#64B5EC#64B5EC

#64B5EC is a light, moderate cyan. Relative luminance 0.418; OKLCH L 74.4% C 0.113 H 240.3°. Best body text is #000000 at 9.36:1 contrast (WCAG AA passes).

Color values

HEX	#64B5EC
RGB	rgb(100, 181, 236)
HSL	hsl(204, 78%, 66%)
HSV	hsv(204, 58%, 93%)
CMYK	cmyk(57.6%, 23.3%, 0%, 7.5%)
CIE-LAB	lab(70.74, -9.08, -34.94)
CIE-LCH	lch(70.74, 36.10, 255.44°)
OKLab	oklab(74.36% -0.0558 -0.0979)
OKLCH	oklch(74.36% 0.113 240.3)
XYZ	xyz(36.9141, 41.8098, 85.4654)
Luminance	0.4181 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64B5EC #EC9B64

analogous

#64ECDF #64B5EC #6471EC

triadic

#64B5EC #EC64B5 #B5EC64

tetradic

#64B5EC #DF64EC #EC9B64 #71EC64

square

#64B5EC #DF64EC #EC9B64 #71EC64

split-complementary

#64B5EC #EC6471 #ECDF64

monochromatic

#177BBE #2D9BE5 #64B5EC #9BCFF3 #D1E9F9

Accessibility & contrast

On white

2.24

#64B5EC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.36

#64B5EC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #64B5EC

9.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64B5EC	#FFFFFF	#000000	##000000
##64B5EC	1.00	2.24	9.36	9.36
#FFFFFF	2.24	1.00	21.00	21.00
#000000	9.36	21.00	1.00	1.00
##000000	9.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9CB5EF

Deuteranopia (green-blind)

#8AA7EB

Tritanopia (blue-blind)

#00C3C8

Achromatopsia (no color)

#ADADAD

Design tokens & code

CSS

--color: #64b5ec;
/* rgb */ color: rgb(100, 181, 236);
/* oklch */ color: oklch(74.4% 0.113 240.3);

Tailwind

colors: {
  custom: {
    50: '#9acbf2',
    500: '#64b5ec',
    950: '#000000',
  },
}

SCSS

$custom: #64b5ec;
$custom-light: #9acbf2;
$custom-dark: #000000;

JSON

{
  "hex": "#64b5ec",
  "rgb": {
    "r": 100,
    "g": 181,
    "b": 236
  },
  "hsl": {
    "h": 204.265,
    "s": 78.161,
    "l": 65.882
  },
  "oklch": {
    "l": 0.74359,
    "c": 0.11266,
    "h": 240.3
  },
  "luminance": 0.41813
}

Semantic roles & 50–950 ramp

primary

#64B5EC

secondary

#ECD2BF

accent

#5F0BDA

background

#FAFCFE

surface

#F3F8FD

border

#CDD1D5

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #64B5EC

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

Preview Lab → · Contrast checker → · Palette generator →