#78C539#78C539

#78C539 is a light, vivid yellow-green. Relative luminance 0.442; OKLCH L 74.6% C 0.187 H 134.1°. Best body text is #000000 at 9.84:1 contrast (WCAG AA passes).

Color values

HEX	#78C539
RGB	rgb(120, 197, 57)
HSL	hsl(93, 55%, 50%)
HSV	hsv(93, 71%, 77%)
CMYK	cmyk(39.1%, 0%, 71.1%, 22.7%)
CIE-LAB	lab(72.38, -46.46, 59.49)
CIE-LCH	lch(72.38, 75.48, 127.99°)
OKLab	oklab(74.63% -0.1301 0.1343)
OKLCH	oklch(74.63% 0.187 134.1)
XYZ	xyz(28.4500, 44.2196, 10.9063)
Luminance	0.4422 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#78C539 #8639C5

analogous

#BEC539 #78C539 #39C540

triadic

#78C539 #3978C5 #C53978

tetradic

#78C539 #39BEC5 #8639C5 #C54039

square

#78C539 #39BEC5 #8639C5 #C54039

split-complementary

#78C539 #4039C5 #C539BE

monochromatic

#3E661E #5B962B #78C539 #98D368 #B9E197

Accessibility & contrast

On white

2.13

#78C539 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.84

#78C539 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #78C539

9.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##78C539	#FFFFFF	#000000	##000000
##78C539	1.00	2.13	9.84	9.84
#FFFFFF	2.13	1.00	21.00	21.00
#000000	9.84	21.00	1.00	1.00
##000000	9.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CDB521

Deuteranopia (green-blind)

#C2AF46

Tritanopia (blue-blind)

#77BDA9

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #78c539;
/* rgb */ color: rgb(120, 197, 57);
/* oklch */ color: oklch(74.6% 0.187 134.1);

Tailwind

colors: {
  custom: {
    50: '#a5d778',
    500: '#78c539',
    950: '#000000',
  },
}

SCSS

$custom: #78c539;
$custom-light: #a5d778;
$custom-dark: #000000;

JSON

{
  "hex": "#78c539",
  "rgb": {
    "r": 120,
    "g": 197,
    "b": 57
  },
  "hsl": {
    "h": 93,
    "s": 55.118,
    "l": 49.804
  },
  "oklch": {
    "l": 0.74625,
    "c": 0.18696,
    "h": 134.1
  },
  "luminance": 0.44221
}

Semantic roles & 50–950 ramp

primary

#78C539

secondary

#B08DCD

accent

#49DE9B

background

#FAFDF7

surface

#F4FAEE

border

#CED3C9

text

#101409

muted

#7F837B

Preview Lab

Preview with #78C539

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

Preview Lab → · Contrast checker → · Palette generator →