#64C9EB#64C9EB

#64C9EB is a light, moderate cyan. Relative luminance 0.505; OKLCH L 78.8% C 0.106 H 222.7°. Best body text is #000000 at 11.10:1 contrast (WCAG AA passes).

Color values

HEX	#64C9EB
RGB	rgb(100, 201, 235)
HSL	hsl(195, 77%, 66%)
HSV	hsv(195, 57%, 92%)
CMYK	cmyk(57.4%, 14.5%, 0%, 7.8%)
CIE-LAB	lab(76.36, -19.91, -25.74)
CIE-LCH	lch(76.36, 32.55, 232.28°)
OKLab	oklab(78.82% -0.0775 -0.0716)
OKLCH	oklch(78.82% 0.106 222.7)
XYZ	xyz(41.1317, 50.4768, 86.1565)
Luminance	0.5048 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64C9EB #EB8664

analogous

#64EBC9 #64C9EB #6485EB

triadic

#64C9EB #EB64C9 #C9EB64

tetradic

#64C9EB #C964EB #EB8664 #85EB64

square

#64C9EB #C964EB #EB8664 #85EB64

split-complementary

#64C9EB #EB6485 #EBC964

monochromatic

#1893BC #2EB6E4 #64C9EB #9ADCF2 #D0EFF9

Accessibility & contrast

On white

1.89

#64C9EB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.10

#64C9EB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #64C9EB

11.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64C9EB	#FFFFFF	#000000	##000000
##64C9EB	1.00	1.89	11.10	11.10
#FFFFFF	1.89	1.00	21.00	21.00
#000000	11.10	21.00	1.00	1.00
##000000	11.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B5C5ED

Deuteranopia (green-blind)

#A2B6EB

Tritanopia (blue-blind)

#00D4D4

Achromatopsia (no color)

#BCBCBC

Design tokens & code

CSS

--color: #64c9eb;
/* rgb */ color: rgb(100, 201, 235);
/* oklch */ color: oklch(78.8% 0.106 222.7);

Tailwind

colors: {
  custom: {
    50: '#9bd9f1',
    500: '#64c9eb',
    950: '#000000',
  },
}

SCSS

$custom: #64c9eb;
$custom-light: #9bd9f1;
$custom-dark: #000000;

JSON

{
  "hex": "#64c9eb",
  "rgb": {
    "r": 100,
    "g": 201,
    "b": 235
  },
  "hsl": {
    "h": 195.111,
    "s": 77.143,
    "l": 65.686
  },
  "oklch": {
    "l": 0.78819,
    "c": 0.10552,
    "h": 222.7
  },
  "luminance": 0.50481
}

Semantic roles & 50–950 ramp

primary

#64C9EB

secondary

#BB5938

accent

#400CD9

background

#FCFEFF

surface

#F5FBFE

border

#CFD4D6

text

#0F1416

muted

#808385

Preview Lab

Preview with #64C9EB

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

Preview Lab → · Contrast checker → · Palette generator →