#64B9DD#64B9DD

#64B9DD is a light, moderate cyan. Relative luminance 0.426; OKLCH L 74.6% C 0.097 H 227.8°. Best body text is #000000 at 9.53:1 contrast (WCAG AA passes).

Color values

HEX	#64B9DD
RGB	rgb(100, 185, 221)
HSL	hsl(198, 64%, 63%)
HSV	hsv(198, 55%, 87%)
CMYK	cmyk(54.8%, 16.3%, 0%, 13.3%)
CIE-LAB	lab(71.30, -15.70, -25.91)
CIE-LCH	lch(71.30, 30.30, 238.79°)
OKLab	oklab(74.61% -0.0654 -0.072)
OKLCH	oklch(74.61% 0.097 227.8)
XYZ	xyz(35.6507, 42.6245, 74.7412)
Luminance	0.4263 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64B9DD #DD8864

analogous

#64DDC4 #64B9DD #647CDD

triadic

#64B9DD #DD64B9 #B9DD64

tetradic

#64B9DD #C464DD #DD8864 #7CDD64

square

#64B9DD #C464DD #DD8864 #7CDD64

split-complementary

#64B9DD #DD647C #DDC464

monochromatic

#247DA3 #32A2D2 #64B9DD #96D0E8 #C8E6F3

Accessibility & contrast

On white

2.20

#64B9DD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.53

#64B9DD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #64B9DD

9.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64B9DD	#FFFFFF	#000000	##000000
##64B9DD	1.00	2.20	9.53	9.53
#FFFFFF	2.20	1.00	21.00	21.00
#000000	9.53	21.00	1.00	1.00
##000000	9.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A6B6DF

Deuteranopia (green-blind)

#95A9DD

Tritanopia (blue-blind)

#00C3C5

Achromatopsia (no color)

#AFAFAF

Design tokens & code

CSS

--color: #64b9dd;
/* rgb */ color: rgb(100, 185, 221);
/* oklch */ color: oklch(74.6% 0.097 227.8);

Tailwind

colors: {
  custom: {
    50: '#99cee7',
    500: '#64b9dd',
    950: '#000000',
  },
}

SCSS

$custom: #64b9dd;
$custom-light: #99cee7;
$custom-dark: #000000;

JSON

{
  "hex": "#64b9dd",
  "rgb": {
    "r": 100,
    "g": 185,
    "b": 221
  },
  "hsl": {
    "h": 197.851,
    "s": 64.021,
    "l": 62.941
  },
  "oklch": {
    "l": 0.74614,
    "c": 0.09728,
    "h": 227.8
  },
  "luminance": 0.42628
}

Semantic roles & 50–950 ramp

primary

#64B9DD

secondary

#E4C6B9

accent

#4F1ACC

background

#F9FCFE

surface

#F2F9FC

border

#CCD2D5

text

#0F1316

muted

#7E8284

Preview Lab

Preview with #64B9DD

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

Preview Lab → · Contrast checker → · Palette generator →