#64B3EF#64B3EF

#64B3EF is a light, moderate cyan. Relative luminance 0.412; OKLCH L 74.1% C 0.117 H 243.2°. Best body text is #000000 at 9.24:1 contrast (WCAG AA passes).

Color values

HEX	#64B3EF
RGB	rgb(100, 179, 239)
HSL	hsl(206, 81%, 66%)
HSV	hsv(206, 58%, 94%)
CMYK	cmyk(58.2%, 25.1%, 0%, 6.3%)
CIE-LAB	lab(70.30, -7.07, -37.25)
CIE-LCH	lch(70.30, 37.92, 259.26°)
OKLab	oklab(74.05% -0.0527 -0.1045)
OKLCH	oklch(74.05% 0.117 243.2)
XYZ	xyz(36.9499, 41.1781, 87.6456)
Luminance	0.4118 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64B3EF #EFA064

analogous

#64EFE5 #64B3EF #646EEF

triadic

#64B3EF #EF64B3 #B3EF64

tetradic

#64B3EF #E564EF #EFA064 #6EEF64

square

#64B3EF #E564EF #EFA064 #6EEF64

split-complementary

#64B3EF #EF646E #EFE564

monochromatic

#1478C4 #2D98E9 #64B3EF #9BCEF5 #D3E9FA

Accessibility & contrast

On white

2.27

#64B3EF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.24

#64B3EF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #64B3EF

9.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64B3EF	#FFFFFF	#000000	##000000
##64B3EF	1.00	2.27	9.24	9.24
#FFFFFF	2.27	1.00	21.00	21.00
#000000	9.24	21.00	1.00	1.00
##000000	9.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#99B4F2

Deuteranopia (green-blind)

#86A6EE

Tritanopia (blue-blind)

#00C2C8

Achromatopsia (no color)

#ACACAC

Design tokens & code

CSS

--color: #64b3ef;
/* rgb */ color: rgb(100, 179, 239);
/* oklch */ color: oklch(74.1% 0.117 243.2);

Tailwind

colors: {
  custom: {
    50: '#9ac9f4',
    500: '#64b3ef',
    950: '#000000',
  },
}

SCSS

$custom: #64b3ef;
$custom-light: #9ac9f4;
$custom-dark: #000000;

JSON

{
  "hex": "#64b3ef",
  "rgb": {
    "r": 100,
    "g": 179,
    "b": 239
  },
  "hsl": {
    "h": 205.899,
    "s": 81.287,
    "l": 66.471
  },
  "oklch": {
    "l": 0.74052,
    "c": 0.11707,
    "h": 243.2
  },
  "luminance": 0.41182
}

Semantic roles & 50–950 ramp

primary

#64B3EF

secondary

#EED4C1

accent

#6408DE

background

#FAFCFE

surface

#F3F8FD

border

#CDD1D5

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #64B3EF

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

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