#64B8DB#64B8DB

#64B8DB is a light, moderate cyan. Relative luminance 0.421; OKLCH L 74.3% C 0.096 H 227.3°. Best body text is #000000 at 9.42:1 contrast (WCAG AA passes).

Color values

HEX	#64B8DB
RGB	rgb(100, 184, 219)
HSL	hsl(198, 62%, 63%)
HSV	hsv(198, 54%, 86%)
CMYK	cmyk(54.3%, 16%, 0%, 14.1%)
CIE-LAB	lab(70.94, -15.76, -25.37)
CIE-LCH	lch(70.94, 29.86, 238.15°)
OKLab	oklab(74.3% -0.065 -0.0705)
OKLCH	oklch(74.3% 0.096 227.3)
XYZ	xyz(35.1773, 42.1016, 73.2767)
Luminance	0.4210 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64B8DB #DB8764

analogous

#64DBC3 #64B8DB #647CDB

triadic

#64B8DB #DB64B8 #B8DB64

tetradic

#64B8DB #C364DB #DB8764 #7CDB64

square

#64B8DB #C364DB #DB8764 #7CDB64

split-complementary

#64B8DB #DB647C #DBC364

monochromatic

#257CA0 #32A1CF #64B8DB #96CFE7 #C7E5F2

Accessibility & contrast

On white

2.23

#64B8DB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.42

#64B8DB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #64B8DB

9.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64B8DB	#FFFFFF	#000000	##000000
##64B8DB	1.00	2.23	9.42	9.42
#FFFFFF	2.23	1.00	21.00	21.00
#000000	9.42	21.00	1.00	1.00
##000000	9.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A6B5DD

Deuteranopia (green-blind)

#94A8DB

Tritanopia (blue-blind)

#00C2C3

Achromatopsia (no color)

#AEAEAE

Design tokens & code

CSS

--color: #64b8db;
/* rgb */ color: rgb(100, 184, 219);
/* oklch */ color: oklch(74.3% 0.096 227.3);

Tailwind

colors: {
  custom: {
    50: '#99cde6',
    500: '#64b8db',
    950: '#000000',
  },
}

SCSS

$custom: #64b8db;
$custom-light: #99cde6;
$custom-dark: #000000;

JSON

{
  "hex": "#64b8db",
  "rgb": {
    "r": 100,
    "g": 184,
    "b": 219
  },
  "hsl": {
    "h": 197.647,
    "s": 62.304,
    "l": 62.549
  },
  "oklch": {
    "l": 0.74304,
    "c": 0.09589,
    "h": 227.3
  },
  "luminance": 0.42105
}

Semantic roles & 50–950 ramp

primary

#64B8DB

secondary

#E3C4B8

accent

#4F1BCA

background

#F9FCFE

surface

#F2F9FC

border

#CCD2D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #64B8DB

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

Preview Lab → · Contrast checker → · Palette generator →