#40ADD3#40ADD3

#40ADD3 is a light, moderate cyan. Relative luminance 0.357; OKLCH L 70.1% C 0.112 H 225.1°. Best body text is #000000 at 8.14:1 contrast (WCAG AA passes).

Color values

HEX	#40ADD3
RGB	rgb(64, 173, 211)
HSL	hsl(196, 63%, 54%)
HSV	hsv(196, 70%, 83%)
CMYK	cmyk(69.7%, 18%, 0%, 17.3%)
CIE-LAB	lab(66.27, -18.75, -28.25)
CIE-LCH	lch(66.27, 33.90, 236.43°)
OKLab	oklab(70.15% -0.0787 -0.079)
OKLCH	oklch(70.15% 0.112 225.1)
XYZ	xyz(28.8110, 35.6770, 66.9833)
Luminance	0.3568 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40ADD3 #D36640

analogous

#40D3B0 #40ADD3 #4064D3

triadic

#40ADD3 #D340AD #ADD340

tetradic

#40ADD3 #B040D3 #D36640 #64D340

square

#40ADD3 #B040D3 #D36640 #64D340

split-complementary

#40ADD3 #D34064 #D3B040

monochromatic

#1D637C #288BAE #40ADD3 #72C2DE #A3D8EA

Accessibility & contrast

On white

2.58

#40ADD3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.14

#40ADD3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40ADD3

8.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40ADD3	#FFFFFF	#000000	##000000
##40ADD3	1.00	2.58	8.14	8.14
#FFFFFF	2.58	1.00	21.00	21.00
#000000	8.14	21.00	1.00	1.00
##000000	8.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#98A9D5

Deuteranopia (green-blind)

#849BD3

Tritanopia (blue-blind)

#00B8B9

Achromatopsia (no color)

#A1A1A1

Design tokens & code

CSS

--color: #40add3;
/* rgb */ color: rgb(64, 173, 211);
/* oklch */ color: oklch(70.1% 0.112 225.1);

Tailwind

colors: {
  custom: {
    50: '#87c5e0',
    500: '#40add3',
    950: '#000000',
  },
}

SCSS

$custom: #40add3;
$custom-light: #87c5e0;
$custom-dark: #000000;

JSON

{
  "hex": "#40add3",
  "rgb": {
    "r": 64,
    "g": 173,
    "b": 211
  },
  "hsl": {
    "h": 195.51,
    "s": 62.553,
    "l": 53.922
  },
  "oklch": {
    "l": 0.70149,
    "c": 0.11151,
    "h": 225.1
  },
  "luminance": 0.3568
}

Semantic roles & 50–950 ramp

primary

#40ADD3

secondary

#D7A898

accent

#6C42E6

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0D1315

muted

#7D8283

Preview Lab

Preview with #40ADD3

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

Preview Lab → · Contrast checker → · Palette generator →