#40E3DF#40E3DF

#40E3DF is a very light, vivid teal. Relative luminance 0.614; OKLCH L 83.4% C 0.130 H 192.5°. Best body text is #000000 at 13.27:1 contrast (WCAG AA passes).

Color values

HEX	#40E3DF
RGB	rgb(64, 227, 223)
HSL	hsl(179, 74%, 57%)
HSV	hsv(179, 72%, 89%)
CMYK	cmyk(71.8%, 0%, 1.8%, 11%)
CIE-LAB	lab(82.57, -41.33, -10.06)
CIE-LCH	lch(82.57, 42.53, 193.68°)
OKLab	oklab(83.43% -0.1266 -0.028)
OKLCH	oklch(83.43% 0.13 192.5)
XYZ	xyz(42.8966, 61.3507, 79.3788)
Luminance	0.6136 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40E3DF #E34044

analogous

#40E38E #40E3DF #4095E3

triadic

#40E3DF #DF40E3 #E3DF40

tetradic

#40E3DF #8E40E3 #E34044 #95E340

square

#40E3DF #8E40E3 #E34044 #95E340

split-complementary

#40E3DF #E34095 #E38E40

monochromatic

#169390 #1DC8C4 #40E3DF #75EBE8 #ABF3F1

Accessibility & contrast

On white

1.58

#40E3DF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.27

#40E3DF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40E3DF

13.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40E3DF	#FFFFFF	#000000	##000000
##40E3DF	1.00	1.58	13.27	13.27
#FFFFFF	1.58	1.00	21.00	21.00
#000000	13.27	21.00	1.00	1.00
##000000	13.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D5D7DF

Deuteranopia (green-blind)

#BDC6E0

Tritanopia (blue-blind)

#00EAE1

Achromatopsia (no color)

#CDCDCD

Design tokens & code

CSS

--color: #40e3df;
/* rgb */ color: rgb(64, 227, 223);
/* oklch */ color: oklch(83.4% 0.130 192.5);

Tailwind

colors: {
  custom: {
    50: '#8dece8',
    500: '#40e3df',
    950: '#000000',
  },
}

SCSS

$custom: #40e3df;
$custom-light: #8dece8;
$custom-dark: #000000;

JSON

{
  "hex": "#40e3df",
  "rgb": {
    "r": 64,
    "g": 227,
    "b": 223
  },
  "hsl": {
    "h": 178.528,
    "s": 74.429,
    "l": 57.059
  },
  "oklch": {
    "l": 0.83432,
    "c": 0.12968,
    "h": 192.5
  },
  "luminance": 0.61356
}

Semantic roles & 50–950 ramp

primary

#40E3DF

secondary

#973032

accent

#373BF1

background

#FCFFFE

surface

#F5FEFC

border

#CFD6D5

text

#0E1616

muted

#7F8584

Preview Lab

Preview with #40E3DF

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

Preview Lab → · Contrast checker → · Palette generator →