#40DAFF#40DAFF

#40DAFF is a very light, vivid cyan. Relative luminance 0.585; OKLCH L 82.5% C 0.134 H 218.0°. Best body text is #000000 at 12.69:1 contrast (WCAG AA passes).

Color values

HEX	#40DAFF
RGB	rgb(64, 218, 255)
HSL	hsl(192, 100%, 63%)
HSV	hsv(192, 75%, 100%)
CMYK	cmyk(74.9%, 14.5%, 0%, 0%)
CIE-LAB	lab(80.99, -27.69, -29.42)
CIE-LCH	lch(80.99, 40.40, 226.73°)
OKLab	oklab(82.5% -0.1052 -0.0822)
OKLCH	oklch(82.5% 0.134 218)
XYZ	xyz(45.2281, 58.4473, 103.4861)
Luminance	0.5845 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40DAFF #FF6540

analogous

#40FFC4 #40DAFF #407BFF

triadic

#40DAFF #FF40DA #DAFF40

tetradic

#40DAFF #C440FF #FF6540 #7BFF40

square

#40DAFF #C440FF #FF6540 #7BFF40

split-complementary

#40DAFF #FF407B #FFC440

monochromatic

#009FC5 #03CEFF #40DAFF #7DE6FF #BAF2FF

Accessibility & contrast

On white

1.65

#40DAFF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.69

#40DAFF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40DAFF

12.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40DAFF	#FFFFFF	#000000	##000000
##40DAFF	1.00	1.65	12.69	12.69
#FFFFFF	1.65	1.00	21.00	21.00
#000000	12.69	21.00	1.00	1.00
##000000	12.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C2D4FF

Deuteranopia (green-blind)

#A9C1FF

Tritanopia (blue-blind)

#00E7E6

Achromatopsia (no color)

#C9C9C9

Design tokens & code

CSS

--color: #40daff;
/* rgb */ color: rgb(64, 218, 255);
/* oklch */ color: oklch(82.5% 0.134 218.0);

Tailwind

colors: {
  custom: {
    50: '#90e5ff',
    500: '#40daff',
    950: '#000000',
  },
}

SCSS

$custom: #40daff;
$custom-light: #90e5ff;
$custom-dark: #000000;

JSON

{
  "hex": "#40daff",
  "rgb": {
    "r": 64,
    "g": 218,
    "b": 255
  },
  "hsl": {
    "h": 191.623,
    "s": 100,
    "l": 62.549
  },
  "oklch": {
    "l": 0.82496,
    "c": 0.13353,
    "h": 218
  },
  "luminance": 0.58453
}

Semantic roles & 50–950 ramp

primary

#40DAFF

secondary

#C14122

accent

#2C00E6

background

#FCFEFF

surface

#F5FCFF

border

#CFD5D7

text

#0F1618

muted

#808486

Preview Lab

Preview with #40DAFF

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

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