#40B379#40B379

#40B379 is a light, vivid green. Relative luminance 0.347; OKLCH L 68.7% C 0.135 H 157.6°. Best body text is #000000 at 7.94:1 contrast (WCAG AA passes).

Color values

HEX	#40B379
RGB	rgb(64, 179, 121)
HSL	hsl(150, 47%, 48%)
HSV	hsv(150, 64%, 70%)
CMYK	cmyk(64.2%, 0%, 32.4%, 29.8%)
CIE-LAB	lab(65.52, -45.87, 20.34)
CIE-LCH	lch(65.52, 50.18, 156.08°)
OKLab	oklab(68.69% -0.1248 0.0514)
OKLCH	oklch(68.69% 0.135 157.6)
XYZ	xyz(21.6837, 34.7084, 23.6421)
Luminance	0.3471 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B379 #B3407A

analogous

#41B340 #40B379 #40B3B2

triadic

#40B379 #7940B3 #B37940

tetradic

#40B379 #4041B3 #B3407A #B3B240

square

#40B379 #4041B3 #B3407A #B3B240

split-complementary

#40B379 #B240B3 #B34041

monochromatic

#20593C #30865B #40B379 #67C998 #94D9B6

Accessibility & contrast

On white

2.64

#40B379 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.94

#40B379 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B379

7.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B379	#FFFFFF	#000000	##000000
##40B379	1.00	2.64	7.94	7.94
#FFFFFF	2.64	1.00	21.00	21.00
#000000	7.94	21.00	1.00	1.00
##000000	7.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B2A675

Deuteranopia (green-blind)

#A29B7D

Tritanopia (blue-blind)

#00B2A4

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #40b379;
/* rgb */ color: rgb(64, 179, 121);
/* oklch */ color: oklch(68.7% 0.135 157.6);

Tailwind

colors: {
  custom: {
    50: '#81caa0',
    500: '#40b379',
    950: '#000000',
  },
}

SCSS

$custom: #40b379;
$custom-light: #81caa0;
$custom-dark: #000000;

JSON

{
  "hex": "#40b379",
  "rgb": {
    "r": 64,
    "g": 179,
    "b": 121
  },
  "hsl": {
    "h": 149.739,
    "s": 47.325,
    "l": 47.647
  },
  "oklch": {
    "l": 0.68687,
    "c": 0.13495,
    "h": 157.6
  },
  "luminance": 0.34711
}

Semantic roles & 50–950 ramp

primary

#40B379

secondary

#C48AA8

accent

#5194D7

background

#F8FCF9

surface

#F0F8F2

border

#CBD1CC

text

#0B130E

muted

#7C827E

Preview Lab

Preview with #40B379

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

Preview Lab → · Contrast checker → · Palette generator →