#64C8EF#64C8EF

#64C8EF is a light, moderate cyan. Relative luminance 0.502; OKLCH L 78.8% C 0.108 H 226.2°. Best body text is #000000 at 11.05:1 contrast (WCAG AA passes).

Color values

HEX	#64C8EF
RGB	rgb(100, 200, 239)
HSL	hsl(197, 81%, 66%)
HSV	hsv(197, 58%, 94%)
CMYK	cmyk(58.2%, 16.3%, 0%, 6.3%)
CIE-LAB	lab(76.22, -18.23, -28.11)
CIE-LCH	lch(76.22, 33.50, 237.04°)
OKLab	oklab(78.75% -0.075 -0.0783)
OKLCH	oklch(78.75% 0.108 226.2)
XYZ	xyz(41.4837, 50.2459, 89.1569)
Luminance	0.5025 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64C8EF #EF8B64

analogous

#64EFD1 #64C8EF #6483EF

triadic

#64C8EF #EF64C8 #C8EF64

tetradic

#64C8EF #D164EF #EF8B64 #83EF64

square

#64C8EF #D164EF #EF8B64 #83EF64

split-complementary

#64C8EF #EF6483 #EFD164

monochromatic

#1493C4 #2DB4E9 #64C8EF #9BDCF5 #D3EFFA

Accessibility & contrast

On white

1.90

#64C8EF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.05

#64C8EF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #64C8EF

11.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64C8EF	#FFFFFF	#000000	##000000
##64C8EF	1.00	1.90	11.05	11.05
#FFFFFF	1.90	1.00	21.00	21.00
#000000	11.05	21.00	1.00	1.00
##000000	11.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B3C4F1

Deuteranopia (green-blind)

#9FB6EF

Tritanopia (blue-blind)

#00D4D5

Achromatopsia (no color)

#BCBCBC

Design tokens & code

CSS

--color: #64c8ef;
/* rgb */ color: rgb(100, 200, 239);
/* oklch */ color: oklch(78.8% 0.108 226.2);

Tailwind

colors: {
  custom: {
    50: '#9bd8f4',
    500: '#64c8ef',
    950: '#000000',
  },
}

SCSS

$custom: #64c8ef;
$custom-light: #9bd8f4;
$custom-dark: #000000;

JSON

{
  "hex": "#64c8ef",
  "rgb": {
    "r": 100,
    "g": 200,
    "b": 239
  },
  "hsl": {
    "h": 196.835,
    "s": 81.287,
    "l": 66.471
  },
  "oklch": {
    "l": 0.78753,
    "c": 0.10842,
    "h": 226.2
  },
  "luminance": 0.5025
}

Semantic roles & 50–950 ramp

primary

#64C8EF

secondary

#C25D35

accent

#4408DE

background

#FCFEFF

surface

#F5FBFE

border

#CFD4D6

text

#0F1417

muted

#808385

Preview Lab

Preview with #64C8EF

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

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