#40C9DB#40C9DB

#40C9DB is a light, moderate teal. Relative luminance 0.480; OKLCH L 77.1% C 0.117 H 207.8°. Best body text is #000000 at 10.60:1 contrast (WCAG AA passes).

Color values

HEX	#40C9DB
RGB	rgb(64, 201, 219)
HSL	hsl(187, 68%, 55%)
HSV	hsv(187, 71%, 86%)
CMYK	cmyk(70.8%, 8.2%, 0%, 14.1%)
CIE-LAB	lab(74.81, -30.38, -19.57)
CIE-LCH	lch(74.81, 36.14, 212.79°)
OKLab	oklab(77.11% -0.1031 -0.0544)
OKLCH	oklch(77.11% 0.117 207.8)
XYZ	xyz(35.7816, 47.9736, 74.3781)
Luminance	0.4798 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40C9DB #DB5240

analogous

#40DBA0 #40C9DB #407BDB

triadic

#40C9DB #DB40C9 #C9DB40

tetradic

#40C9DB #A040DB #DB5240 #7BDB40

square

#40C9DB #A040DB #DB5240 #7BDB40

split-complementary

#40C9DB #DB407B #DBA040

monochromatic

#197A87 #23A9BB #40C9DB #73D8E5 #A7E6EE

Accessibility & contrast

On white

1.98

#40C9DB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.60

#40C9DB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40C9DB

10.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40C9DB	#FFFFFF	#000000	##000000
##40C9DB	1.00	1.98	10.60	10.60
#FFFFFF	1.98	1.00	21.00	21.00
#000000	10.60	21.00	1.00	1.00
##000000	10.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B8C1DC

Deuteranopia (green-blind)

#A2B1DB

Tritanopia (blue-blind)

#00D2CE

Achromatopsia (no color)

#B8B8B8

Design tokens & code

CSS

--color: #40c9db;
/* rgb */ color: rgb(64, 201, 219);
/* oklch */ color: oklch(77.1% 0.117 207.8);

Tailwind

colors: {
  custom: {
    50: '#8ad9e6',
    500: '#40c9db',
    950: '#000000',
  },
}

SCSS

$custom: #40c9db;
$custom-light: #8ad9e6;
$custom-dark: #000000;

JSON

{
  "hex": "#40c9db",
  "rgb": {
    "r": 64,
    "g": 201,
    "b": 219
  },
  "hsl": {
    "h": 186.968,
    "s": 68.282,
    "l": 55.49
  },
  "oklch": {
    "l": 0.77106,
    "c": 0.11661,
    "h": 207.8
  },
  "luminance": 0.47978
}

Semantic roles & 50–950 ramp

primary

#40C9DB

secondary

#DCA39B

accent

#513DEB

background

#F9FDFE

surface

#F2FAFC

border

#CCD3D5

text

#0D1515

muted

#7E8384

Preview Lab

Preview with #40C9DB

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

Preview Lab → · Contrast checker → · Palette generator →