#40B381#40B381

#40B381 is a light, vivid teal. Relative luminance 0.349; OKLCH L 68.9% C 0.128 H 161.2°. Best body text is #000000 at 7.98:1 contrast (WCAG AA passes).

Color values

HEX	#40B381
RGB	rgb(64, 179, 129)
HSL	hsl(154, 47%, 48%)
HSV	hsv(154, 64%, 70%)
CMYK	cmyk(64.2%, 0%, 27.9%, 29.8%)
CIE-LAB	lab(65.68, -44.17, 16.22)
CIE-LCH	lch(65.68, 47.06, 159.84°)
OKLab	oklab(68.87% -0.121 0.0413)
OKLCH	oklch(68.87% 0.128 161.2)
XYZ	xyz(22.1947, 34.9128, 26.3338)
Luminance	0.3492 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B381 #B34072

analogous

#40B347 #40B381 #40ABB3

triadic

#40B381 #8140B3 #B38140

tetradic

#40B381 #4740B3 #B34072 #ABB340

square

#40B381 #4740B3 #B34072 #ABB340

split-complementary

#40B381 #B340AB #B34740

monochromatic

#205940 #308661 #40B381 #67C99E #94D9BB

Accessibility & contrast

On white

2.63

#40B381 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.98

#40B381 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B381

7.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B381	#FFFFFF	#000000	##000000
##40B381	1.00	2.63	7.98	7.98
#FFFFFF	2.63	1.00	21.00	21.00
#000000	7.98	21.00	1.00	1.00
##000000	7.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B1A67E

Deuteranopia (green-blind)

#A19B84

Tritanopia (blue-blind)

#00B2A5

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #40b381;
/* rgb */ color: rgb(64, 179, 129);
/* oklch */ color: oklch(68.9% 0.128 161.2);

Tailwind

colors: {
  custom: {
    50: '#81caa5',
    500: '#40b381',
    950: '#000000',
  },
}

SCSS

$custom: #40b381;
$custom-light: #81caa5;
$custom-dark: #000000;

JSON

{
  "hex": "#40b381",
  "rgb": {
    "r": 64,
    "g": 179,
    "b": 129
  },
  "hsl": {
    "h": 153.913,
    "s": 47.325,
    "l": 47.647
  },
  "oklch": {
    "l": 0.6887,
    "c": 0.12784,
    "h": 161.2
  },
  "luminance": 0.34915
}

Semantic roles & 50–950 ramp

primary

#40B381

secondary

#C48AA4

accent

#518BD7

background

#F8FCFA

surface

#F0F8F4

border

#CBD1CE

text

#0B130F

muted

#7C827F

Preview Lab

Preview with #40B381

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

Preview Lab → · Contrast checker → · Palette generator →