#40D957#40D957

#40D957 is a light, highly saturated green. Relative luminance 0.514; OKLCH L 77.9% C 0.214 H 145.4°. Best body text is #000000 at 11.28:1 contrast (WCAG AA passes).

Color values

HEX	#40D957
RGB	rgb(64, 217, 87)
HSL	hsl(129, 67%, 55%)
HSV	hsv(129, 71%, 85%)
CMYK	cmyk(70.5%, 0%, 59.9%, 14.9%)
CIE-LAB	lab(76.92, -65.29, 51.62)
CIE-LCH	lch(76.92, 83.23, 141.67°)
OKLab	oklab(77.94% -0.1763 0.1214)
OKLCH	oklch(77.94% 0.214 145.4)
XYZ	xyz(28.6455, 51.4006, 17.4266)
Luminance	0.5140 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40D957 #D940C2

analogous

#75D940 #40D957 #40D9A4

triadic

#40D957 #5740D9 #D95740

tetradic

#40D957 #4075D9 #D940C2 #D9A440

square

#40D957 #4075D9 #D940C2 #D9A440

split-complementary

#40D957 #A440D9 #D94075

monochromatic

#1A842A #24B73B #40D957 #73E384 #A6EDB1

Accessibility & contrast

On white

1.86

#40D957 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.28

#40D957 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40D957

11.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40D957	#FFFFFF	#000000	##000000
##40D957	1.00	1.86	11.28	11.28
#FFFFFF	1.86	1.00	21.00	21.00
#000000	11.28	21.00	1.00	1.00
##000000	11.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DCC549

Deuteranopia (green-blind)

#CBB962

Tritanopia (blue-blind)

#00D4BD

Achromatopsia (no color)

#BEBEBE

Design tokens & code

CSS

--color: #40d957;
/* rgb */ color: rgb(64, 217, 87);
/* oklch */ color: oklch(77.9% 0.214 145.4);

Tailwind

colors: {
  custom: {
    50: '#89e68a',
    500: '#40d957',
    950: '#000000',
  },
}

SCSS

$custom: #40d957;
$custom-light: #89e68a;
$custom-dark: #000000;

JSON

{
  "hex": "#40d957",
  "rgb": {
    "r": 64,
    "g": 217,
    "b": 87
  },
  "hsl": {
    "h": 129.02,
    "s": 66.812,
    "l": 55.098
  },
  "oklch": {
    "l": 0.77935,
    "c": 0.21406,
    "h": 145.4
  },
  "luminance": 0.51404
}

Semantic roles & 50–950 ramp

primary

#40D957

secondary

#8B327E

accent

#3ED0EA

background

#FCFEFC

surface

#F4FDF4

border

#CED5CE

text

#0D160C

muted

#7F847F

Preview Lab

Preview with #40D957

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

Preview Lab → · Contrast checker → · Palette generator →