#64B8EB#64B8EB

#64B8EB is a light, moderate cyan. Relative luminance 0.430; OKLCH L 75.0% C 0.110 H 237.4°. Best body text is #000000 at 9.60:1 contrast (WCAG AA passes).

Color values

HEX	#64B8EB
RGB	rgb(100, 184, 235)
HSL	hsl(203, 77%, 66%)
HSV	hsv(203, 57%, 92%)
CMYK	cmyk(57.4%, 21.7%, 0%, 7.8%)
CIE-LAB	lab(71.54, -11.00, -33.15)
CIE-LCH	lch(71.54, 34.93, 251.64°)
OKLab	oklab(74.98% -0.0594 -0.0927)
OKLCH	oklch(74.98% 0.11 237.4)
XYZ	xyz(37.3858, 42.9850, 84.9079)
Luminance	0.4299 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64B8EB #EB9764

analogous

#64EBDB #64B8EB #6474EB

triadic

#64B8EB #EB64B8 #B8EB64

tetradic

#64B8EB #DB64EB #EB9764 #74EB64

square

#64B8EB #DB64EB #EB9764 #74EB64

split-complementary

#64B8EB #EB6474 #EBDB64

monochromatic

#187EBC #2E9FE4 #64B8EB #9AD1F2 #D0EAF9

Accessibility & contrast

On white

2.19

#64B8EB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.60

#64B8EB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #64B8EB

9.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64B8EB	#FFFFFF	#000000	##000000
##64B8EB	1.00	2.19	9.60	9.60
#FFFFFF	2.19	1.00	21.00	21.00
#000000	9.60	21.00	1.00	1.00
##000000	9.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A0B7ED

Deuteranopia (green-blind)

#8EA9EA

Tritanopia (blue-blind)

#00C5C9

Achromatopsia (no color)

#AFAFAF

Design tokens & code

CSS

--color: #64b8eb;
/* rgb */ color: rgb(100, 184, 235);
/* oklch */ color: oklch(75.0% 0.110 237.4);

Tailwind

colors: {
  custom: {
    50: '#9acdf1',
    500: '#64b8eb',
    950: '#000000',
  },
}

SCSS

$custom: #64b8eb;
$custom-light: #9acdf1;
$custom-dark: #000000;

JSON

{
  "hex": "#64b8eb",
  "rgb": {
    "r": 100,
    "g": 184,
    "b": 235
  },
  "hsl": {
    "h": 202.667,
    "s": 77.143,
    "l": 65.686
  },
  "oklch": {
    "l": 0.74984,
    "c": 0.11009,
    "h": 237.4
  },
  "luminance": 0.42988
}

Semantic roles & 50–950 ramp

primary

#64B8EB

secondary

#ECD0BF

accent

#5A0CD9

background

#FAFCFE

surface

#F3F9FD

border

#CDD2D5

text

#0F1316

muted

#7F8284

Preview Lab

Preview with #64B8EB

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

Preview Lab → · Contrast checker → · Palette generator →