {
    "h": 198.993,
    "s": 81.287,
    "l": 66.471
  },
  "oklch": {
    "l": 0.77625,
    "c": 0.10954,
    "h": 230.5
  },
  "luminance": 0.47972
}

Semantic roles & 50–950 ramp

primary

#64C3EF

secondary

#EECFC1

accent

#4C08DE

background

#FAFDFE

surface

#F4FAFD

border

#CED3D5

text

#0F1417

muted

#7F8385

Preview Lab

Preview with #64C3EF

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

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