#64B5E8#64B5E8

#64B5E8 is a light, moderate cyan. Relative luminance 0.416; OKLCH L 74.2% C 0.109 H 238.2°. Best body text is #000000 at 9.32:1 contrast (WCAG AA passes).

Color values

HEX	#64B5E8
RGB	rgb(100, 181, 232)
HSL	hsl(203, 74%, 65%)
HSV	hsv(203, 57%, 91%)
CMYK	cmyk(56.9%, 22%, 0%, 9%)
CIE-LAB	lab(70.58, -10.29, -33.01)
CIE-LCH	lch(70.58, 34.58, 252.68°)
OKLab	oklab(74.18% -0.0571 -0.0923)
OKLCH	oklch(74.18% 0.109 238.2)
XYZ	xyz(36.3395, 41.5800, 82.4390)
Luminance	0.4158 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64B5E8 #E89764

analogous

#64E8D9 #64B5E8 #6473E8

triadic

#64B5E8 #E864B5 #B5E864

tetradic

#64B5E8 #D964E8 #E89764 #73E864

square

#64B5E8 #D964E8 #E89764 #73E864

split-complementary

#64B5E8 #E86473 #E8D964

monochromatic

#1B7AB7 #2F9CE0 #64B5E8 #99CEF0 #CFE8F8

Accessibility & contrast

On white

2.25

#64B5E8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.32

#64B5E8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #64B5E8

9.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64B5E8	#FFFFFF	#000000	##000000
##64B5E8	1.00	2.25	9.32	9.32
#FFFFFF	2.25	1.00	21.00	21.00
#000000	9.32	21.00	1.00	1.00
##000000	9.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9EB4EA

Deuteranopia (green-blind)

#8CA7E7

Tritanopia (blue-blind)

#00C2C6

Achromatopsia (no color)

#ADADAD

Design tokens & code

CSS

--color: #64b5e8;
/* rgb */ color: rgb(100, 181, 232);
/* oklch */ color: oklch(74.2% 0.109 238.2);

Tailwind

colors: {
  custom: {
    50: '#9acbef',
    500: '#64b5e8',
    950: '#000000',
  },
}

SCSS

$custom: #64b5e8;
$custom-light: #9acbef;
$custom-dark: #000000;

JSON

{
  "hex": "#64b5e8",
  "rgb": {
    "r": 100,
    "g": 181,
    "b": 232
  },
  "hsl": {
    "h": 203.182,
    "s": 74.157,
    "l": 65.098
  },
  "oklch": {
    "l": 0.7418,
    "c": 0.10858,
    "h": 238.2
  },
  "luminance": 0.41583
}

Semantic roles & 50–950 ramp

primary

#64B5E8

secondary

#EACFBE

accent

#5C0FD6

background

#FAFCFE

surface

#F3F8FD

border

#CDD1D5

text

#0F1316

muted

#7F8284

Preview Lab

Preview with #64B5E8

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

Preview Lab → · Contrast checker → · Palette generator →