#64B8FD#64B8FD

#64B8FD is a light, vivid cyan. Relative luminance 0.441; OKLCH L 75.8% C 0.129 H 245.5°. Best body text is #000000 at 9.82:1 contrast (WCAG AA passes).

Color values

HEX	#64B8FD
RGB	rgb(100, 184, 253)
HSL	hsl(207, 97%, 69%)
HSV	hsv(207, 60%, 99%)
CMYK	cmyk(60.5%, 27.3%, 0%, 0.8%)
CIE-LAB	lab(72.28, -5.45, -41.75)
CIE-LCH	lch(72.28, 42.10, 262.56°)
OKLab	oklab(75.81% -0.0537 -0.1175)
OKLCH	oklch(75.81% 0.129 245.5)
XYZ	xyz(40.1191, 44.0783, 99.3032)
Luminance	0.4408 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64B8FD #FDA964

analogous

#64FDF6 #64B8FD #646CFD

triadic

#64B8FD #FD64B8 #B8FD64

tetradic

#64B8FD #F664FD #FDA964 #6CFD64

square

#64B8FD #F664FD #FDA964 #6CFD64

split-complementary

#64B8FD #FD646C #FDF664

monochromatic

#037EE4 #289CFC #64B8FD #A0D4FE #DDEFFF

Accessibility & contrast

On white

2.14

#64B8FD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.82

#64B8FD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #64B8FD

9.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64B8FD	#FFFFFF	#000000	##000000
##64B8FD	1.00	2.14	9.82	9.82
#FFFFFF	2.14	1.00	21.00	21.00
#000000	9.82	21.00	1.00	1.00
##000000	9.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9ABAFF

Deuteranopia (green-blind)

#85ABFC

Tritanopia (blue-blind)

#00C9D0

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #64b8fd;
/* rgb */ color: rgb(100, 184, 253);
/* oklch */ color: oklch(75.8% 0.129 245.5);

Tailwind

colors: {
  custom: {
    50: '#9ccdfe',
    500: '#64b8fd',
    950: '#000000',
  },
}

SCSS

$custom: #64b8fd;
$custom-light: #9ccdfe;
$custom-dark: #000000;

JSON

{
  "hex": "#64b8fd",
  "rgb": {
    "r": 100,
    "g": 184,
    "b": 253
  },
  "hsl": {
    "h": 207.059,
    "s": 97.452,
    "l": 69.216
  },
  "oklch": {
    "l": 0.75809,
    "c": 0.12915,
    "h": 245.5
  },
  "luminance": 0.44082
}

Semantic roles & 50–950 ramp

primary

#64B8FD

secondary

#F5DCC8

accent

#6800E6

background

#FAFCFF

surface

#F4F8FF

border

#CED1D7

text

#0F1318

muted

#7F8286

Preview Lab

Preview with #64B8FD

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

Preview Lab → · Contrast checker → · Palette generator →