#40BBD7#40BBD7

#40BBD7 is a light, moderate cyan. Relative luminance 0.415; OKLCH L 73.6% C 0.113 H 216.2°. Best body text is #000000 at 9.31:1 contrast (WCAG AA passes).

Color values

HEX	#40BBD7
RGB	rgb(64, 187, 215)
HSL	hsl(191, 65%, 55%)
HSV	hsv(191, 70%, 84%)
CMYK	cmyk(70.2%, 13%, 0%, 15.7%)
CIE-LAB	lab(70.55, -24.69, -23.88)
CIE-LCH	lch(70.55, 34.35, 224.05°)
OKLab	oklab(73.63% -0.091 -0.0666)
OKLCH	oklch(73.63% 0.113 216.2)
XYZ	xyz(32.1453, 41.5332, 70.5994)
Luminance	0.4154 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40BBD7 #D75C40

analogous

#40D7A8 #40BBD7 #406FD7

triadic

#40BBD7 #D740BB #BBD740

tetradic

#40BBD7 #A840D7 #D75C40 #6FD740

square

#40BBD7 #A840D7 #D75C40 #6FD740

split-complementary

#40BBD7 #D7406F #D7A840

monochromatic

#1B6F81 #269AB4 #40BBD7 #73CDE2 #A5DFEC

Accessibility & contrast

On white

2.26

#40BBD7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.31

#40BBD7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40BBD7

9.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40BBD7	#FFFFFF	#000000	##000000
##40BBD7	1.00	2.26	9.31	9.31
#FFFFFF	2.26	1.00	21.00	21.00
#000000	9.31	21.00	1.00	1.00
##000000	9.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A8B5D9

Deuteranopia (green-blind)

#93A6D7

Tritanopia (blue-blind)

#00C5C4

Achromatopsia (no color)

#ADADAD

Design tokens & code

CSS

--color: #40bbd7;
/* rgb */ color: rgb(64, 187, 215);
/* oklch */ color: oklch(73.6% 0.113 216.2);

Tailwind

colors: {
  custom: {
    50: '#88cfe3',
    500: '#40bbd7',
    950: '#000000',
  },
}

SCSS

$custom: #40bbd7;
$custom-light: #88cfe3;
$custom-dark: #000000;

JSON

{
  "hex": "#40bbd7",
  "rgb": {
    "r": 64,
    "g": 187,
    "b": 215
  },
  "hsl": {
    "h": 191.126,
    "s": 65.368,
    "l": 54.706
  },
  "oklch": {
    "l": 0.73628,
    "c": 0.11275,
    "h": 216.2
  },
  "luminance": 0.41537
}

Semantic roles & 50–950 ramp

primary

#40BBD7

secondary

#D9A59A

accent

#5F3FE8

background

#F9FCFD

surface

#F1F9FB

border

#CBD2D4

text

#0D1415

muted

#7E8283

Preview Lab

Preview with #40BBD7

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

Preview Lab → · Contrast checker → · Palette generator →