#40D9E3#40D9E3

#40D9E3 is a light, vivid teal. Relative luminance 0.563; OKLCH L 81.2% C 0.124 H 201.5°. Best body text is #000000 at 12.25:1 contrast (WCAG AA passes).

Color values

HEX	#40D9E3
RGB	rgb(64, 217, 227)
HSL	hsl(184, 74%, 57%)
HSV	hsv(184, 72%, 89%)
CMYK	cmyk(71.8%, 4.4%, 0%, 11%)
CIE-LAB	lab(79.76, -35.62, -16.39)
CIE-LCH	lch(79.76, 39.21, 204.71°)
OKLab	oklab(81.19% -0.1153 -0.0455)
OKLCH	oklch(81.19% 0.124 201.5)
XYZ	xyz(40.7862, 56.2569, 81.3672)
Luminance	0.5626 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40D9E3 #E34A40

analogous

#40E39C #40D9E3 #4088E3

triadic

#40D9E3 #E340D9 #D9E340

tetradic

#40D9E3 #9C40E3 #E34A40 #88E340

square

#40D9E3 #9C40E3 #E34A40 #88E340

split-complementary

#40D9E3 #E34088 #E39C40

monochromatic

#168B93 #1DBEC8 #40D9E3 #75E4EB #ABEEF3

Accessibility & contrast

On white

1.71

#40D9E3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.25

#40D9E3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40D9E3

12.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40D9E3	#FFFFFF	#000000	##000000
##40D9E3	1.00	1.71	12.25	12.25
#FFFFFF	1.71	1.00	21.00	21.00
#000000	12.25	21.00	1.00	1.00
##000000	12.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C8D0E4

Deuteranopia (green-blind)

#B1BEE4

Tritanopia (blue-blind)

#00E1DC

Achromatopsia (no color)

#C6C6C6

Design tokens & code

CSS

--color: #40d9e3;
/* rgb */ color: rgb(64, 217, 227);
/* oklch */ color: oklch(81.2% 0.124 201.5);

Tailwind

colors: {
  custom: {
    50: '#8de5eb',
    500: '#40d9e3',
    950: '#000000',
  },
}

SCSS

$custom: #40d9e3;
$custom-light: #8de5eb;
$custom-dark: #000000;

JSON

{
  "hex": "#40d9e3",
  "rgb": {
    "r": 64,
    "g": 217,
    "b": 227
  },
  "hsl": {
    "h": 183.681,
    "s": 74.429,
    "l": 57.059
  },
  "oklch": {
    "l": 0.81195,
    "c": 0.12399,
    "h": 201.5
  },
  "luminance": 0.56262
}

Semantic roles & 50–950 ramp

primary

#40D9E3

secondary

#973630

accent

#4237F1

background

#FCFEFE

surface

#F5FCFD

border

#CFD5D5

text

#0E1616

muted

#7F8484

Preview Lab

Preview with #40D9E3

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

Preview Lab → · Contrast checker → · Palette generator →