#40C151#40C151

#40C151 is a light, vivid green. Relative luminance 0.398; OKLCH L 71.6% C 0.190 H 145.4°. Best body text is #000000 at 8.96:1 contrast (WCAG AA passes).

Color values

HEX	#40C151
RGB	rgb(64, 193, 81)
HSL	hsl(128, 51%, 50%)
HSV	hsv(128, 67%, 76%)
CMYK	cmyk(66.8%, 0%, 58%, 24.3%)
CIE-LAB	lab(69.34, -57.78, 45.54)
CIE-LCH	lch(69.34, 73.57, 141.76°)
OKLab	oklab(71.64% -0.1562 0.1078)
OKLCH	oklch(71.64% 0.19 145.4)
XYZ	xyz(22.6680, 39.8216, 14.2747)
Luminance	0.3982 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40C151 #C140B0

analogous

#6FC140 #40C151 #40C191

triadic

#40C151 #5140C1 #C15140

tetradic

#40C151 #406FC1 #C140B0 #C19140

square

#40C151 #406FC1 #C140B0 #C19140

split-complementary

#40C151 #9140C1 #C1406F

monochromatic

#21662A #30943D #40C151 #6ED07B #9CDFA5

Accessibility & contrast

On white

2.34

#40C151 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.96

#40C151 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40C151

8.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40C151	#FFFFFF	#000000	##000000
##40C151	1.00	2.34	8.96	8.96
#FFFFFF	2.34	1.00	21.00	21.00
#000000	8.96	21.00	1.00	1.00
##000000	8.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C4B046

Deuteranopia (green-blind)

#B4A55A

Tritanopia (blue-blind)

#17BCA8

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #40c151;
/* rgb */ color: rgb(64, 193, 81);
/* oklch */ color: oklch(71.6% 0.190 145.4);

Tailwind

colors: {
  custom: {
    50: '#85d585',
    500: '#40c151',
    950: '#000000',
  },
}

SCSS

$custom: #40c151;
$custom-light: #85d585;
$custom-dark: #000000;

JSON

{
  "hex": "#40c151",
  "rgb": {
    "r": 64,
    "g": 193,
    "b": 81
  },
  "hsl": {
    "h": 127.907,
    "s": 50.988,
    "l": 50.392
  },
  "oklch": {
    "l": 0.71643,
    "c": 0.18978,
    "h": 145.4
  },
  "luminance": 0.39824
}

Semantic roles & 50–950 ramp

primary

#40C151

secondary

#CB92C4

accent

#4DC8DA

background

#F8FDF8

surface

#F0FAEF

border

#CBD3CA

text

#0C140B

muted

#7D837C

Preview Lab

Preview with #40C151

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

Preview Lab → · Contrast checker → · Palette generator →