#64B5DB#64B5DB

#64B5DB is a light, moderate cyan. Relative luminance 0.409; OKLCH L 73.6% C 0.097 H 230.3°. Best body text is #000000 at 9.17:1 contrast (WCAG AA passes).

Color values

HEX	#64B5DB
RGB	rgb(100, 181, 219)
HSL	hsl(199, 62%, 63%)
HSV	hsv(199, 54%, 86%)
CMYK	cmyk(54.3%, 17.4%, 0%, 14.1%)
CIE-LAB	lab(70.08, -14.17, -26.68)
CIE-LCH	lch(70.08, 30.21, 242.02°)
OKLab	oklab(73.62% -0.0617 -0.0742)
OKLCH	oklch(73.62% 0.097 230.3)
XYZ	xyz(34.5608, 40.8685, 73.0712)
Luminance	0.4087 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64B5DB #DB8A64

analogous

#64DBC6 #64B5DB #6479DB

triadic

#64B5DB #DB64B5 #B5DB64

tetradic

#64B5DB #C664DB #DB8A64 #79DB64

square

#64B5DB #C664DB #DB8A64 #79DB64

split-complementary

#64B5DB #DB6479 #DBC664

monochromatic

#2578A0 #329DCF #64B5DB #96CDE7 #C7E4F2

Accessibility & contrast

On white

2.29

#64B5DB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.17

#64B5DB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #64B5DB

9.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64B5DB	#FFFFFF	#000000	##000000
##64B5DB	1.00	2.29	9.17	9.17
#FFFFFF	2.29	1.00	21.00	21.00
#000000	9.17	21.00	1.00	1.00
##000000	9.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A2B3DD

Deuteranopia (green-blind)

#91A6DA

Tritanopia (blue-blind)

#00C0C1

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #64b5db;
/* rgb */ color: rgb(100, 181, 219);
/* oklch */ color: oklch(73.6% 0.097 230.3);

Tailwind

colors: {
  custom: {
    50: '#98cbe6',
    500: '#64b5db',
    950: '#000000',
  },
}

SCSS

$custom: #64b5db;
$custom-light: #98cbe6;
$custom-dark: #000000;

JSON

{
  "hex": "#64b5db",
  "rgb": {
    "r": 100,
    "g": 181,
    "b": 219
  },
  "hsl": {
    "h": 199.16,
    "s": 62.304,
    "l": 62.549
  },
  "oklch": {
    "l": 0.73622,
    "c": 0.09651,
    "h": 230.3
  },
  "luminance": 0.40872
}

Semantic roles & 50–950 ramp

primary

#64B5DB

secondary

#E3C6B8

accent

#531BCA

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #64B5DB

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

Preview Lab → · Contrast checker → · Palette generator →