#64BDF9#64BDF9

#64BDF9 is a light, vivid cyan. Relative luminance 0.459; OKLCH L 76.7% C 0.122 H 240.4°. Best body text is #000000 at 10.19:1 contrast (WCAG AA passes).

Color values

HEX	#64BDF9
RGB	rgb(100, 189, 249)
HSL	hsl(204, 93%, 68%)
HSV	hsv(204, 60%, 98%)
CMYK	cmyk(59.8%, 24.1%, 0%, 2.4%)
CIE-LAB	lab(73.51, -9.41, -37.68)
CIE-LCH	lch(73.51, 38.84, 255.97°)
OKLab	oklab(76.72% -0.0601 -0.1057)
OKLCH	oklch(76.72% 0.122 240.4)
XYZ	xyz(40.5456, 45.9402, 96.3348)
Luminance	0.4594 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64BDF9 #F9A064

analogous

#64F9EA #64BDF9 #6472F9

triadic

#64BDF9 #F964BD #BDF964

tetradic

#64BDF9 #EA64F9 #F9A064 #72F964

square

#64BDF9 #EA64F9 #F9A064 #72F964

split-complementary

#64BDF9 #F96472 #F9EA64

monochromatic

#0886DA #29A4F7 #64BDF9 #9FD6FB #DAEFFE

Accessibility & contrast

On white

2.06

#64BDF9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.19

#64BDF9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #64BDF9

10.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64BDF9	#FFFFFF	#000000	##000000
##64BDF9	1.00	2.06	10.19	10.19
#FFFFFF	2.06	1.00	21.00	21.00
#000000	10.19	21.00	1.00	1.00
##000000	10.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A2BDFC

Deuteranopia (green-blind)

#8EAEF8

Tritanopia (blue-blind)

#00CCD1

Achromatopsia (no color)

#B5B5B5

Design tokens & code

CSS

--color: #64bdf9;
/* rgb */ color: rgb(100, 189, 249);
/* oklch */ color: oklch(76.7% 0.122 240.4);

Tailwind

colors: {
  custom: {
    50: '#9cd0fb',
    500: '#64bdf9',
    950: '#000000',
  },
}

SCSS

$custom: #64bdf9;
$custom-light: #9cd0fb;
$custom-dark: #000000;

JSON

{
  "hex": "#64bdf9",
  "rgb": {
    "r": 100,
    "g": 189,
    "b": 249
  },
  "hsl": {
    "h": 204.161,
    "s": 92.547,
    "l": 68.431
  },
  "oklch": {
    "l": 0.76723,
    "c": 0.12159,
    "h": 240.4
  },
  "luminance": 0.45944
}

Semantic roles & 50–950 ramp

primary

#64BDF9

secondary

#F3D8C6

accent

#5C00E6

background

#FAFCFF

surface

#F4F9FF

border

#CED2D7

text

#0F1417

muted

#7F8285

Preview Lab

Preview with #64BDF9

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

Preview Lab → · Contrast checker → · Palette generator →