#40B6D5#40B6D5

#40B6D5 is a light, moderate cyan. Relative luminance 0.394; OKLCH L 72.4% C 0.112 H 219.0°. Best body text is #000000 at 8.87:1 contrast (WCAG AA passes).

Color values

HEX	#40B6D5
RGB	rgb(64, 182, 213)
HSL	hsl(192, 64%, 54%)
HSV	hsv(192, 70%, 84%)
CMYK	cmyk(70%, 14.6%, 0%, 16.5%)
CIE-LAB	lab(69.00, -22.78, -25.16)
CIE-LCH	lch(69.00, 33.94, 227.84°)
OKLab	oklab(72.36% -0.0868 -0.0702)
OKLCH	oklch(72.36% 0.112 219)
XYZ	xyz(30.8476, 39.3465, 68.9068)
Luminance	0.3935 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B6D5 #D55F40

analogous

#40D5A9 #40B6D5 #406CD5

triadic

#40B6D5 #D540B6 #B6D540

tetradic

#40B6D5 #A940D5 #D55F40 #6CD540

square

#40B6D5 #A940D5 #D55F40 #6CD540

split-complementary

#40B6D5 #D5406C #D5A940

monochromatic

#1C6A7F #2794B1 #40B6D5 #72C9E0 #A4DCEB

Accessibility & contrast

On white

2.37

#40B6D5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.87

#40B6D5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B6D5

8.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B6D5	#FFFFFF	#000000	##000000
##40B6D5	1.00	2.37	8.87	8.87
#FFFFFF	2.37	1.00	21.00	21.00
#000000	8.87	21.00	1.00	1.00
##000000	8.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A3B1D7

Deuteranopia (green-blind)

#8EA2D5

Tritanopia (blue-blind)

#00C0C0

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #40b6d5;
/* rgb */ color: rgb(64, 182, 213);
/* oklch */ color: oklch(72.4% 0.112 219.0);

Tailwind

colors: {
  custom: {
    50: '#88cce2',
    500: '#40b6d5',
    950: '#000000',
  },
}

SCSS

$custom: #40b6d5;
$custom-light: #88cce2;
$custom-dark: #000000;

JSON

{
  "hex": "#40b6d5",
  "rgb": {
    "r": 64,
    "g": 182,
    "b": 213
  },
  "hsl": {
    "h": 192.483,
    "s": 63.948,
    "l": 54.314
  },
  "oklch": {
    "l": 0.72362,
    "c": 0.11165,
    "h": 219
  },
  "luminance": 0.3935
}

Semantic roles & 50–950 ramp

primary

#40B6D5

secondary

#D8A699

accent

#6341E7

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #40B6D5

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

Preview Lab → · Contrast checker → · Palette generator →