#40ACD5#40ACD5

#40ACD5 is a light, moderate cyan. Relative luminance 0.354; OKLCH L 70.0% C 0.113 H 227.2°. Best body text is #000000 at 8.08:1 contrast (WCAG AA passes).

Color values

HEX	#40ACD5
RGB	rgb(64, 172, 213)
HSL	hsl(197, 64%, 54%)
HSV	hsv(197, 70%, 84%)
CMYK	cmyk(70%, 19.2%, 0%, 16.5%)
CIE-LAB	lab(66.06, -17.58, -29.69)
CIE-LCH	lch(66.06, 34.50, 239.37°)
OKLab	oklab(70% -0.0769 -0.0831)
OKLCH	oklch(70% 0.113 227.2)
XYZ	xyz(28.8723, 35.3959, 68.2483)
Luminance	0.3540 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40ACD5 #D56940

analogous

#40D5B3 #40ACD5 #4062D5

triadic

#40ACD5 #D540AC #ACD540

tetradic

#40ACD5 #B340D5 #D56940 #62D540

square

#40ACD5 #B340D5 #D56940 #62D540

split-complementary

#40ACD5 #D54062 #D5B340

monochromatic

#1C647F #278BB1 #40ACD5 #72C2E0 #A4D8EB

Accessibility & contrast

On white

2.60

#40ACD5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.08

#40ACD5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40ACD5

8.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40ACD5	#FFFFFF	#000000	##000000
##40ACD5	1.00	2.60	8.08	8.08
#FFFFFF	2.60	1.00	21.00	21.00
#000000	8.08	21.00	1.00	1.00
##000000	8.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#96A9D7

Deuteranopia (green-blind)

#829AD4

Tritanopia (blue-blind)

#00B8B9

Achromatopsia (no color)

#A1A1A1

Design tokens & code

CSS

--color: #40acd5;
/* rgb */ color: rgb(64, 172, 213);
/* oklch */ color: oklch(70.0% 0.113 227.2);

Tailwind

colors: {
  custom: {
    50: '#87c4e2',
    500: '#40acd5',
    950: '#000000',
  },
}

SCSS

$custom: #40acd5;
$custom-light: #87c4e2;
$custom-dark: #000000;

JSON

{
  "hex": "#40acd5",
  "rgb": {
    "r": 64,
    "g": 172,
    "b": 213
  },
  "hsl": {
    "h": 196.51,
    "s": 63.948,
    "l": 54.314
  },
  "oklch": {
    "l": 0.70001,
    "c": 0.11328,
    "h": 227.2
  },
  "luminance": 0.35399
}

Semantic roles & 50–950 ramp

primary

#40ACD5

secondary

#D8AA99

accent

#6F41E7

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1215

muted

#7E8183

Preview Lab

Preview with #40ACD5

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

Preview Lab → · Contrast checker → · Palette generator →