#40D9CF#40D9CF

#40D9CF is a light, vivid teal. Relative luminance 0.552; OKLCH L 80.5% C 0.125 H 188.5°. Best body text is #000000 at 12.04:1 contrast (WCAG AA passes).

Color values

HEX	#40D9CF
RGB	rgb(64, 217, 207)
HSL	hsl(176, 67%, 55%)
HSV	hsv(176, 71%, 85%)
CMYK	cmyk(70.5%, 0%, 4.6%, 14.9%)
CIE-LAB	lab(79.17, -41.26, -6.59)
CIE-LCH	lch(79.17, 41.78, 189.08°)
OKLab	oklab(80.52% -0.1238 -0.0185)
OKLCH	oklch(80.52% 0.125 188.5)
XYZ	xyz(38.1844, 55.2162, 67.6647)
Luminance	0.5522 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40D9CF #D9404A

analogous

#40D982 #40D9CF #4097D9

triadic

#40D9CF #CF40D9 #D9CF40

tetradic

#40D9CF #8240D9 #D9404A #97D940

square

#40D9CF #8240D9 #D9404A #97D940

split-complementary

#40D9CF #D94097 #D98240

monochromatic

#1A847D #24B7AE #40D9CF #73E3DC #A6EDE9

Accessibility & contrast

On white

1.74

#40D9CF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.04

#40D9CF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40D9CF

12.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40D9CF	#FFFFFF	#000000	##000000
##40D9CF	1.00	1.74	12.04	12.04
#FFFFFF	1.74	1.00	21.00	21.00
#000000	12.04	21.00	1.00	1.00
##000000	12.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CDCDCF

Deuteranopia (green-blind)

#B7BDD0

Tritanopia (blue-blind)

#00DED6

Achromatopsia (no color)

#C4C4C4

Design tokens & code

CSS

--color: #40d9cf;
/* rgb */ color: rgb(64, 217, 207);
/* oklch */ color: oklch(80.5% 0.125 188.5);

Tailwind

colors: {
  custom: {
    50: '#8be5dd',
    500: '#40d9cf',
    950: '#000000',
  },
}

SCSS

$custom: #40d9cf;
$custom-light: #8be5dd;
$custom-dark: #000000;

JSON

{
  "hex": "#40d9cf",
  "rgb": {
    "r": 64,
    "g": 217,
    "b": 207
  },
  "hsl": {
    "h": 176.078,
    "s": 66.812,
    "l": 55.098
  },
  "oklch": {
    "l": 0.80516,
    "c": 0.12523,
    "h": 188.5
  },
  "luminance": 0.55221
}

Semantic roles & 50–950 ramp

primary

#40D9CF

secondary

#8B3238

accent

#3E49EA

background

#FCFEFE

surface

#F5FCFC

border

#CFD5D5

text

#0E1615

muted

#7F8484

Preview Lab

Preview with #40D9CF

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

Preview Lab → · Contrast checker → · Palette generator →