#40B2D0#40B2D0

#40B2D0 is a light, moderate cyan. Relative luminance 0.375; OKLCH L 71.2% C 0.109 H 218.9°. Best body text is #000000 at 8.50:1 contrast (WCAG AA passes).

Color values

HEX	#40B2D0
RGB	rgb(64, 178, 208)
HSL	hsl(193, 61%, 53%)
HSV	hsv(193, 69%, 82%)
CMYK	cmyk(69.2%, 14.4%, 0%, 18.4%)
CIE-LAB	lab(67.64, -22.30, -24.50)
CIE-LCH	lch(67.64, 33.13, 227.69°)
OKLab	oklab(71.21% -0.0848 -0.0683)
OKLCH	oklch(71.21% 0.109 218.9)
XYZ	xyz(29.4152, 37.4815, 65.3467)
Luminance	0.3749 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B2D0 #D05E40

analogous

#40D0A6 #40B2D0 #406AD0

triadic

#40B2D0 #D040B2 #B2D040

tetradic

#40B2D0 #A640D0 #D05E40 #6AD040

square

#40B2D0 #A640D0 #D05E40 #6AD040

split-complementary

#40B2D0 #D0406A #D0A640

monochromatic

#1E6578 #2A8FA9 #40B2D0 #71C6DC #A2DAE8

Accessibility & contrast

On white

2.47

#40B2D0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.50

#40B2D0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B2D0

8.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B2D0	#FFFFFF	#000000	##000000
##40B2D0	1.00	2.47	8.50	8.50
#FFFFFF	2.47	1.00	21.00	21.00
#000000	8.50	21.00	1.00	1.00
##000000	8.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9FADD2

Deuteranopia (green-blind)

#8B9ED0

Tritanopia (blue-blind)

#00BCBB

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #40b2d0;
/* rgb */ color: rgb(64, 178, 208);
/* oklch */ color: oklch(71.2% 0.109 218.9);

Tailwind

colors: {
  custom: {
    50: '#87c9de',
    500: '#40b2d0',
    950: '#000000',
  },
}

SCSS

$custom: #40b2d0;
$custom-light: #87c9de;
$custom-dark: #000000;

JSON

{
  "hex": "#40b2d0",
  "rgb": {
    "r": 64,
    "g": 178,
    "b": 208
  },
  "hsl": {
    "h": 192.5,
    "s": 60.504,
    "l": 53.333
  },
  "oklch": {
    "l": 0.71205,
    "c": 0.10889,
    "h": 218.9
  },
  "luminance": 0.37485
}

Semantic roles & 50–950 ramp

primary

#40B2D0

secondary

#D5A497

accent

#6544E4

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0D1315

muted

#7D8283

Preview Lab

Preview with #40B2D0

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

Preview Lab → · Contrast checker → · Palette generator →