#64B4DC#64B4DC

#64B4DC is a light, moderate cyan. Relative luminance 0.405; OKLCH L 73.4% C 0.098 H 231.9°. Best body text is #000000 at 9.10:1 contrast (WCAG AA passes).

Color values

HEX	#64B4DC
RGB	rgb(100, 180, 220)
HSL	hsl(200, 63%, 63%)
HSV	hsv(200, 55%, 86%)
CMYK	cmyk(54.5%, 18.2%, 0%, 13.7%)
CIE-LAB	lab(69.84, -13.35, -27.61)
CIE-LCH	lch(69.84, 30.67, 244.20°)
OKLab	oklab(73.44% -0.0602 -0.0769)
OKLCH	oklch(73.44% 0.098 231.9)
XYZ	xyz(34.4902, 40.5161, 73.6991)
Luminance	0.4052 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64B4DC #DC8C64

analogous

#64DCC8 #64B4DC #6478DC

triadic

#64B4DC #DC64B4 #B4DC64

tetradic

#64B4DC #C864DC #DC8C64 #78DC64

square

#64B4DC #C864DC #DC8C64 #78DC64

split-complementary

#64B4DC #DC6478 #DCC864

monochromatic

#2478A1 #329CD1 #64B4DC #96CCE7 #C8E4F3

Accessibility & contrast

On white

2.31

#64B4DC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.10

#64B4DC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #64B4DC

9.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64B4DC	#FFFFFF	#000000	##000000
##64B4DC	1.00	2.31	9.10	9.10
#FFFFFF	2.31	1.00	21.00	21.00
#000000	9.10	21.00	1.00	1.00
##000000	9.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A0B2DE

Deuteranopia (green-blind)

#8FA5DB

Tritanopia (blue-blind)

#00BFC1

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #64b4dc;
/* rgb */ color: rgb(100, 180, 220);
/* oklch */ color: oklch(73.4% 0.098 231.9);

Tailwind

colors: {
  custom: {
    50: '#98cae7',
    500: '#64b4dc',
    950: '#000000',
  },
}

SCSS

$custom: #64b4dc;
$custom-light: #98cae7;
$custom-dark: #000000;

JSON

{
  "hex": "#64b4dc",
  "rgb": {
    "r": 100,
    "g": 180,
    "b": 220
  },
  "hsl": {
    "h": 200,
    "s": 63.158,
    "l": 62.745
  },
  "oklch": {
    "l": 0.73437,
    "c": 0.09765,
    "h": 231.9
  },
  "luminance": 0.40519
}

Semantic roles & 50–950 ramp

primary

#64B4DC

secondary

#E4C7B8

accent

#551BCB

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #64B4DC

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

Preview Lab → · Contrast checker → · Palette generator →