#40B591#40B591

#40B591 is a light, moderate teal. Relative luminance 0.362; OKLCH L 69.8% C 0.118 H 168.9°. Best body text is #000000 at 8.24:1 contrast (WCAG AA passes).

Color values

HEX	#40B591
RGB	rgb(64, 181, 145)
HSL	hsl(162, 48%, 48%)
HSV	hsv(162, 65%, 71%)
CMYK	cmyk(64.6%, 0%, 19.9%, 29%)
CIE-LAB	lab(66.66, -41.37, 8.83)
CIE-LCH	lch(66.66, 42.30, 167.95°)
OKLab	oklab(69.79% -0.1155 0.0226)
OKLCH	oklch(69.79% 0.118 168.9)
XYZ	xyz(23.7465, 36.1795, 32.5145)
Luminance	0.3618 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B591 #B54064

analogous

#40B556 #40B591 #409FB5

triadic

#40B591 #9140B5 #B59140

tetradic

#40B591 #5640B5 #B54064 #9FB540

square

#40B591 #5640B5 #B54064 #9FB540

split-complementary

#40B591 #B5409F #B55640

monochromatic

#205B49 #30886D #40B591 #68CAAC #96DAC5

Accessibility & contrast

On white

2.55

#40B591 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.24

#40B591 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B591

8.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B591	#FFFFFF	#000000	##000000
##40B591	1.00	2.55	8.24	8.24
#FFFFFF	2.55	1.00	21.00	21.00
#000000	8.24	21.00	1.00	1.00
##000000	8.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B0A98F

Deuteranopia (green-blind)

#A09D93

Tritanopia (blue-blind)

#00B6AB

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #40b591;
/* rgb */ color: rgb(64, 181, 145);
/* oklch */ color: oklch(69.8% 0.118 168.9);

Tailwind

colors: {
  custom: {
    50: '#82ccb1',
    500: '#40b591',
    950: '#000000',
  },
}

SCSS

$custom: #40b591;
$custom-light: #82ccb1;
$custom-dark: #000000;

JSON

{
  "hex": "#40b591",
  "rgb": {
    "r": 64,
    "g": 181,
    "b": 145
  },
  "hsl": {
    "h": 161.538,
    "s": 47.755,
    "l": 48.039
  },
  "oklch": {
    "l": 0.69786,
    "c": 0.1177,
    "h": 168.9
  },
  "luminance": 0.36182
}

Semantic roles & 50–950 ramp

primary

#40B591

secondary

#C58B9D

accent

#507AD7

background

#F8FCFA

surface

#F0F9F5

border

#CBD2CF

text

#0C1310

muted

#7D827F

Preview Lab

Preview with #40B591

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

Preview Lab → · Contrast checker → · Palette generator →