#64B9F5#64B9F5

#64B9F5 is a light, moderate cyan. Relative luminance 0.440; OKLCH L 75.7% C 0.120 H 241.5°. Best body text is #000000 at 9.80:1 contrast (WCAG AA passes).

Color values

HEX	#64B9F5
RGB	rgb(100, 185, 245)
HSL	hsl(205, 88%, 68%)
HSV	hsv(205, 59%, 96%)
CMYK	cmyk(59.2%, 24.5%, 0%, 3.9%)
CIE-LAB	lab(72.23, -8.49, -37.51)
CIE-LCH	lch(72.23, 38.46, 257.25°)
OKLab	oklab(75.66% -0.0572 -0.1052)
OKLCH	oklch(75.66% 0.12 241.5)
XYZ	xyz(39.0798, 43.9961, 92.8011)
Luminance	0.4400 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64B9F5 #F5A064

analogous

#64F5E9 #64B9F5 #6470F5

triadic

#64B9F5 #F564B9 #B9F564

tetradic

#64B9F5 #E964F5 #F5A064 #70F564

square

#64B9F5 #E964F5 #F5A064 #70F564

split-complementary

#64B9F5 #F56470 #F5E964

monochromatic

#0D80D1 #2B9FF1 #64B9F5 #9DD3F9 #D7EDFC

Accessibility & contrast

On white

2.14

#64B9F5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.80

#64B9F5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #64B9F5

9.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64B9F5	#FFFFFF	#000000	##000000
##64B9F5	1.00	2.14	9.80	9.80
#FFFFFF	2.14	1.00	21.00	21.00
#000000	9.80	21.00	1.00	1.00
##000000	9.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9EB9F8

Deuteranopia (green-blind)

#8BABF4

Tritanopia (blue-blind)

#00C8CD

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #64b9f5;
/* rgb */ color: rgb(100, 185, 245);
/* oklch */ color: oklch(75.7% 0.120 241.5);

Tailwind

colors: {
  custom: {
    50: '#9bcdf8',
    500: '#64b9f5',
    950: '#000000',
  },
}

SCSS

$custom: #64b9f5;
$custom-light: #9bcdf8;
$custom-dark: #000000;

JSON

{
  "hex": "#64b9f5",
  "rgb": {
    "r": 100,
    "g": 185,
    "b": 245
  },
  "hsl": {
    "h": 204.828,
    "s": 87.879,
    "l": 67.647
  },
  "oklch": {
    "l": 0.75656,
    "c": 0.11977,
    "h": 241.5
  },
  "luminance": 0.44
}

Semantic roles & 50–950 ramp

primary

#64B9F5

secondary

#F1D7C4

accent

#5F01E4

background

#FAFCFF

surface

#F4F9FF

border

#CED2D7

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #64B9F5

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

Preview Lab → · Contrast checker → · Palette generator →