#5B9E18#5B9E18

#5B9E18 is a light, vivid yellow-green. Relative luminance 0.267; OKLCH L 63.0% C 0.171 H 133.8°. Best body text is #000000 at 6.35:1 contrast (WCAG AA passes).

Color values

HEX	#5B9E18
RGB	rgb(91, 158, 24)
HSL	hsl(90, 74%, 36%)
HSV	hsv(90, 85%, 62%)
CMYK	cmyk(42.4%, 0%, 84.8%, 38%)
CIE-LAB	lab(58.74, -42.06, 56.55)
CIE-LCH	lch(58.74, 70.47, 126.64°)
OKLab	oklab(63.03% -0.1185 0.1238)
OKLCH	oklch(63.03% 0.171 133.8)
XYZ	xyz(16.7058, 26.7429, 5.1456)
Luminance	0.2674 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B9E18 #5B189E

analogous

#9E9E18 #5B9E18 #189E18

triadic

#5B9E18 #185B9E #9E185B

tetradic

#5B9E18 #189E9E #5B189E #9E1818

square

#5B9E18 #189E9E #5B189E #9E1818

split-complementary

#5B9E18 #18189E #9E189E

monochromatic

#1E3408 #3C6910 #5B9E18 #7AD320 #98E44D

Accessibility & contrast

On white

3.31

#5B9E18 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.35

#5B9E18 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B9E18

6.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B9E18	#FFFFFF	#000000	##000000
##5B9E18	1.00	3.31	6.35	6.35
#FFFFFF	3.31	1.00	21.00	21.00
#000000	6.35	21.00	1.00	1.00
##000000	6.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A59100

Deuteranopia (green-blind)

#9C8B29

Tritanopia (blue-blind)

#5B9786

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #5b9e18;
/* rgb */ color: rgb(91, 158, 24);
/* oklch */ color: oklch(63.0% 0.171 133.8);

Tailwind

colors: {
  custom: {
    50: '#90bb63',
    500: '#5b9e18',
    950: '#000000',
  },
}

SCSS

$custom: #5b9e18;
$custom-light: #90bb63;
$custom-dark: #000000;

JSON

{
  "hex": "#5b9e18",
  "rgb": {
    "r": 91,
    "g": 158,
    "b": 24
  },
  "hsl": {
    "h": 90,
    "s": 73.626,
    "l": 35.686
  },
  "oklch": {
    "l": 0.63026,
    "c": 0.17135,
    "h": 133.8
  },
  "luminance": 0.26744
}

Semantic roles & 50–950 ramp

primary

#5B9E18

secondary

#894CC6

accent

#38F094

background

#F9FBF6

surface

#F2F6EB

border

#CCD0C6

text

#0D1206

muted

#7E817A

Preview Lab

Preview with #5B9E18

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

Preview Lab → · Contrast checker → · Palette generator →