#40B583#40B583

#40B583 is a light, vivid teal. Relative luminance 0.358; OKLCH L 69.4% C 0.129 H 161.5°. Best body text is #000000 at 8.16:1 contrast (WCAG AA passes).

Color values

HEX	#40B583
RGB	rgb(64, 181, 131)
HSL	hsl(154, 48%, 48%)
HSV	hsv(154, 65%, 71%)
CMYK	cmyk(64.6%, 0%, 27.6%, 29%)
CIE-LAB	lab(66.35, -44.58, 16.06)
CIE-LCH	lch(66.35, 47.38, 160.19°)
OKLab	oklab(69.43% -0.1221 0.0409)
OKLCH	oklch(69.43% 0.129 161.5)
XYZ	xyz(22.7327, 35.7740, 27.1754)
Luminance	0.3578 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B583 #B54072

analogous

#40B548 #40B583 #40ACB5

triadic

#40B583 #8340B5 #B58340

tetradic

#40B583 #4840B5 #B54072 #ACB540

square

#40B583 #4840B5 #B54072 #ACB540

split-complementary

#40B583 #B540AC #B54840

monochromatic

#205B42 #308862 #40B583 #68CAA0 #96DABD

Accessibility & contrast

On white

2.58

#40B583 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.16

#40B583 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B583

8.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B583	#FFFFFF	#000000	##000000
##40B583	1.00	2.58	8.16	8.16
#FFFFFF	2.58	1.00	21.00	21.00
#000000	8.16	21.00	1.00	1.00
##000000	8.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B2A880

Deuteranopia (green-blind)

#A39D86

Tritanopia (blue-blind)

#00B5A7

Achromatopsia (no color)

#A1A1A1

Design tokens & code

CSS

--color: #40b583;
/* rgb */ color: rgb(64, 181, 131);
/* oklch */ color: oklch(69.4% 0.129 161.5);

Tailwind

colors: {
  custom: {
    50: '#82cca7',
    500: '#40b583',
    950: '#000000',
  },
}

SCSS

$custom: #40b583;
$custom-light: #82cca7;
$custom-dark: #000000;

JSON

{
  "hex": "#40b583",
  "rgb": {
    "r": 64,
    "g": 181,
    "b": 131
  },
  "hsl": {
    "h": 154.359,
    "s": 47.755,
    "l": 48.039
  },
  "oklch": {
    "l": 0.6943,
    "c": 0.12882,
    "h": 161.5
  },
  "luminance": 0.35776
}

Semantic roles & 50–950 ramp

primary

#40B583

secondary

#C58BA4

accent

#508AD7

background

#F8FCFA

surface

#F0F9F4

border

#CBD2CE

text

#0B130F

muted

#7C827F

Preview Lab

Preview with #40B583

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

Preview Lab → · Contrast checker → · Palette generator →