#40ADD4#40ADD4

#40ADD4 is a light, moderate cyan. Relative luminance 0.357; OKLCH L 70.2% C 0.112 H 225.8°. Best body text is #000000 at 8.15:1 contrast (WCAG AA passes).

Color values

HEX	#40ADD4
RGB	rgb(64, 173, 212)
HSL	hsl(196, 63%, 54%)
HSV	hsv(196, 70%, 83%)
CMYK	cmyk(69.8%, 18.4%, 0%, 16.9%)
CIE-LAB	lab(66.31, -18.43, -28.74)
CIE-LCH	lch(66.31, 34.14, 237.34°)
OKLab	oklab(70.19% -0.0783 -0.0804)
OKLCH	oklch(70.19% 0.112 225.8)
XYZ	xyz(28.9368, 35.7273, 67.6456)
Luminance	0.3573 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40ADD4 #D46740

analogous

#40D4B1 #40ADD4 #4063D4

triadic

#40ADD4 #D440AD #ADD440

tetradic

#40ADD4 #B140D4 #D46740 #63D440

square

#40ADD4 #B140D4 #D46740 #63D440

split-complementary

#40ADD4 #D44063 #D4B140

monochromatic

#1C647D #278CAF #40ADD4 #72C2DF #A4D8EA

Accessibility & contrast

On white

2.58

#40ADD4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.15

#40ADD4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40ADD4

8.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40ADD4	#FFFFFF	#000000	##000000
##40ADD4	1.00	2.58	8.15	8.15
#FFFFFF	2.58	1.00	21.00	21.00
#000000	8.15	21.00	1.00	1.00
##000000	8.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#98AAD6

Deuteranopia (green-blind)

#839BD4

Tritanopia (blue-blind)

#00B8BA

Achromatopsia (no color)

#A1A1A1

Design tokens & code

CSS

--color: #40add4;
/* rgb */ color: rgb(64, 173, 212);
/* oklch */ color: oklch(70.2% 0.112 225.8);

Tailwind

colors: {
  custom: {
    50: '#87c5e1',
    500: '#40add4',
    950: '#000000',
  },
}

SCSS

$custom: #40add4;
$custom-light: #87c5e1;
$custom-dark: #000000;

JSON

{
  "hex": "#40add4",
  "rgb": {
    "r": 64,
    "g": 173,
    "b": 212
  },
  "hsl": {
    "h": 195.811,
    "s": 63.248,
    "l": 54.118
  },
  "oklch": {
    "l": 0.70192,
    "c": 0.11225,
    "h": 225.8
  },
  "luminance": 0.35731
}

Semantic roles & 50–950 ramp

primary

#40ADD4

secondary

#D7A998

accent

#6D42E6

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #40ADD4

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

Preview Lab → · Contrast checker → · Palette generator →