#64BDDF#64BDDF

#64BDDF is a light, moderate cyan. Relative luminance 0.444; OKLCH L 75.6% C 0.098 H 225.3°. Best body text is #000000 at 9.89:1 contrast (WCAG AA passes).

Color values

HEX	#64BDDF
RGB	rgb(100, 189, 223)
HSL	hsl(197, 66%, 63%)
HSV	hsv(197, 55%, 87%)
CMYK	cmyk(55.2%, 15.2%, 0%, 12.5%)
CIE-LAB	lab(72.51, -17.21, -25.14)
CIE-LCH	lch(72.51, 30.47, 235.60°)
OKLab	oklab(75.61% -0.069 -0.0699)
OKLCH	oklch(75.61% 0.098 225.3)
XYZ	xyz(36.7673, 44.4289, 76.4358)
Luminance	0.4443 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64BDDF #DF8664

analogous

#64DFC3 #64BDDF #647FDF

triadic

#64BDDF #DF64BD #BDDF64

tetradic

#64BDDF #C364DF #DF8664 #7FDF64

square

#64BDDF #C364DF #DF8664 #7FDF64

split-complementary

#64BDDF #DF647F #DFC364

monochromatic

#2282A6 #31A7D5 #64BDDF #97D3E9 #C9E8F4

Accessibility & contrast

On white

2.12

#64BDDF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.89

#64BDDF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #64BDDF

9.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64BDDF	#FFFFFF	#000000	##000000
##64BDDF	1.00	2.12	9.89	9.89
#FFFFFF	2.12	1.00	21.00	21.00
#000000	9.89	21.00	1.00	1.00
##000000	9.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AAB9E1

Deuteranopia (green-blind)

#99ACDF

Tritanopia (blue-blind)

#00C7C8

Achromatopsia (no color)

#B2B2B2

Design tokens & code

CSS

--color: #64bddf;
/* rgb */ color: rgb(100, 189, 223);
/* oklch */ color: oklch(75.6% 0.098 225.3);

Tailwind

colors: {
  custom: {
    50: '#99d1e9',
    500: '#64bddf',
    950: '#000000',
  },
}

SCSS

$custom: #64bddf;
$custom-light: #99d1e9;
$custom-dark: #000000;

JSON

{
  "hex": "#64bddf",
  "rgb": {
    "r": 100,
    "g": 189,
    "b": 223
  },
  "hsl": {
    "h": 196.585,
    "s": 65.775,
    "l": 63.333
  },
  "oklch": {
    "l": 0.75606,
    "c": 0.09821,
    "h": 225.3
  },
  "luminance": 0.44432
}

Semantic roles & 50–950 ramp

primary

#64BDDF

secondary

#E5C6B9

accent

#4A18CE

background

#F9FCFE

surface

#F2F9FC

border

#CCD2D5

text

#0F1416

muted

#7E8284

Preview Lab

Preview with #64BDDF

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

Preview Lab → · Contrast checker → · Palette generator →