#40B6D0#40B6D0

#40B6D0 is a light, moderate cyan. Relative luminance 0.391; OKLCH L 72.2% C 0.109 H 215.4°. Best body text is #000000 at 8.82:1 contrast (WCAG AA passes).

Color values

HEX	#40B6D0
RGB	rgb(64, 182, 208)
HSL	hsl(191, 61%, 53%)
HSV	hsv(191, 69%, 82%)
CMYK	cmyk(69.2%, 12.5%, 0%, 18.4%)
CIE-LAB	lab(68.82, -24.34, -22.69)
CIE-LCH	lch(68.82, 33.27, 222.99°)
OKLab	oklab(72.16% -0.0888 -0.0632)
OKLCH	oklch(72.16% 0.109 215.4)
XYZ	xyz(30.2227, 39.0965, 65.6158)
Luminance	0.3910 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B6D0 #D05A40

analogous

#40D0A2 #40B6D0 #406ED0

triadic

#40B6D0 #D040B6 #B6D040

tetradic

#40B6D0 #A240D0 #D05A40 #6ED040

square

#40B6D0 #A240D0 #D05A40 #6ED040

split-complementary

#40B6D0 #D0406E #D0A240

monochromatic

#1E6878 #2A92A9 #40B6D0 #71C9DC #A2DCE8

Accessibility & contrast

On white

2.38

#40B6D0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.82

#40B6D0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B6D0

8.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B6D0	#FFFFFF	#000000	##000000
##40B6D0	1.00	2.38	8.82	8.82
#FFFFFF	2.38	1.00	21.00	21.00
#000000	8.82	21.00	1.00	1.00
##000000	8.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A4B0D1

Deuteranopia (green-blind)

#90A2D0

Tritanopia (blue-blind)

#00C0BE

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #40b6d0;
/* rgb */ color: rgb(64, 182, 208);
/* oklch */ color: oklch(72.2% 0.109 215.4);

Tailwind

colors: {
  custom: {
    50: '#87ccde',
    500: '#40b6d0',
    950: '#000000',
  },
}

SCSS

$custom: #40b6d0;
$custom-light: #87ccde;
$custom-dark: #000000;

JSON

{
  "hex": "#40b6d0",
  "rgb": {
    "r": 64,
    "g": 182,
    "b": 208
  },
  "hsl": {
    "h": 190.833,
    "s": 60.504,
    "l": 53.333
  },
  "oklch": {
    "l": 0.72157,
    "c": 0.10898,
    "h": 215.4
  },
  "luminance": 0.391
}

Semantic roles & 50–950 ramp

primary

#40B6D0

secondary

#D5A297

accent

#6144E4

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #40B6D0

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

Preview Lab → · Contrast checker → · Palette generator →