#64B4FD#64B4FD

#64B4FD is a light, vivid cyan. Relative luminance 0.424; OKLCH L 74.9% C 0.132 H 248.0°. Best body text is #000000 at 9.49:1 contrast (WCAG AA passes).

Color values

HEX	#64B4FD
RGB	rgb(100, 180, 253)
HSL	hsl(209, 97%, 69%)
HSV	hsv(209, 60%, 99%)
CMYK	cmyk(60.5%, 28.9%, 0%, 0.8%)
CIE-LAB	lab(71.17, -3.25, -43.48)
CIE-LCH	lch(71.17, 43.60, 265.72°)
OKLab	oklab(74.94% -0.0495 -0.1225)
OKLCH	oklch(74.94% 0.132 248)
XYZ	xyz(39.2999, 42.4400, 99.0301)
Luminance	0.4244 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64B4FD #FDAD64

analogous

#64FDF9 #64B4FD #6468FD

triadic

#64B4FD #FD64B4 #B4FD64

tetradic

#64B4FD #F964FD #FDAD64 #68FD64

square

#64B4FD #F964FD #FDAD64 #68FD64

split-complementary

#64B4FD #FD6468 #FDF964

monochromatic

#0378E4 #2897FC #64B4FD #A0D1FE #DDEEFF

Accessibility & contrast

On white

2.21

#64B4FD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.49

#64B4FD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #64B4FD

9.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64B4FD	#FFFFFF	#000000	##000000
##64B4FD	1.00	2.21	9.49	9.49
#FFFFFF	2.21	1.00	21.00	21.00
#000000	9.49	21.00	1.00	1.00
##000000	9.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#95B7FF

Deuteranopia (green-blind)

#80A8FC

Tritanopia (blue-blind)

#00C5CE

Achromatopsia (no color)

#AEAEAE

Design tokens & code

CSS

--color: #64b4fd;
/* rgb */ color: rgb(100, 180, 253);
/* oklch */ color: oklch(74.9% 0.132 248.0);

Tailwind

colors: {
  custom: {
    50: '#9ccafe',
    500: '#64b4fd',
    950: '#000000',
  },
}

SCSS

$custom: #64b4fd;
$custom-light: #9ccafe;
$custom-dark: #000000;

JSON

{
  "hex": "#64b4fd",
  "rgb": {
    "r": 100,
    "g": 180,
    "b": 253
  },
  "hsl": {
    "h": 208.627,
    "s": 97.452,
    "l": 69.216
  },
  "oklch": {
    "l": 0.74936,
    "c": 0.13216,
    "h": 248
  },
  "luminance": 0.42444
}

Semantic roles & 50–950 ramp

primary

#64B4FD

secondary

#F5DDC8

accent

#6D00E6

background

#FAFCFF

surface

#F4F8FF

border

#CED1D7

text

#0F1318

muted

#7F8286

Preview Lab

Preview with #64B4FD

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

Preview Lab → · Contrast checker → · Palette generator →