#40D9CC#40D9CC

#40D9CC is a light, vivid teal. Relative luminance 0.551; OKLCH L 80.4% C 0.126 H 186.6°. Best body text is #000000 at 12.01:1 contrast (WCAG AA passes).

Color values

HEX	#40D9CC
RGB	rgb(64, 217, 204)
HSL	hsl(175, 67%, 55%)
HSV	hsv(175, 71%, 85%)
CMYK	cmyk(70.5%, 0%, 6%, 14.9%)
CIE-LAB	lab(79.08, -42.07, -5.11)
CIE-LCH	lch(79.08, 42.38, 186.93°)
OKLab	oklab(80.42% -0.1252 -0.0145)
OKLCH	oklch(80.42% 0.126 186.6)
XYZ	xyz(37.8211, 55.0709, 65.7515)
Luminance	0.5507 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40D9CC #D9404D

analogous

#40D980 #40D9CC #4099D9

triadic

#40D9CC #CC40D9 #D9CC40

tetradic

#40D9CC #8040D9 #D9404D #99D940

square

#40D9CC #8040D9 #D9404D #99D940

split-complementary

#40D9CC #D94099 #D98040

monochromatic

#1A847B #24B7AB #40D9CC #73E3DA #A6EDE7

Accessibility & contrast

On white

1.75

#40D9CC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.01

#40D9CC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40D9CC

12.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40D9CC	#FFFFFF	#000000	##000000
##40D9CC	1.00	1.75	12.01	12.01
#FFFFFF	1.75	1.00	21.00	21.00
#000000	12.01	21.00	1.00	1.00
##000000	12.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CECDCC

Deuteranopia (green-blind)

#B8BDCE

Tritanopia (blue-blind)

#00DED5

Achromatopsia (no color)

#C4C4C4

Design tokens & code

CSS

--color: #40d9cc;
/* rgb */ color: rgb(64, 217, 204);
/* oklch */ color: oklch(80.4% 0.126 186.6);

Tailwind

colors: {
  custom: {
    50: '#8be5db',
    500: '#40d9cc',
    950: '#000000',
  },
}

SCSS

$custom: #40d9cc;
$custom-light: #8be5db;
$custom-dark: #000000;

JSON

{
  "hex": "#40d9cc",
  "rgb": {
    "r": 64,
    "g": 217,
    "b": 204
  },
  "hsl": {
    "h": 174.902,
    "s": 66.812,
    "l": 55.098
  },
  "oklch": {
    "l": 0.8042,
    "c": 0.12601,
    "h": 186.6
  },
  "luminance": 0.55075
}

Semantic roles & 50–950 ramp

primary

#40D9CC

secondary

#8B323A

accent

#3E4DEA

background

#FCFEFE

surface

#F4FCFB

border

#CED5D4

text

#0D1615

muted

#7F8484

Preview Lab

Preview with #40D9CC

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

Preview Lab → · Contrast checker → · Palette generator →