#40ACFF#40ACFF

#40ACFF is a light, vivid cyan. Relative luminance 0.378; OKLCH L 72.1% C 0.155 H 245.8°. Best body text is #000000 at 8.56:1 contrast (WCAG AA passes).

Color values

HEX	#40ACFF
RGB	rgb(64, 172, 255)
HSL	hsl(206, 100%, 63%)
HSV	hsv(206, 75%, 100%)
CMYK	cmyk(74.9%, 32.5%, 0%, 0%)
CIE-LAB	lab(67.88, -3.48, -49.81)
CIE-LCH	lch(67.88, 49.94, 266.00°)
OKLab	oklab(72.05% -0.0635 -0.1414)
OKLCH	oklch(72.05% 0.155 245.8)
XYZ	xyz(34.9099, 37.8109, 100.0467)
Luminance	0.3781 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40ACFF #FF9340

analogous

#40FFF2 #40ACFF #404DFF

triadic

#40ACFF #FF40AC #ACFF40

tetradic

#40ACFF #F240FF #FF9340 #4DFF40

square

#40ACFF #F240FF #FF9340 #4DFF40

split-complementary

#40ACFF #FF404D #FFF240

monochromatic

#006FC5 #0391FF #40ACFF #7DC7FF #BAE1FF

Accessibility & contrast

On white

2.45

#40ACFF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.56

#40ACFF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40ACFF

8.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40ACFF	#FFFFFF	#000000	##000000
##40ACFF	1.00	2.45	8.56	8.56
#FFFFFF	2.45	1.00	21.00	21.00
#000000	8.56	21.00	1.00	1.00
##000000	8.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#86AFFF

Deuteranopia (green-blind)

#6B9DFD

Tritanopia (blue-blind)

#00C0CA

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #40acff;
/* rgb */ color: rgb(64, 172, 255);
/* oklch */ color: oklch(72.1% 0.155 245.8);

Tailwind

colors: {
  custom: {
    50: '#8dc4ff',
    500: '#40acff',
    950: '#000000',
  },
}

SCSS

$custom: #40acff;
$custom-light: #8dc4ff;
$custom-dark: #000000;

JSON

{
  "hex": "#40acff",
  "rgb": {
    "r": 64,
    "g": 172,
    "b": 255
  },
  "hsl": {
    "h": 206.073,
    "s": 100,
    "l": 62.549
  },
  "oklch": {
    "l": 0.72051,
    "c": 0.15504,
    "h": 245.8
  },
  "luminance": 0.37815
}

Semantic roles & 50–950 ramp

primary

#40ACFF

secondary

#F0C9AB

accent

#6400E6

background

#F9FCFF

surface

#F2F8FF

border

#CCD1D7

text

#0E1218

muted

#7E8186

Preview Lab

Preview with #40ACFF

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

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