#B1E449#B1E449

#B1E449 is a very light, vivid yellow-green. Relative luminance 0.653; OKLCH L 85.5% C 0.187 H 125.9°. Best body text is #000000 at 14.06:1 contrast (WCAG AA passes).

Color values

HEX	#B1E449
RGB	rgb(177, 228, 73)
HSL	hsl(80, 74%, 59%)
HSV	hsv(80, 68%, 89%)
CMYK	cmyk(22.4%, 0%, 68%, 10.6%)
CIE-LAB	lab(84.65, -38.21, 67.05)
CIE-LCH	lch(84.65, 77.18, 119.68°)
OKLab	oklab(85.46% -0.1098 0.1514)
OKLCH	oklch(85.46% 0.187 125.9)
XYZ	xyz(47.0777, 65.3143, 16.4287)
Luminance	0.6532 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1E449 #7C49E4

analogous

#E4CA49 #B1E449 #64E449

triadic

#B1E449 #49B1E4 #E449B1

tetradic

#B1E449 #49E4CA #7C49E4 #E44964

square

#B1E449 #49E4CA #7C49E4 #E44964

split-complementary

#B1E449 #4964E4 #CA49E4

monochromatic

#709C17 #96D11F #B1E449 #C8EC7E #DFF4B4

Accessibility & contrast

On white

1.49

#B1E449 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.06

#B1E449 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1E449

14.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1E449	#FFFFFF	#000000	##000000
##B1E449	1.00	1.49	14.06	14.06
#FFFFFF	1.49	1.00	21.00	21.00
#000000	14.06	21.00	1.00	1.00
##000000	14.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F0D531

Deuteranopia (green-blind)

#E9D356

Tritanopia (blue-blind)

#B8DAC5

Achromatopsia (no color)

#D3D3D3

Design tokens & code

CSS

--color: #b1e449;
/* rgb */ color: rgb(177, 228, 73);
/* oklch */ color: oklch(85.5% 0.187 125.9);

Tailwind

colors: {
  custom: {
    50: '#ccec84',
    500: '#b1e449',
    950: '#000000',
  },
}

SCSS

$custom: #b1e449;
$custom-light: #ccec84;
$custom-dark: #000000;

JSON

{
  "hex": "#b1e449",
  "rgb": {
    "r": 177,
    "g": 228,
    "b": 73
  },
  "hsl": {
    "h": 79.742,
    "s": 74.163,
    "l": 59.02
  },
  "oklch": {
    "l": 0.85462,
    "c": 0.18698,
    "h": 125.9
  },
  "luminance": 0.65315
}

Semantic roles & 50–950 ramp

primary

#B1E449

secondary

#56329F

accent

#37F174

background

#FEFEFB

surface

#FBFDF2

border

#D4D5CC

text

#14160B

muted

#83847E

Preview Lab

Preview with #B1E449

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

Preview Lab → · Contrast checker → · Palette generator →