#64B9EE#64B9EE

#64B9EE is a light, moderate cyan. Relative luminance 0.436; OKLCH L 75.3% C 0.113 H 238.1°. Best body text is #000000 at 9.72:1 contrast (WCAG AA passes).

Color values

HEX	#64B9EE
RGB	rgb(100, 185, 238)
HSL	hsl(203, 80%, 66%)
HSV	hsv(203, 58%, 93%)
CMYK	cmyk(58%, 22.3%, 0%, 6.7%)
CIE-LAB	lab(71.94, -10.63, -34.16)
CIE-LCH	lch(71.94, 35.77, 252.72°)
OKLab	oklab(75.34% -0.0594 -0.0956)
OKLCH	oklch(75.34% 0.113 238.1)
XYZ	xyz(38.0313, 43.5768, 87.2793)
Luminance	0.4358 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64B9EE #EE9964

analogous

#64EEDE #64B9EE #6474EE

triadic

#64B9EE #EE64B9 #B9EE64

tetradic

#64B9EE #DE64EE #EE9964 #74EE64

square

#64B9EE #DE64EE #EE9964 #74EE64

split-complementary

#64B9EE #EE6474 #EEDE64

monochromatic

#1580C2 #2DA0E8 #64B9EE #9BD2F4 #D2EBFA

Accessibility & contrast

On white

2.16

#64B9EE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.72

#64B9EE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #64B9EE

9.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64B9EE	#FFFFFF	#000000	##000000
##64B9EE	1.00	2.16	9.72	9.72
#FFFFFF	2.16	1.00	21.00	21.00
#000000	9.72	21.00	1.00	1.00
##000000	9.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A1B8F1

Deuteranopia (green-blind)

#8EAAED

Tritanopia (blue-blind)

#00C6CB

Achromatopsia (no color)

#B0B0B0

Design tokens & code

CSS

--color: #64b9ee;
/* rgb */ color: rgb(100, 185, 238);
/* oklch */ color: oklch(75.3% 0.113 238.1);

Tailwind

colors: {
  custom: {
    50: '#9acef3',
    500: '#64b9ee',
    950: '#000000',
  },
}

SCSS

$custom: #64b9ee;
$custom-light: #9acef3;
$custom-dark: #000000;

JSON

{
  "hex": "#64b9ee",
  "rgb": {
    "r": 100,
    "g": 185,
    "b": 238
  },
  "hsl": {
    "h": 203.043,
    "s": 80.233,
    "l": 66.275
  },
  "oklch": {
    "l": 0.7534,
    "c": 0.11257,
    "h": 238.1
  },
  "luminance": 0.4358
}

Semantic roles & 50–950 ramp

primary

#64B9EE

secondary

#EDD2C0

accent

#5A09DD

background

#FAFCFE

surface

#F3F9FD

border

#CDD2D5

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #64B9EE

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

Preview Lab → · Contrast checker → · Palette generator →