#40D4DF#40D4DF

#40D4DF is a light, vivid teal. Relative luminance 0.535; OKLCH L 79.9% C 0.121 H 202.4°. Best body text is #000000 at 11.70:1 contrast (WCAG AA passes).

Color values

HEX	#40D4DF
RGB	rgb(64, 212, 223)
HSL	hsl(184, 71%, 56%)
HSV	hsv(184, 71%, 87%)
CMYK	cmyk(71.3%, 4.9%, 0%, 12.5%)
CIE-LAB	lab(78.17, -34.45, -16.65)
CIE-LCH	lch(78.17, 38.26, 205.79°)
OKLab	oklab(79.87% -0.1122 -0.0462)
OKLCH	oklch(79.87% 0.121 202.4)
XYZ	xyz(38.9712, 53.5001, 78.0704)
Luminance	0.5351 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40D4DF #DF4B40

analogous

#40DF9B #40D4DF #4085DF

triadic

#40D4DF #DF40D4 #D4DF40

tetradic

#40D4DF #9B40DF #DF4B40 #85DF40

square

#40D4DF #9B40DF #DF4B40 #85DF40

split-complementary

#40D4DF #DF4085 #DF9B40

monochromatic

#18858D #20B6C1 #40D4DF #74E0E8 #A9ECF1

Accessibility & contrast

On white

1.79

#40D4DF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.70

#40D4DF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40D4DF

11.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40D4DF	#FFFFFF	#000000	##000000
##40D4DF	1.00	1.79	11.70	11.70
#FFFFFF	1.79	1.00	21.00	21.00
#000000	11.70	21.00	1.00	1.00
##000000	11.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C4CBE0

Deuteranopia (green-blind)

#ADBAE0

Tritanopia (blue-blind)

#00DCD7

Achromatopsia (no color)

#C1C1C1

Design tokens & code

CSS

--color: #40d4df;
/* rgb */ color: rgb(64, 212, 223);
/* oklch */ color: oklch(79.9% 0.121 202.4);

Tailwind

colors: {
  custom: {
    50: '#8ce1e9',
    500: '#40d4df',
    950: '#000000',
  },
}

SCSS

$custom: #40d4df;
$custom-light: #8ce1e9;
$custom-dark: #000000;

JSON

{
  "hex": "#40d4df",
  "rgb": {
    "r": 64,
    "g": 212,
    "b": 223
  },
  "hsl": {
    "h": 184.151,
    "s": 71.3,
    "l": 56.275
  },
  "oklch": {
    "l": 0.79866,
    "c": 0.12133,
    "h": 202.4
  },
  "luminance": 0.53505
}

Semantic roles & 50–950 ramp

primary

#40D4DF

secondary

#923831

accent

#463AEE

background

#FCFEFE

surface

#F5FCFC

border

#CFD5D5

text

#0E1516

muted

#7F8484

Preview Lab

Preview with #40D4DF

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

Preview Lab → · Contrast checker → · Palette generator →