#64BDF4#64BDF4

#64BDF4 is a light, moderate cyan. Relative luminance 0.456; OKLCH L 76.5% C 0.117 H 238.0°. Best body text is #000000 at 10.13:1 contrast (WCAG AA passes).

Color values

HEX	#64BDF4
RGB	rgb(100, 189, 244)
HSL	hsl(203, 87%, 67%)
HSV	hsv(203, 59%, 96%)
CMYK	cmyk(59%, 22.5%, 0%, 4.3%)
CIE-LAB	lab(73.31, -10.95, -35.29)
CIE-LCH	lch(73.31, 36.95, 252.77°)
OKLab	oklab(76.5% -0.0617 -0.0988)
OKLCH	oklch(76.5% 0.117 238)
XYZ	xyz(39.7761, 45.6324, 92.2822)
Luminance	0.4564 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64BDF4 #F49B64

analogous

#64F4E3 #64BDF4 #6475F4

triadic

#64BDF4 #F464BD #BDF464

tetradic

#64BDF4 #E364F4 #F49B64 #75F464

square

#64BDF4 #E364F4 #F49B64 #75F464

split-complementary

#64BDF4 #F46475 #F4E364

monochromatic

#0F85CF #2BA5F0 #64BDF4 #9DD5F8 #D6EEFC

Accessibility & contrast

On white

2.07

#64BDF4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.13

#64BDF4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #64BDF4

10.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64BDF4	#FFFFFF	#000000	##000000
##64BDF4	1.00	2.07	10.13	10.13
#FFFFFF	2.07	1.00	21.00	21.00
#000000	10.13	21.00	1.00	1.00
##000000	10.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A4BCF7

Deuteranopia (green-blind)

#90AEF3

Tritanopia (blue-blind)

#00CBD0

Achromatopsia (no color)

#B4B4B4

Design tokens & code

CSS

--color: #64bdf4;
/* rgb */ color: rgb(100, 189, 244);
/* oklch */ color: oklch(76.5% 0.117 238.0);

Tailwind

colors: {
  custom: {
    50: '#9bd0f8',
    500: '#64bdf4',
    950: '#000000',
  },
}

SCSS

$custom: #64bdf4;
$custom-light: #9bd0f8;
$custom-dark: #000000;

JSON

{
  "hex": "#64bdf4",
  "rgb": {
    "r": 100,
    "g": 189,
    "b": 244
  },
  "hsl": {
    "h": 202.917,
    "s": 86.747,
    "l": 67.451
  },
  "oklch": {
    "l": 0.76498,
    "c": 0.11651,
    "h": 238
  },
  "luminance": 0.45636
}

Semantic roles & 50–950 ramp

primary

#64BDF4

secondary

#F0D5C3

accent

#5802E3

background

#FAFCFF

surface

#F4F9FF

border

#CED2D7

text

#0F1417

muted

#7F8285

Preview Lab

Preview with #64BDF4

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

Preview Lab → · Contrast checker → · Palette generator →