#40D5DF#40D5DF

#40D5DF is a light, vivid teal. Relative luminance 0.540; OKLCH L 80.1% C 0.122 H 201.7°. Best body text is #000000 at 11.80:1 contrast (WCAG AA passes).

Color values

HEX	#40D5DF
RGB	rgb(64, 213, 223)
HSL	hsl(184, 71%, 56%)
HSV	hsv(184, 71%, 87%)
CMYK	cmyk(71.3%, 4.5%, 0%, 12.5%)
CIE-LAB	lab(78.46, -34.92, -16.21)
CIE-LCH	lch(78.46, 38.49, 204.90°)
OKLab	oklab(80.1% -0.1131 -0.045)
OKLCH	oklch(80.1% 0.122 201.7)
XYZ	xyz(39.2220, 54.0015, 78.1539)
Luminance	0.5401 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40D5DF #DF4A40

analogous

#40DF9A #40D5DF #4086DF

triadic

#40D5DF #DF40D5 #D5DF40

tetradic

#40D5DF #9A40DF #DF4A40 #86DF40

square

#40D5DF #9A40DF #DF4A40 #86DF40

split-complementary

#40D5DF #DF4086 #DF9A40

monochromatic

#18868D #20B7C1 #40D5DF #74E1E8 #A9ECF1

Accessibility & contrast

On white

1.78

#40D5DF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.80

#40D5DF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40D5DF

11.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40D5DF	#FFFFFF	#000000	##000000
##40D5DF	1.00	1.78	11.80	11.80
#FFFFFF	1.78	1.00	21.00	21.00
#000000	11.80	21.00	1.00	1.00
##000000	11.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C5CCE0

Deuteranopia (green-blind)

#AEBBE0

Tritanopia (blue-blind)

#00DDD8

Achromatopsia (no color)

#C2C2C2

Design tokens & code

CSS

--color: #40d5df;
/* rgb */ color: rgb(64, 213, 223);
/* oklch */ color: oklch(80.1% 0.122 201.7);

Tailwind

colors: {
  custom: {
    50: '#8ce2e9',
    500: '#40d5df',
    950: '#000000',
  },
}

SCSS

$custom: #40d5df;
$custom-light: #8ce2e9;
$custom-dark: #000000;

JSON

{
  "hex": "#40d5df",
  "rgb": {
    "r": 64,
    "g": 213,
    "b": 223
  },
  "hsl": {
    "h": 183.774,
    "s": 71.3,
    "l": 56.275
  },
  "oklch": {
    "l": 0.80103,
    "c": 0.12176,
    "h": 201.7
  },
  "luminance": 0.54006
}

Semantic roles & 50–950 ramp

primary

#40D5DF

secondary

#923731

accent

#453AEE

background

#FCFEFE

surface

#F5FCFC

border

#CFD5D5

text

#0E1516

muted

#7F8484

Preview Lab

Preview with #40D5DF

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

Preview Lab → · Contrast checker → · Palette generator →