#40ACD4#40ACD4

#40ACD4 is a light, moderate cyan. Relative luminance 0.353; OKLCH L 70.0% C 0.113 H 226.6°. Best body text is #000000 at 8.07:1 contrast (WCAG AA passes).

Color values

HEX	#40ACD4
RGB	rgb(64, 172, 212)
HSL	hsl(196, 63%, 54%)
HSV	hsv(196, 70%, 83%)
CMYK	cmyk(69.8%, 18.9%, 0%, 16.9%)
CIE-LAB	lab(66.02, -17.90, -29.20)
CIE-LCH	lch(66.02, 34.25, 238.49°)
OKLab	oklab(69.96% -0.0773 -0.0817)
OKLCH	oklch(69.96% 0.113 226.6)
XYZ	xyz(28.7457, 35.3453, 67.5819)
Luminance	0.3535 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40ACD4 #D46840

analogous

#40D4B2 #40ACD4 #4062D4

triadic

#40ACD4 #D440AC #ACD440

tetradic

#40ACD4 #B240D4 #D46840 #62D440

square

#40ACD4 #B240D4 #D46840 #62D440

split-complementary

#40ACD4 #D44062 #D4B240

monochromatic

#1C637D #278BAF #40ACD4 #72C2DF #A4D7EA

Accessibility & contrast

On white

2.60

#40ACD4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.07

#40ACD4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40ACD4

8.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40ACD4	#FFFFFF	#000000	##000000
##40ACD4	1.00	2.60	8.07	8.07
#FFFFFF	2.60	1.00	21.00	21.00
#000000	8.07	21.00	1.00	1.00
##000000	8.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#96A9D6

Deuteranopia (green-blind)

#829AD4

Tritanopia (blue-blind)

#00B8B9

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #40acd4;
/* rgb */ color: rgb(64, 172, 212);
/* oklch */ color: oklch(70.0% 0.113 226.6);

Tailwind

colors: {
  custom: {
    50: '#87c4e1',
    500: '#40acd4',
    950: '#000000',
  },
}

SCSS

$custom: #40acd4;
$custom-light: #87c4e1;
$custom-dark: #000000;

JSON

{
  "hex": "#40acd4",
  "rgb": {
    "r": 64,
    "g": 172,
    "b": 212
  },
  "hsl": {
    "h": 196.216,
    "s": 63.248,
    "l": 54.118
  },
  "oklch": {
    "l": 0.69957,
    "c": 0.11251,
    "h": 226.6
  },
  "luminance": 0.35349
}

Semantic roles & 50–950 ramp

primary

#40ACD4

secondary

#D7A998

accent

#6E42E6

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1215

muted

#7E8183

Preview Lab

Preview with #40ACD4

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

Preview Lab → · Contrast checker → · Palette generator →