#40B589#40B589

#40B589 is a light, vivid teal. Relative luminance 0.359; OKLCH L 69.6% C 0.124 H 164.5°. Best body text is #000000 at 8.19:1 contrast (WCAG AA passes).

Color values

HEX	#40B589
RGB	rgb(64, 181, 137)
HSL	hsl(157, 48%, 48%)
HSV	hsv(157, 65%, 71%)
CMYK	cmyk(64.6%, 0%, 24.3%, 29%)
CIE-LAB	lab(66.48, -43.24, 12.96)
CIE-LCH	lch(66.48, 45.14, 163.31°)
OKLab	oklab(69.58% -0.1193 0.0331)
OKLCH	oklch(69.58% 0.124 164.5)
XYZ	xyz(23.1512, 35.9414, 29.3794)
Luminance	0.3594 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B589 #B5406C

analogous

#40B54E #40B589 #40A6B5

triadic

#40B589 #8940B5 #B58940

tetradic

#40B589 #4E40B5 #B5406C #A6B540

square

#40B589 #4E40B5 #B5406C #A6B540

split-complementary

#40B589 #B540A6 #B54E40

monochromatic

#205B45 #308867 #40B589 #68CAA5 #96DAC0

Accessibility & contrast

On white

2.56

#40B589 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.19

#40B589 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B589

8.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B589	#FFFFFF	#000000	##000000
##40B589	1.00	2.56	8.19	8.19
#FFFFFF	2.56	1.00	21.00	21.00
#000000	8.19	21.00	1.00	1.00
##000000	8.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B2A887

Deuteranopia (green-blind)

#A29D8C

Tritanopia (blue-blind)

#00B5A9

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #40b589;
/* rgb */ color: rgb(64, 181, 137);
/* oklch */ color: oklch(69.6% 0.124 164.5);

Tailwind

colors: {
  custom: {
    50: '#82ccab',
    500: '#40b589',
    950: '#000000',
  },
}

SCSS

$custom: #40b589;
$custom-light: #82ccab;
$custom-dark: #000000;

JSON

{
  "hex": "#40b589",
  "rgb": {
    "r": 64,
    "g": 181,
    "b": 137
  },
  "hsl": {
    "h": 157.436,
    "s": 47.755,
    "l": 48.039
  },
  "oklch": {
    "l": 0.69577,
    "c": 0.12381,
    "h": 164.5
  },
  "luminance": 0.35944
}

Semantic roles & 50–950 ramp

primary

#40B589

secondary

#C58BA1

accent

#5083D7

background

#F8FCFA

surface

#F0F9F4

border

#CBD2CE

text

#0C1310

muted

#7D827F

Preview Lab

Preview with #40B589

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

Preview Lab → · Contrast checker → · Palette generator →