#78B31B#78B31B

#78B31B is a light, vivid yellow-green. Relative luminance 0.363; OKLCH L 70.0% C 0.180 H 130.0°. Best body text is #000000 at 8.26:1 contrast (WCAG AA passes).

Color values

HEX	#78B31B
RGB	rgb(120, 179, 27)
HSL	hsl(83, 74%, 40%)
HSV	hsv(83, 85%, 70%)
CMYK	cmyk(33%, 0%, 84.9%, 29.8%)
CIE-LAB	lab(66.76, -40.40, 63.42)
CIE-LCH	lch(66.76, 75.20, 122.50°)
OKLab	oklab(69.99% -0.1157 0.1381)
OKLCH	oklch(69.99% 0.18 130)
XYZ	xyz(24.0636, 36.3116, 6.7777)
Luminance	0.3631 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#78B31B #561BB3

analogous

#B3A21B #78B31B #2CB31B

triadic

#78B31B #1B78B3 #B31B78

tetradic

#78B31B #1BB3A2 #561BB3 #B31B2C

square

#78B31B #1BB3A2 #561BB3 #B31B2C

split-complementary

#78B31B #1B2CB3 #A21BB3

monochromatic

#31490B #547E13 #78B31B #9ADF2C #B3E761

Accessibility & contrast

On white

2.54

#78B31B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.26

#78B31B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #78B31B

8.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##78B31B	#FFFFFF	#000000	##000000
##78B31B	1.00	2.54	8.26	8.26
#FFFFFF	2.54	1.00	21.00	21.00
#000000	8.26	21.00	1.00	1.00
##000000	8.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BCA500

Deuteranopia (green-blind)

#B4A12E

Tritanopia (blue-blind)

#7BAB98

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #78b31b;
/* rgb */ color: rgb(120, 179, 27);
/* oklch */ color: oklch(70.0% 0.180 130.0);

Tailwind

colors: {
  custom: {
    50: '#a4ca68',
    500: '#78b31b',
    950: '#000000',
  },
}

SCSS

$custom: #78b31b;
$custom-light: #a4ca68;
$custom-dark: #000000;

JSON

{
  "hex": "#78b31b",
  "rgb": {
    "r": 120,
    "g": 179,
    "b": 27
  },
  "hsl": {
    "h": 83.289,
    "s": 73.786,
    "l": 40.392
  },
  "oklch": {
    "l": 0.69987,
    "c": 0.18014,
    "h": 130
  },
  "luminance": 0.36312
}

Semantic roles & 50–950 ramp

primary

#78B31B

secondary

#895ECC

accent

#37F07F

background

#FAFCF6

surface

#F4F8EB

border

#CED1C6

text

#101307

muted

#7F827A

Preview Lab

Preview with #78B31B

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

Preview Lab → · Contrast checker → · Palette generator →