#64BCDF#64BCDF

#64BCDF is a light, moderate cyan. Relative luminance 0.440; OKLCH L 75.4% C 0.098 H 226.3°. Best body text is #000000 at 9.80:1 contrast (WCAG AA passes).

Color values

HEX	#64BCDF
RGB	rgb(100, 188, 223)
HSL	hsl(197, 66%, 63%)
HSV	hsv(197, 55%, 87%)
CMYK	cmyk(55.2%, 15.7%, 0%, 12.5%)
CIE-LAB	lab(72.23, -16.69, -25.58)
CIE-LCH	lch(72.23, 30.54, 236.87°)
OKLab	oklab(75.38% -0.0679 -0.0711)
OKLCH	oklch(75.38% 0.098 226.3)
XYZ	xyz(36.5529, 44.0002, 76.3643)
Luminance	0.4400 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64BCDF #DF8764

analogous

#64DFC4 #64BCDF #647EDF

triadic

#64BCDF #DF64BC #BCDF64

tetradic

#64BCDF #C464DF #DF8764 #7EDF64

square

#64BCDF #C464DF #DF8764 #7EDF64

split-complementary

#64BCDF #DF647E #DFC464

monochromatic

#2281A6 #31A6D5 #64BCDF #97D2E9 #C9E8F4

Accessibility & contrast

On white

2.14

#64BCDF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.80

#64BCDF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #64BCDF

9.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64BCDF	#FFFFFF	#000000	##000000
##64BCDF	1.00	2.14	9.80	9.80
#FFFFFF	2.14	1.00	21.00	21.00
#000000	9.80	21.00	1.00	1.00
##000000	9.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A9B9E1

Deuteranopia (green-blind)

#97ABDF

Tritanopia (blue-blind)

#00C6C7

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #64bcdf;
/* rgb */ color: rgb(100, 188, 223);
/* oklch */ color: oklch(75.4% 0.098 226.3);

Tailwind

colors: {
  custom: {
    50: '#99d0e9',
    500: '#64bcdf',
    950: '#000000',
  },
}

SCSS

$custom: #64bcdf;
$custom-light: #99d0e9;
$custom-dark: #000000;

JSON

{
  "hex": "#64bcdf",
  "rgb": {
    "r": 100,
    "g": 188,
    "b": 223
  },
  "hsl": {
    "h": 197.073,
    "s": 65.775,
    "l": 63.333
  },
  "oklch": {
    "l": 0.75378,
    "c": 0.09833,
    "h": 226.3
  },
  "luminance": 0.44003
}

Semantic roles & 50–950 ramp

primary

#64BCDF

secondary

#E5C6B9

accent

#4C18CE

background

#F9FCFE

surface

#F2F9FC

border

#CCD2D5

text

#0F1416

muted

#7E8284

Preview Lab

Preview with #64BCDF

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

Preview Lab → · Contrast checker → · Palette generator →