#B1E54E#B1E54E

#B1E54E is a very light, vivid yellow-green. Relative luminance 0.659; OKLCH L 85.7% C 0.185 H 126.4°. Best body text is #000000 at 14.19:1 contrast (WCAG AA passes).

Color values

HEX	#B1E54E
RGB	rgb(177, 229, 78)
HSL	hsl(81, 74%, 60%)
HSV	hsv(81, 66%, 90%)
CMYK	cmyk(22.7%, 0%, 65.9%, 10.2%)
CIE-LAB	lab(84.96, -38.33, 65.48)
CIE-LCH	lch(84.96, 75.87, 120.34°)
OKLab	oklab(85.73% -0.1097 0.1488)
OKLCH	oklch(85.73% 0.185 126.4)
XYZ	xyz(47.5261, 65.9351, 17.4291)
Luminance	0.6594 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1E54E #824EE5

analogous

#E5CD4E #B1E54E #66E54E

triadic

#B1E54E #4EB1E5 #E54EB1

tetradic

#B1E54E #4EE5CD #824EE5 #E54E66

square

#B1E54E #4EE5CD #824EE5 #E54E66

split-complementary

#B1E54E #4E66E5 #CD4EE5

monochromatic

#72A118 #97D61F #B1E54E #C9ED83 #E0F5B9

Accessibility & contrast

On white

1.48

#B1E54E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.19

#B1E54E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1E54E

14.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1E54E	#FFFFFF	#000000	##000000
##B1E54E	1.00	1.48	14.19	14.19
#FFFFFF	1.48	1.00	21.00	21.00
#000000	14.19	21.00	1.00	1.00
##000000	14.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F1D639

Deuteranopia (green-blind)

#E9D35A

Tritanopia (blue-blind)

#B8DBC6

Achromatopsia (no color)

#D4D4D4

Design tokens & code

CSS

--color: #b1e54e;
/* rgb */ color: rgb(177, 229, 78);
/* oklch */ color: oklch(85.7% 0.185 126.4);

Tailwind

colors: {
  custom: {
    50: '#cced87',
    500: '#b1e54e',
    950: '#000000',
  },
}

SCSS

$custom: #b1e54e;
$custom-light: #cced87;
$custom-dark: #000000;

JSON

{
  "hex": "#b1e54e",
  "rgb": {
    "r": 177,
    "g": 229,
    "b": 78
  },
  "hsl": {
    "h": 80.662,
    "s": 74.384,
    "l": 60.196
  },
  "oklch": {
    "l": 0.85731,
    "c": 0.18481,
    "h": 126.4
  },
  "luminance": 0.65936
}

Semantic roles & 50–950 ramp

primary

#B1E54E

secondary

#5A34A4

accent

#0FD754

background

#FEFFFC

surface

#FBFEF4

border

#D4D6CE

text

#14160C

muted

#83857F

Preview Lab

Preview with #B1E54E

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

Preview Lab → · Contrast checker → · Palette generator →