#64B9EB#64B9EB

#64B9EB is a light, moderate cyan. Relative luminance 0.434; OKLCH L 75.2% C 0.110 H 236.5°. Best body text is #000000 at 9.68:1 contrast (WCAG AA passes).

Color values

HEX	#64B9EB
RGB	rgb(100, 185, 235)
HSL	hsl(202, 77%, 66%)
HSV	hsv(202, 57%, 92%)
CMYK	cmyk(57.4%, 21.3%, 0%, 7.8%)
CIE-LAB	lab(71.83, -11.54, -32.71)
CIE-LCH	lch(71.83, 34.69, 250.57°)
OKLab	oklab(75.21% -0.0604 -0.0914)
OKLCH	oklch(75.21% 0.11 236.5)
XYZ	xyz(37.5943, 43.4019, 84.9774)
Luminance	0.4340 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64B9EB #EB9664

analogous

#64EBD9 #64B9EB #6475EB

triadic

#64B9EB #EB64B9 #B9EB64

tetradic

#64B9EB #D964EB #EB9664 #75EB64

square

#64B9EB #D964EB #EB9664 #75EB64

split-complementary

#64B9EB #EB6475 #EBD964

monochromatic

#1880BC #2EA1E4 #64B9EB #9AD1F2 #D0EAF9

Accessibility & contrast

On white

2.17

#64B9EB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.68

#64B9EB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #64B9EB

9.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64B9EB	#FFFFFF	#000000	##000000
##64B9EB	1.00	2.17	9.68	9.68
#FFFFFF	2.17	1.00	21.00	21.00
#000000	9.68	21.00	1.00	1.00
##000000	9.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A2B8ED

Deuteranopia (green-blind)

#8FAAEA

Tritanopia (blue-blind)

#00C6CA

Achromatopsia (no color)

#B0B0B0

Design tokens & code

CSS

--color: #64b9eb;
/* rgb */ color: rgb(100, 185, 235);
/* oklch */ color: oklch(75.2% 0.110 236.5);

Tailwind

colors: {
  custom: {
    50: '#9acef1',
    500: '#64b9eb',
    950: '#000000',
  },
}

SCSS

$custom: #64b9eb;
$custom-light: #9acef1;
$custom-dark: #000000;

JSON

{
  "hex": "#64b9eb",
  "rgb": {
    "r": 100,
    "g": 185,
    "b": 235
  },
  "hsl": {
    "h": 202.222,
    "s": 77.143,
    "l": 65.686
  },
  "oklch": {
    "l": 0.75208,
    "c": 0.10962,
    "h": 236.5
  },
  "luminance": 0.43405
}

Semantic roles & 50–950 ramp

primary

#64B9EB

secondary

#ECD0BF

accent

#580CD9

background

#FAFCFE

surface

#F3F9FD

border

#CDD2D5

text

#0F1316

muted

#7F8284

Preview Lab

Preview with #64B9EB

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

Preview Lab → · Contrast checker → · Palette generator →