#64B9F3#64B9F3

#64B9F3 is a light, moderate cyan. Relative luminance 0.439; OKLCH L 75.6% C 0.118 H 240.6°. Best body text is #000000 at 9.78:1 contrast (WCAG AA passes).

Color values

HEX	#64B9F3
RGB	rgb(100, 185, 243)
HSL	hsl(204, 86%, 67%)
HSV	hsv(204, 59%, 95%)
CMYK	cmyk(58.8%, 23.9%, 0%, 4.7%)
CIE-LAB	lab(72.14, -9.10, -36.56)
CIE-LCH	lch(72.14, 37.67, 256.02°)
OKLab	oklab(75.57% -0.0578 -0.1025)
OKLCH	oklch(75.57% 0.118 240.6)
XYZ	xyz(38.7761, 43.8747, 91.2018)
Luminance	0.4388 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64B9F3 #F39E64

analogous

#64F3E6 #64B9F3 #6471F3

triadic

#64B9F3 #F364B9 #B9F364

tetradic

#64B9F3 #E664F3 #F39E64 #71F364

square

#64B9F3 #E664F3 #F39E64 #71F364

split-complementary

#64B9F3 #F36471 #F3E664

monochromatic

#1080CD #2B9FEF #64B9F3 #9DD3F7 #D6ECFC

Accessibility & contrast

On white

2.15

#64B9F3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.78

#64B9F3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #64B9F3

9.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64B9F3	#FFFFFF	#000000	##000000
##64B9F3	1.00	2.15	9.78	9.78
#FFFFFF	2.15	1.00	21.00	21.00
#000000	9.78	21.00	1.00	1.00
##000000	9.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9FB9F6

Deuteranopia (green-blind)

#8BAAF2

Tritanopia (blue-blind)

#00C7CD

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #64b9f3;
/* rgb */ color: rgb(100, 185, 243);
/* oklch */ color: oklch(75.6% 0.118 240.6);

Tailwind

colors: {
  custom: {
    50: '#9bcdf7',
    500: '#64b9f3',
    950: '#000000',
  },
}

SCSS

$custom: #64b9f3;
$custom-light: #9bcdf7;
$custom-dark: #000000;

JSON

{
  "hex": "#64b9f3",
  "rgb": {
    "r": 100,
    "g": 185,
    "b": 243
  },
  "hsl": {
    "h": 204.336,
    "s": 85.629,
    "l": 67.255
  },
  "oklch": {
    "l": 0.75565,
    "c": 0.11767,
    "h": 240.6
  },
  "luminance": 0.43878
}

Semantic roles & 50–950 ramp

primary

#64B9F3

secondary

#F0D5C3

accent

#5E03E2

background

#FAFCFF

surface

#F4F9FE

border

#CED2D6

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #64B9F3

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

Preview Lab → · Contrast checker → · Palette generator →