#B3EF63#B3EF63

#B3EF63 is a very light, vivid yellow-green. Relative luminance 0.722; OKLCH L 88.3% C 0.181 H 129.0°. Best body text is #000000 at 15.44:1 contrast (WCAG AA passes).

Color values

HEX	#B3EF63
RGB	rgb(179, 239, 99)
HSL	hsl(86, 81%, 66%)
HSV	hsv(86, 59%, 94%)
CMYK	cmyk(25.1%, 0%, 58.6%, 6.3%)
CIE-LAB	lab(88.07, -40.42, 60.30)
CIE-LCH	lch(88.07, 72.59, 123.83°)
OKLab	oklab(88.34% -0.1138 0.1402)
OKLCH	oklch(88.34% 0.181 129)
XYZ	xyz(51.7087, 72.2164, 23.0168)
Luminance	0.7222 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Spring Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3EF63 #9F63EF

analogous

#EFE563 #B3EF63 #6DEF63

triadic

#B3EF63 #63B3EF #EF63B3

tetradic

#B3EF63 #63EFE5 #9F63EF #EF636D

square

#B3EF63 #63EFE5 #9F63EF #EF636D

split-complementary

#B3EF63 #636DEF #E563EF

monochromatic

#78C414 #98E92B #B3EF63 #CEF59B #E9FAD2

Accessibility & contrast

On white

1.36

#B3EF63 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.44

#B3EF63 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B3EF63

15.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3EF63	#FFFFFF	#000000	##000000
##B3EF63	1.00	1.36	15.44	15.44
#FFFFFF	1.36	1.00	21.00	21.00
#000000	15.44	21.00	1.00	1.00
##000000	15.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F9E054

Deuteranopia (green-blind)

#F1DC6D

Tritanopia (blue-blind)

#B8E5D1

Achromatopsia (no color)

#DDDDDD

Design tokens & code

CSS

--color: #b3ef63;
/* rgb */ color: rgb(179, 239, 99);
/* oklch */ color: oklch(88.3% 0.181 129.0);

Tailwind

colors: {
  custom: {
    50: '#cdf494',
    500: '#b3ef63',
    950: '#000000',
  },
}

SCSS

$custom: #b3ef63;
$custom-light: #cdf494;
$custom-dark: #000000;

JSON

{
  "hex": "#b3ef63",
  "rgb": {
    "r": 179,
    "g": 239,
    "b": 99
  },
  "hsl": {
    "h": 85.714,
    "s": 81.395,
    "l": 66.275
  },
  "oklch": {
    "l": 0.88336,
    "c": 0.18058,
    "h": 129
  },
  "luminance": 0.72218
}

Semantic roles & 50–950 ramp

primary

#B3EF63

secondary

#7135C1

accent

#08DE63

background

#FEFFFC

surface

#FBFEF5

border

#D4D6CF

text

#14170D

muted

#83857F

Preview Lab

Preview with #B3EF63

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

Preview Lab → · Contrast checker → · Palette generator →