#64B7EF#64B7EF

#64B7EF is a light, moderate cyan. Relative luminance 0.428; OKLCH L 74.9% C 0.115 H 240.2°. Best body text is #000000 at 9.56:1 contrast (WCAG AA passes).

Color values

HEX	#64B7EF
RGB	rgb(100, 183, 239)
HSL	hsl(204, 81%, 66%)
HSV	hsv(204, 58%, 94%)
CMYK	cmyk(58.2%, 23.4%, 0%, 6.3%)
CIE-LAB	lab(71.42, -9.24, -35.51)
CIE-LCH	lch(71.42, 36.69, 255.41°)
OKLab	oklab(74.94% -0.057 -0.0995)
OKLCH	oklch(74.94% 0.115 240.2)
XYZ	xyz(37.7632, 42.8048, 87.9167)
Luminance	0.4281 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64B7EF #EF9C64

analogous

#64EFE2 #64B7EF #6472EF

triadic

#64B7EF #EF64B7 #B7EF64

tetradic

#64B7EF #E264EF #EF9C64 #72EF64

square

#64B7EF #E264EF #EF9C64 #72EF64

split-complementary

#64B7EF #EF6472 #EFE264

monochromatic

#147DC4 #2D9DE9 #64B7EF #9BD1F5 #D3EBFA

Accessibility & contrast

On white

2.20

#64B7EF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.56

#64B7EF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #64B7EF

9.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64B7EF	#FFFFFF	#000000	##000000
##64B7EF	1.00	2.20	9.56	9.56
#FFFFFF	2.20	1.00	21.00	21.00
#000000	9.56	21.00	1.00	1.00
##000000	9.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9EB7F2

Deuteranopia (green-blind)

#8BA9EE

Tritanopia (blue-blind)

#00C5CA

Achromatopsia (no color)

#AFAFAF

Design tokens & code

CSS

--color: #64b7ef;
/* rgb */ color: rgb(100, 183, 239);
/* oklch */ color: oklch(74.9% 0.115 240.2);

Tailwind

colors: {
  custom: {
    50: '#9bccf4',
    500: '#64b7ef',
    950: '#000000',
  },
}

SCSS

$custom: #64b7ef;
$custom-light: #9bccf4;
$custom-dark: #000000;

JSON

{
  "hex": "#64b7ef",
  "rgb": {
    "r": 100,
    "g": 183,
    "b": 239
  },
  "hsl": {
    "h": 204.173,
    "s": 81.287,
    "l": 66.471
  },
  "oklch": {
    "l": 0.74939,
    "c": 0.11465,
    "h": 240.2
  },
  "luminance": 0.42808
}

Semantic roles & 50–950 ramp

primary

#64B7EF

secondary

#EED3C1

accent

#5E08DE

background

#FAFCFE

surface

#F3F8FD

border

#CDD1D5

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #64B7EF

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

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