#40D8E3#40D8E3

#40D8E3 is a light, vivid teal. Relative luminance 0.557; OKLCH L 81.0% C 0.124 H 202.2°. Best body text is #000000 at 12.15:1 contrast (WCAG AA passes).

Color values

HEX	#40D8E3
RGB	rgb(64, 216, 227)
HSL	hsl(184, 74%, 57%)
HSV	hsv(184, 72%, 89%)
CMYK	cmyk(71.8%, 4.8%, 0%, 11%)
CIE-LAB	lab(79.47, -35.16, -16.83)
CIE-LCH	lch(79.47, 38.98, 205.58°)
OKLab	oklab(80.96% -0.1144 -0.0467)
OKLCH	oklch(80.96% 0.124 202.2)
XYZ	xyz(40.5292, 55.7429, 81.2816)
Luminance	0.5575 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40D8E3 #E34B40

analogous

#40E39D #40D8E3 #4087E3

triadic

#40D8E3 #E340D8 #D8E340

tetradic

#40D8E3 #9D40E3 #E34B40 #87E340

square

#40D8E3 #9D40E3 #E34B40 #87E340

split-complementary

#40D8E3 #E34087 #E39D40

monochromatic

#168B93 #1DBDC8 #40D8E3 #75E3EB #ABEEF3

Accessibility & contrast

On white

1.73

#40D8E3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.15

#40D8E3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40D8E3

12.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40D8E3	#FFFFFF	#000000	##000000
##40D8E3	1.00	1.73	12.15	12.15
#FFFFFF	1.73	1.00	21.00	21.00
#000000	12.15	21.00	1.00	1.00
##000000	12.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C7CFE4

Deuteranopia (green-blind)

#B0BEE4

Tritanopia (blue-blind)

#00E0DB

Achromatopsia (no color)

#C5C5C5

Design tokens & code

CSS

--color: #40d8e3;
/* rgb */ color: rgb(64, 216, 227);
/* oklch */ color: oklch(81.0% 0.124 202.2);

Tailwind

colors: {
  custom: {
    50: '#8ce4eb',
    500: '#40d8e3',
    950: '#000000',
  },
}

SCSS

$custom: #40d8e3;
$custom-light: #8ce4eb;
$custom-dark: #000000;

JSON

{
  "hex": "#40d8e3",
  "rgb": {
    "r": 64,
    "g": 216,
    "b": 227
  },
  "hsl": {
    "h": 184.049,
    "s": 74.429,
    "l": 57.059
  },
  "oklch": {
    "l": 0.80958,
    "c": 0.12356,
    "h": 202.2
  },
  "luminance": 0.55748
}

Semantic roles & 50–950 ramp

primary

#40D8E3

secondary

#973730

accent

#4337F1

background

#FCFEFE

surface

#F5FCFD

border

#CFD5D5

text

#0E1516

muted

#7F8484

Preview Lab

Preview with #40D8E3

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

Preview Lab → · Contrast checker → · Palette generator →