#40CCEF#40CCEF

#40CCEF is a light, vivid cyan. Relative luminance 0.505; OKLCH L 78.6% C 0.125 H 218.5°. Best body text is #000000 at 11.10:1 contrast (WCAG AA passes).

Color values

HEX	#40CCEF
RGB	rgb(64, 204, 239)
HSL	hsl(192, 85%, 59%)
HSV	hsv(192, 73%, 94%)
CMYK	cmyk(73.2%, 14.6%, 0%, 6.3%)
CIE-LAB	lab(76.38, -25.74, -27.95)
CIE-LCH	lch(76.38, 38.00, 227.36°)
OKLab	oklab(78.6% -0.0982 -0.0781)
OKLCH	oklch(78.6% 0.125 218.5)
XYZ	xyz(39.2807, 50.5030, 89.3224)
Luminance	0.5051 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40CCEF #EF6340

analogous

#40EFBB #40CCEF #4075EF

triadic

#40CCEF #EF40CC #CCEF40

tetradic

#40CCEF #BB40EF #EF6340 #75EF40

square

#40CCEF #BB40EF #EF6340 #75EF40

split-complementary

#40CCEF #EF4075 #EFBB40

monochromatic

#0E88A7 #13B6DF #40CCEF #78DBF4 #B1EAF8

Accessibility & contrast

On white

1.89

#40CCEF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.10

#40CCEF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40CCEF

11.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40CCEF	#FFFFFF	#000000	##000000
##40CCEF	1.00	1.89	11.10	11.10
#FFFFFF	1.89	1.00	21.00	21.00
#000000	11.10	21.00	1.00	1.00
##000000	11.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B6C6F1

Deuteranopia (green-blind)

#9EB5EF

Tritanopia (blue-blind)

#00D8D7

Achromatopsia (no color)

#BCBCBC

Design tokens & code

CSS

--color: #40ccef;
/* rgb */ color: rgb(64, 204, 239);
/* oklch */ color: oklch(78.6% 0.125 218.5);

Tailwind

colors: {
  custom: {
    50: '#8ddbf4',
    500: '#40ccef',
    950: '#000000',
  },
}

SCSS

$custom: #40ccef;
$custom-light: #8ddbf4;
$custom-dark: #000000;

JSON

{
  "hex": "#40ccef",
  "rgb": {
    "r": 64,
    "g": 204,
    "b": 239
  },
  "hsl": {
    "h": 192,
    "s": 84.541,
    "l": 59.412
  },
  "oklch": {
    "l": 0.786,
    "c": 0.12544,
    "h": 218.5
  },
  "luminance": 0.50508
}

Semantic roles & 50–950 ramp

primary

#40CCEF

secondary

#A8442B

accent

#562DFB

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0E1517

muted

#7F8485

Preview Lab

Preview with #40CCEF

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

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