#B5F366#B5F366

#B5F366 is a very light, vivid yellow-green. Relative luminance 0.749; OKLCH L 89.4% C 0.182 H 129.4°. Best body text is #000000 at 15.98:1 contrast (WCAG AA passes).

Color values

HEX	#B5F366
RGB	rgb(181, 243, 102)
HSL	hsl(86, 85%, 68%)
HSV	hsv(86, 58%, 95%)
CMYK	cmyk(25.5%, 0%, 58%, 4.7%)
CIE-LAB	lab(89.34, -41.20, 60.47)
CIE-LCH	lch(89.34, 73.17, 124.27°)
OKLab	oklab(89.4% -0.1158 0.1409)
OKLCH	oklch(89.4% 0.182 129.4)
XYZ	xyz(53.5046, 74.8830, 24.2027)
Luminance	0.7488 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Spring Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B5F366 #A466F3

analogous

#F3EB66 #B5F366 #6EF366

triadic

#B5F366 #66B5F3 #F366B5

tetradic

#B5F366 #66F3EB #A466F3 #F3666E

square

#B5F366 #66F3EB #A466F3 #F3666E

split-complementary

#B5F366 #666EF3 #EB66F3

monochromatic

#7BCE10 #9AEF2D #B5F366 #D0F79F #ECFCD7

Accessibility & contrast

On white

1.31

#B5F366 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.98

#B5F366 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B5F366

15.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B5F366	#FFFFFF	#000000	##000000
##B5F366	1.00	1.31	15.98	15.98
#FFFFFF	1.31	1.00	21.00	21.00
#000000	15.98	21.00	1.00	1.00
##000000	15.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FDE357

Deuteranopia (green-blind)

#F5DF70

Tritanopia (blue-blind)

#B9E9D5

Achromatopsia (no color)

#E0E0E0

Design tokens & code

CSS

--color: #b5f366;
/* rgb */ color: rgb(181, 243, 102);
/* oklch */ color: oklch(89.4% 0.182 129.4);

Tailwind

colors: {
  custom: {
    50: '#cef796',
    500: '#b5f366',
    950: '#000000',
  },
}

SCSS

$custom: #b5f366;
$custom-light: #cef796;
$custom-dark: #000000;

JSON

{
  "hex": "#b5f366",
  "rgb": {
    "r": 181,
    "g": 243,
    "b": 102
  },
  "hsl": {
    "h": 86.383,
    "s": 85.455,
    "l": 67.647
  },
  "oklch": {
    "l": 0.894,
    "c": 0.18237,
    "h": 129.4
  },
  "luminance": 0.74884
}

Semantic roles & 50–950 ramp

primary

#B5F366

secondary

#7533CA

accent

#04E265

background

#FEFFFC

surface

#FBFEF5

border

#D4D6CF

text

#14170E

muted

#83857F

Preview Lab

Preview with #B5F366

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

Preview Lab → · Contrast checker → · Palette generator →