#64C9EE#64C9EE

#64C9EE is a light, moderate cyan. Relative luminance 0.507; OKLCH L 78.9% C 0.108 H 224.7°. Best body text is #000000 at 11.13:1 contrast (WCAG AA passes).

Color values

HEX	#64C9EE
RGB	rgb(100, 201, 238)
HSL	hsl(196, 80%, 66%)
HSV	hsv(196, 58%, 93%)
CMYK	cmyk(58%, 15.5%, 0%, 6.7%)
CIE-LAB	lab(76.47, -19.04, -27.19)
CIE-LCH	lch(76.47, 33.19, 235.00°)
OKLab	oklab(78.94% -0.0764 -0.0757)
OKLCH	oklch(78.94% 0.108 224.7)
XYZ	xyz(41.5688, 50.6517, 88.4584)
Luminance	0.5066 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64C9EE #EE8964

analogous

#64EECE #64C9EE #6484EE

triadic

#64C9EE #EE64C9 #C9EE64

tetradic

#64C9EE #CE64EE #EE8964 #84EE64

square

#64C9EE #CE64EE #EE8964 #84EE64

split-complementary

#64C9EE #EE6484 #EECE64

monochromatic

#1594C2 #2DB6E8 #64C9EE #9BDCF4 #D2EFFA

Accessibility & contrast

On white

1.89

#64C9EE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.13

#64C9EE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #64C9EE

11.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64C9EE	#FFFFFF	#000000	##000000
##64C9EE	1.00	1.89	11.13	11.13
#FFFFFF	1.89	1.00	21.00	21.00
#000000	11.13	21.00	1.00	1.00
##000000	11.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B4C5F0

Deuteranopia (green-blind)

#A1B6EE

Tritanopia (blue-blind)

#00D4D5

Achromatopsia (no color)

#BDBDBD

Design tokens & code

CSS

--color: #64c9ee;
/* rgb */ color: rgb(100, 201, 238);
/* oklch */ color: oklch(78.9% 0.108 224.7);

Tailwind

colors: {
  custom: {
    50: '#9bd9f3',
    500: '#64c9ee',
    950: '#000000',
  },
}

SCSS

$custom: #64c9ee;
$custom-light: #9bd9f3;
$custom-dark: #000000;

JSON

{
  "hex": "#64c9ee",
  "rgb": {
    "r": 100,
    "g": 201,
    "b": 238
  },
  "hsl": {
    "h": 196.087,
    "s": 80.233,
    "l": 66.275
  },
  "oklch": {
    "l": 0.78939,
    "c": 0.10756,
    "h": 224.7
  },
  "luminance": 0.50656
}

Semantic roles & 50–950 ramp

primary

#64C9EE

secondary

#C05B36

accent

#4209DD

background

#FCFEFF

surface

#F5FBFE

border

#CFD4D6

text

#0F1417

muted

#808385

Preview Lab

Preview with #64C9EE

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

Preview Lab → · Contrast checker → · Palette generator →