#5B9F18#5B9F18

#5B9F18 is a light, vivid yellow-green. Relative luminance 0.271; OKLCH L 63.3% C 0.173 H 133.9°. Best body text is #000000 at 6.42:1 contrast (WCAG AA passes).

Color values

HEX	#5B9F18
RGB	rgb(91, 159, 24)
HSL	hsl(90, 74%, 36%)
HSV	hsv(90, 85%, 62%)
CMYK	cmyk(42.8%, 0%, 84.9%, 37.6%)
CIE-LAB	lab(59.05, -42.47, 56.83)
CIE-LCH	lch(59.05, 70.95, 126.77°)
OKLab	oklab(63.29% -0.1196 0.1244)
OKLCH	oklch(63.29% 0.173 133.9)
XYZ	xyz(16.8771, 27.0855, 5.2027)
Luminance	0.2709 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B9F18 #5C189F

analogous

#9E9F18 #5B9F18 #189F18

triadic

#5B9F18 #185B9F #9F185B

tetradic

#5B9F18 #189E9F #5C189F #9F1818

square

#5B9F18 #189E9F #5C189F #9F1818

split-complementary

#5B9F18 #18189F #9F189E

monochromatic

#1E3508 #3D6A10 #5B9F18 #79D420 #98E44D

Accessibility & contrast

On white

3.27

#5B9F18 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.42

#5B9F18 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B9F18

6.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B9F18	#FFFFFF	#000000	##000000
##5B9F18	1.00	3.27	6.42	6.42
#FFFFFF	3.27	1.00	21.00	21.00
#000000	6.42	21.00	1.00	1.00
##000000	6.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A69200

Deuteranopia (green-blind)

#9C8C29

Tritanopia (blue-blind)

#5A9887

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #5b9f18;
/* rgb */ color: rgb(91, 159, 24);
/* oklch */ color: oklch(63.3% 0.173 133.9);

Tailwind

colors: {
  custom: {
    50: '#90bc64',
    500: '#5b9f18',
    950: '#000000',
  },
}

SCSS

$custom: #5b9f18;
$custom-light: #90bc64;
$custom-dark: #000000;

JSON

{
  "hex": "#5b9f18",
  "rgb": {
    "r": 91,
    "g": 159,
    "b": 24
  },
  "hsl": {
    "h": 90.222,
    "s": 73.77,
    "l": 35.882
  },
  "oklch": {
    "l": 0.63287,
    "c": 0.17255,
    "h": 133.9
  },
  "luminance": 0.27086
}

Semantic roles & 50–950 ramp

primary

#5B9F18

secondary

#8A4DC6

accent

#37F095

background

#F9FBF6

surface

#F2F6EB

border

#CCD0C6

text

#0D1206

muted

#7E817A

Preview Lab

Preview with #5B9F18

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

Preview Lab → · Contrast checker → · Palette generator →