#64B4E9#64B4E9

#64B4E9 is a light, moderate cyan. Relative luminance 0.412; OKLCH L 74.0% C 0.110 H 239.6°. Best body text is #000000 at 9.25:1 contrast (WCAG AA passes).

Color values

HEX	#64B4E9
RGB	rgb(100, 180, 233)
HSL	hsl(204, 75%, 65%)
HSV	hsv(204, 57%, 91%)
CMYK	cmyk(57.1%, 22.7%, 0%, 8.6%)
CIE-LAB	lab(70.34, -9.45, -33.93)
CIE-LCH	lch(70.34, 35.22, 254.44°)
OKLab	oklab(74% -0.0557 -0.095)
OKLCH	oklch(74% 0.11 239.6)
XYZ	xyz(36.2793, 41.2317, 83.1216)
Luminance	0.4123 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64B4E9 #E99964

analogous

#64E9DC #64B4E9 #6471E9

triadic

#64B4E9 #E964B4 #B4E964

tetradic

#64B4E9 #DC64E9 #E99964 #71E964

square

#64B4E9 #DC64E9 #E99964 #71E964

split-complementary

#64B4E9 #E96471 #E9DC64

monochromatic

#1A79B8 #2E9AE1 #64B4E9 #9ACEF1 #CFE8F8

Accessibility & contrast

On white

2.27

#64B4E9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.25

#64B4E9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #64B4E9

9.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64B4E9	#FFFFFF	#000000	##000000
##64B4E9	1.00	2.27	9.25	9.25
#FFFFFF	2.27	1.00	21.00	21.00
#000000	9.25	21.00	1.00	1.00
##000000	9.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9CB4EB

Deuteranopia (green-blind)

#8AA6E8

Tritanopia (blue-blind)

#00C1C6

Achromatopsia (no color)

#ACACAC

Design tokens & code

CSS

--color: #64b4e9;
/* rgb */ color: rgb(100, 180, 233);
/* oklch */ color: oklch(74.0% 0.110 239.6);

Tailwind

colors: {
  custom: {
    50: '#9acaf0',
    500: '#64b4e9',
    950: '#000000',
  },
}

SCSS

$custom: #64b4e9;
$custom-light: #9acaf0;
$custom-dark: #000000;

JSON

{
  "hex": "#64b4e9",
  "rgb": {
    "r": 100,
    "g": 180,
    "b": 233
  },
  "hsl": {
    "h": 203.91,
    "s": 75.141,
    "l": 65.294
  },
  "oklch": {
    "l": 0.74002,
    "c": 0.11011,
    "h": 239.6
  },
  "luminance": 0.41235
}

Semantic roles & 50–950 ramp

primary

#64B4E9

secondary

#EBD0BE

accent

#5E0ED7

background

#FAFCFE

surface

#F3F8FD

border

#CDD1D5

text

#0F1316

muted

#7F8284

Preview Lab

Preview with #64B4E9

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

Preview Lab → · Contrast checker → · Palette generator →