#B5F03F#B5F03F

#B5F03F is a very light, highly saturated yellow-green. Relative luminance 0.725; OKLCH L 88.4% C 0.205 H 126.7°. Best body text is #000000 at 15.50:1 contrast (WCAG AA passes).

Color values

HEX	#B5F03F
RGB	rgb(181, 240, 63)
HSL	hsl(80, 86%, 59%)
HSV	hsv(80, 74%, 94%)
CMYK	cmyk(24.6%, 0%, 73.8%, 5.9%)
CIE-LAB	lab(88.21, -42.58, 74.13)
CIE-LCH	lch(88.21, 85.48, 119.87°)
OKLab	oklab(88.39% -0.1227 0.1647)
OKLCH	oklch(88.39% 0.205 126.7)
XYZ	xyz(51.1136, 72.5019, 16.0030)
Luminance	0.7250 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B5F03F #7A3FF0

analogous

#F0D33F #B5F03F #5DF03F

triadic

#B5F03F #3FB5F0 #F03FB5

tetradic

#B5F03F #3FF0D3 #7A3FF0 #F03F5D

square

#B5F03F #3FF0D3 #7A3FF0 #F03F5D

split-complementary

#B5F03F #3F5DF0 #D33FF0

monochromatic

#74A80D #9BE012 #B5F03F #CBF478 #E1F9B1

Accessibility & contrast

On white

1.35

#B5F03F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.50

#B5F03F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B5F03F

15.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B5F03F	#FFFFFF	#000000	##000000
##B5F03F	1.00	1.35	15.50	15.50
#FFFFFF	1.35	1.00	21.00	21.00
#000000	15.50	21.00	1.00	1.00
##000000	15.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FCE017

Deuteranopia (green-blind)

#F4DC50

Tritanopia (blue-blind)

#BCE5CE

Achromatopsia (no color)

#DDDDDD

Design tokens & code

CSS

--color: #b5f03f;
/* rgb */ color: rgb(181, 240, 63);
/* oklch */ color: oklch(88.4% 0.205 126.7);

Tailwind

colors: {
  custom: {
    50: '#d0f580',
    500: '#b5f03f',
    950: '#000000',
  },
}

SCSS

$custom: #b5f03f;
$custom-light: #d0f580;
$custom-dark: #000000;

JSON

{
  "hex": "#b5f03f",
  "rgb": {
    "r": 181,
    "g": 240,
    "b": 63
  },
  "hsl": {
    "h": 80,
    "s": 85.507,
    "l": 59.412
  },
  "oklch": {
    "l": 0.88393,
    "c": 0.20536,
    "h": 126.7
  },
  "luminance": 0.72503
}

Semantic roles & 50–950 ramp

primary

#B5F03F

secondary

#552AA9

accent

#2CFC71

background

#FEFFFB

surface

#FBFEF2

border

#D4D6CC

text

#14170B

muted

#83857E

Preview Lab

Preview with #B5F03F

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

Preview Lab → · Contrast checker → · Palette generator →