#64BBFF#64BBFF

#64BBFF is a light, vivid cyan. Relative luminance 0.455; OKLCH L 76.6% C 0.129 H 244.3°. Best body text is #000000 at 10.09:1 contrast (WCAG AA passes).

Color values

HEX	#64BBFF
RGB	rgb(100, 187, 255)
HSL	hsl(206, 100%, 70%)
HSV	hsv(206, 61%, 100%)
CMYK	cmyk(60.8%, 26.7%, 0%, 0%)
CIE-LAB	lab(73.20, -6.47, -41.39)
CIE-LCH	lch(73.20, 41.89, 261.12°)
OKLab	oklab(76.56% -0.0561 -0.1164)
OKLCH	oklch(76.56% 0.129 244.3)
XYZ	xyz(41.0691, 45.4660, 101.1998)
Luminance	0.4547 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64BBFF #FFA864

analogous

#64FFF6 #64BBFF #646DFF

triadic

#64BBFF #FF64BB #BBFF64

tetradic

#64BBFF #F664FF #FFA864 #6DFF64

square

#64BBFF #F664FF #FFA864 #6DFF64

split-complementary

#64BBFF #FF646D #FFF664

monochromatic

#0083E9 #27A0FF #64BBFF #A1D6FF #DEF1FF

Accessibility & contrast

On white

2.08

#64BBFF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.09

#64BBFF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #64BBFF

10.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64BBFF	#FFFFFF	#000000	##000000
##64BBFF	1.00	2.08	10.09	10.09
#FFFFFF	2.08	1.00	21.00	21.00
#000000	10.09	21.00	1.00	1.00
##000000	10.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9DBCFF

Deuteranopia (green-blind)

#88ADFE

Tritanopia (blue-blind)

#00CBD3

Achromatopsia (no color)

#B4B4B4

Design tokens & code

CSS

--color: #64bbff;
/* rgb */ color: rgb(100, 187, 255);
/* oklch */ color: oklch(76.6% 0.129 244.3);

Tailwind

colors: {
  custom: {
    50: '#9ccfff',
    500: '#64bbff',
    950: '#000000',
  },
}

SCSS

$custom: #64bbff;
$custom-light: #9ccfff;
$custom-dark: #000000;

JSON

{
  "hex": "#64bbff",
  "rgb": {
    "r": 100,
    "g": 187,
    "b": 255
  },
  "hsl": {
    "h": 206.323,
    "s": 100,
    "l": 69.608
  },
  "oklch": {
    "l": 0.7656,
    "c": 0.12925,
    "h": 244.3
  },
  "luminance": 0.4547
}

Semantic roles & 50–950 ramp

primary

#64BBFF

secondary

#F6DDC9

accent

#6500E6

background

#FAFCFF

surface

#F4F9FF

border

#CED2D7

text

#0F1318

muted

#7F8286

Preview Lab

Preview with #64BBFF

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

Preview Lab → · Contrast checker → · Palette generator →