#64D9FB#64D9FB

#64D9FB is a very light, moderate cyan. Relative luminance 0.593; OKLCH L 83.1% C 0.115 H 219.9°. Best body text is #000000 at 12.86:1 contrast (WCAG AA passes).

Color values

HEX	#64D9FB
RGB	rgb(100, 217, 251)
HSL	hsl(194, 95%, 69%)
HSV	hsv(194, 60%, 98%)
CMYK	cmyk(60.2%, 13.5%, 0%, 1.6%)
CIE-LAB	lab(81.45, -23.35, -26.51)
CIE-LCH	lch(81.45, 35.32, 228.63°)
OKLab	oklab(83.08% -0.0883 -0.0737)
OKLCH	oklch(83.08% 0.115 219.9)
XYZ	xyz(47.4740, 59.2953, 100.1913)
Luminance	0.5930 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64D9FB #FB8664

analogous

#64FBD2 #64D9FB #648EFB

triadic

#64D9FB #FB64D9 #D9FB64

tetradic

#64D9FB #D264FB #FB8664 #8EFB64

square

#64D9FB #D264FB #FB8664 #8EFB64

split-complementary

#64D9FB #FB648E #FBD264

monochromatic

#06AEDF #28CAF9 #64D9FB #A0E8FD #DBF6FE

Accessibility & contrast

On white

1.63

#64D9FB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.86

#64D9FB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #64D9FB

12.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64D9FB	#FFFFFF	#000000	##000000
##64D9FB	1.00	1.63	12.86	12.86
#FFFFFF	1.63	1.00	21.00	21.00
#000000	12.86	21.00	1.00	1.00
##000000	12.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C4D4FD

Deuteranopia (green-blind)

#AEC3FB

Tritanopia (blue-blind)

#00E4E4

Achromatopsia (no color)

#CACACA

Design tokens & code

CSS

--color: #64d9fb;
/* rgb */ color: rgb(100, 217, 251);
/* oklch */ color: oklch(83.1% 0.115 219.9);

Tailwind

colors: {
  custom: {
    50: '#9de5fc',
    500: '#64d9fb',
    950: '#000000',
  },
}

SCSS

$custom: #64d9fb;
$custom-light: #9de5fc;
$custom-dark: #000000;

JSON

{
  "hex": "#64d9fb",
  "rgb": {
    "r": 100,
    "g": 217,
    "b": 251
  },
  "hsl": {
    "h": 193.51,
    "s": 94.969,
    "l": 68.824
  },
  "oklch": {
    "l": 0.83077,
    "c": 0.11504,
    "h": 219.9
  },
  "luminance": 0.593
}

Semantic roles & 50–950 ramp

primary

#64D9FB

secondary

#D5542E

accent

#3400E6

background

#FCFEFF

surface

#F6FCFF

border

#D0D5D7

text

#101517

muted

#808485

Preview Lab

Preview with #64D9FB

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

Preview Lab → · Contrast checker → · Palette generator →