#64B4DB#64B4DB

#64B4DB is a light, moderate cyan. Relative luminance 0.405; OKLCH L 73.4% C 0.097 H 231.3°. Best body text is #000000 at 9.09:1 contrast (WCAG AA passes).

Color values

HEX	#64B4DB
RGB	rgb(100, 180, 219)
HSL	hsl(200, 62%, 63%)
HSV	hsv(200, 54%, 86%)
CMYK	cmyk(54.3%, 17.8%, 0%, 14.1%)
CIE-LAB	lab(69.80, -13.64, -27.12)
CIE-LCH	lch(69.80, 30.36, 243.30°)
OKLab	oklab(73.4% -0.0605 -0.0755)
OKLCH	oklch(73.4% 0.097 231.3)
XYZ	xyz(34.3582, 40.4633, 73.0037)
Luminance	0.4047 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64B4DB #DB8B64

analogous

#64DBC7 #64B4DB #6478DB

triadic

#64B4DB #DB64B4 #B4DB64

tetradic

#64B4DB #C764DB #DB8B64 #78DB64

square

#64B4DB #C764DB #DB8B64 #78DB64

split-complementary

#64B4DB #DB6478 #DBC764

monochromatic

#2577A0 #329CCF #64B4DB #96CCE7 #C7E4F2

Accessibility & contrast

On white

2.31

#64B4DB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.09

#64B4DB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #64B4DB

9.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64B4DB	#FFFFFF	#000000	##000000
##64B4DB	1.00	2.31	9.09	9.09
#FFFFFF	2.31	1.00	21.00	21.00
#000000	9.09	21.00	1.00	1.00
##000000	9.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A1B2DD

Deuteranopia (green-blind)

#90A5DA

Tritanopia (blue-blind)

#00BFC1

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #64b4db;
/* rgb */ color: rgb(100, 180, 219);
/* oklch */ color: oklch(73.4% 0.097 231.3);

Tailwind

colors: {
  custom: {
    50: '#98cae6',
    500: '#64b4db',
    950: '#000000',
  },
}

SCSS

$custom: #64b4db;
$custom-light: #98cae6;
$custom-dark: #000000;

JSON

{
  "hex": "#64b4db",
  "rgb": {
    "r": 100,
    "g": 180,
    "b": 219
  },
  "hsl": {
    "h": 199.664,
    "s": 62.304,
    "l": 62.549
  },
  "oklch": {
    "l": 0.73395,
    "c": 0.09677,
    "h": 231.3
  },
  "luminance": 0.40466
}

Semantic roles & 50–950 ramp

primary

#64B4DB

secondary

#E3C6B8

accent

#551BCA

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #64B4DB

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

Preview Lab → · Contrast checker → · Palette generator →