#64B5F0#64B5F0

#64B5F0 is a light, moderate cyan. Relative luminance 0.420; OKLCH L 74.5% C 0.117 H 242.2°. Best body text is #000000 at 9.41:1 contrast (WCAG AA passes).

Color values

HEX	#64B5F0
RGB	rgb(100, 181, 240)
HSL	hsl(205, 82%, 67%)
HSV	hsv(205, 58%, 94%)
CMYK	cmyk(58.3%, 24.6%, 0%, 5.9%)
CIE-LAB	lab(70.90, -7.85, -36.86)
CIE-LCH	lch(70.90, 37.69, 257.97°)
OKLab	oklab(74.54% -0.0545 -0.1034)
OKLCH	oklch(74.54% 0.117 242.2)
XYZ	xyz(37.5017, 42.0449, 88.5603)
Luminance	0.4205 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64B5F0 #F09F64

analogous

#64F0E5 #64B5F0 #646FF0

triadic

#64B5F0 #F064B5 #B5F064

tetradic

#64B5F0 #E564F0 #F09F64 #6FF064

square

#64B5F0 #E564F0 #F09F64 #6FF064

split-complementary

#64B5F0 #F0646F #F0E564

monochromatic

#137BC6 #2C9AEB #64B5F0 #9CD0F5 #D4EAFB

Accessibility & contrast

On white

2.23

#64B5F0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.41

#64B5F0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #64B5F0

9.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64B5F0	#FFFFFF	#000000	##000000
##64B5F0	1.00	2.23	9.41	9.41
#FFFFFF	2.23	1.00	21.00	21.00
#000000	9.41	21.00	1.00	1.00
##000000	9.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9BB5F3

Deuteranopia (green-blind)

#88A7EF

Tritanopia (blue-blind)

#00C3C9

Achromatopsia (no color)

#ADADAD

Design tokens & code

CSS

--color: #64b5f0;
/* rgb */ color: rgb(100, 181, 240);
/* oklch */ color: oklch(74.5% 0.117 242.2);

Tailwind

colors: {
  custom: {
    50: '#9bcbf5',
    500: '#64b5f0',
    950: '#000000',
  },
}

SCSS

$custom: #64b5f0;
$custom-light: #9bcbf5;
$custom-dark: #000000;

JSON

{
  "hex": "#64b5f0",
  "rgb": {
    "r": 100,
    "g": 181,
    "b": 240
  },
  "hsl": {
    "h": 205.286,
    "s": 82.353,
    "l": 66.667
  },
  "oklch": {
    "l": 0.74541,
    "c": 0.11689,
    "h": 242.2
  },
  "luminance": 0.42048
}

Semantic roles & 50–950 ramp

primary

#64B5F0

secondary

#EED4C1

accent

#6207DF

background

#FAFCFE

surface

#F3F8FD

border

#CDD1D5

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #64B5F0

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

Preview Lab → · Contrast checker → · Palette generator →