#64BDF3#64BDF3

#64BDF3 is a light, moderate cyan. Relative luminance 0.456; OKLCH L 76.5% C 0.116 H 237.5°. Best body text is #000000 at 10.12:1 contrast (WCAG AA passes).

Color values

HEX	#64BDF3
RGB	rgb(100, 189, 243)
HSL	hsl(203, 86%, 67%)
HSV	hsv(203, 59%, 95%)
CMYK	cmyk(58.8%, 22.2%, 0%, 4.7%)
CIE-LAB	lab(73.27, -11.25, -34.82)
CIE-LCH	lch(73.27, 36.59, 252.09°)
OKLab	oklab(76.45% -0.062 -0.0975)
OKLCH	oklch(76.45% 0.116 237.5)
XYZ	xyz(39.6247, 45.5718, 91.4847)
Luminance	0.4558 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64BDF3 #F39A64

analogous

#64F3E1 #64BDF3 #6476F3

triadic

#64BDF3 #F364BD #BDF364

tetradic

#64BDF3 #E164F3 #F39A64 #76F364

square

#64BDF3 #E164F3 #F39A64 #76F364

split-complementary

#64BDF3 #F36476 #F3E164

monochromatic

#1085CD #2BA5EF #64BDF3 #9DD5F7 #D6EDFC

Accessibility & contrast

On white

2.08

#64BDF3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.12

#64BDF3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #64BDF3

10.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64BDF3	#FFFFFF	#000000	##000000
##64BDF3	1.00	2.08	10.12	10.12
#FFFFFF	2.08	1.00	21.00	21.00
#000000	10.12	21.00	1.00	1.00
##000000	10.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A4BCF6

Deuteranopia (green-blind)

#90ADF2

Tritanopia (blue-blind)

#00CBCF

Achromatopsia (no color)

#B4B4B4

Design tokens & code

CSS

--color: #64bdf3;
/* rgb */ color: rgb(100, 189, 243);
/* oklch */ color: oklch(76.5% 0.116 237.5);

Tailwind

colors: {
  custom: {
    50: '#9bd0f7',
    500: '#64bdf3',
    950: '#000000',
  },
}

SCSS

$custom: #64bdf3;
$custom-light: #9bd0f7;
$custom-dark: #000000;

JSON

{
  "hex": "#64bdf3",
  "rgb": {
    "r": 100,
    "g": 189,
    "b": 243
  },
  "hsl": {
    "h": 202.657,
    "s": 85.629,
    "l": 67.255
  },
  "oklch": {
    "l": 0.76454,
    "c": 0.11553,
    "h": 237.5
  },
  "luminance": 0.45576
}

Semantic roles & 50–950 ramp

primary

#64BDF3

secondary

#F0D4C3

accent

#5703E2

background

#FAFCFF

surface

#F4F9FE

border

#CED2D6

text

#0F1417

muted

#7F8285

Preview Lab

Preview with #64BDF3

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

Preview Lab → · Contrast checker → · Palette generator →