#40B6D6#40B6D6

#40B6D6 is a light, moderate cyan. Relative luminance 0.394; OKLCH L 72.4% C 0.112 H 219.6°. Best body text is #000000 at 8.88:1 contrast (WCAG AA passes).

Color values

HEX	#40B6D6
RGB	rgb(64, 182, 214)
HSL	hsl(193, 65%, 55%)
HSV	hsv(193, 70%, 84%)
CMYK	cmyk(70.1%, 15%, 0%, 16.1%)
CIE-LAB	lab(69.04, -22.46, -25.65)
CIE-LCH	lch(69.04, 34.09, 228.79°)
OKLab	oklab(72.4% -0.0864 -0.0716)
OKLCH	oklch(72.4% 0.112 219.6)
XYZ	xyz(30.9749, 39.3974, 69.5773)
Luminance	0.3940 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B6D6 #D66040

analogous

#40D6AB #40B6D6 #406BD6

triadic

#40B6D6 #D640B6 #B6D640

tetradic

#40B6D6 #AB40D6 #D66040 #6BD640

square

#40B6D6 #AB40D6 #D66040 #6BD640

split-complementary

#40B6D6 #D6406B #D6AB40

monochromatic

#1B6B80 #2695B2 #40B6D6 #72C9E1 #A5DDEC

Accessibility & contrast

On white

2.36

#40B6D6 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.88

#40B6D6 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B6D6

8.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B6D6	#FFFFFF	#000000	##000000
##40B6D6	1.00	2.36	8.88	8.88
#FFFFFF	2.36	1.00	21.00	21.00
#000000	8.88	21.00	1.00	1.00
##000000	8.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A2B1D8

Deuteranopia (green-blind)

#8DA2D6

Tritanopia (blue-blind)

#00C1C0

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #40b6d6;
/* rgb */ color: rgb(64, 182, 214);
/* oklch */ color: oklch(72.4% 0.112 219.6);

Tailwind

colors: {
  custom: {
    50: '#88cce2',
    500: '#40b6d6',
    950: '#000000',
  },
}

SCSS

$custom: #40b6d6;
$custom-light: #88cce2;
$custom-dark: #000000;

JSON

{
  "hex": "#40b6d6",
  "rgb": {
    "r": 64,
    "g": 182,
    "b": 214
  },
  "hsl": {
    "h": 192.8,
    "s": 64.655,
    "l": 54.51
  },
  "oklch": {
    "l": 0.72403,
    "c": 0.11224,
    "h": 219.6
  },
  "luminance": 0.39401
}

Semantic roles & 50–950 ramp

primary

#40B6D6

secondary

#D9A799

accent

#6440E8

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #40B6D6

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

Preview Lab → · Contrast checker → · Palette generator →