#B1F35E#B1F35E

#B1F35E is a very light, vivid yellow-green. Relative luminance 0.743; OKLCH L 89.1% C 0.191 H 129.8°. Best body text is #000000 at 15.85:1 contrast (WCAG AA passes).

Color values

HEX	#B1F35E
RGB	rgb(177, 243, 94)
HSL	hsl(87, 86%, 66%)
HSV	hsv(87, 61%, 95%)
CMYK	cmyk(27.2%, 0%, 61.3%, 4.7%)
CIE-LAB	lab(89.04, -43.30, 63.45)
CIE-LCH	lch(89.04, 76.82, 124.31°)
OKLab	oklab(89.08% -0.122 0.1464)
OKLCH	oklch(89.08% 0.191 129.8)
XYZ	xyz(52.2021, 74.2551, 22.1698)
Luminance	0.7426 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Spring Green (survey)

#A9F971

ΔE00 3.12

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1F35E #A05EF3

analogous

#F3EA5E #B1F35E #66F35E

triadic

#B1F35E #5EB1F3 #F35EB1

tetradic

#B1F35E #5EF3EA #A05EF3 #F35E66

square

#B1F35E #5EF3EA #A05EF3 #F35E66

split-complementary

#B1F35E #5E66F3 #EA5EF3

monochromatic

#76C80F #95EF25 #B1F35E #CDF797 #E8FBD0

Accessibility & contrast

On white

1.32

#B1F35E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.85

#B1F35E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1F35E

15.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1F35E	#FFFFFF	#000000	##000000
##B1F35E	1.00	1.32	15.85	15.85
#FFFFFF	1.32	1.00	21.00	21.00
#000000	15.85	21.00	1.00	1.00
##000000	15.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FEE34C

Deuteranopia (green-blind)

#F4DE69

Tritanopia (blue-blind)

#B5E9D4

Achromatopsia (no color)

#E0E0E0

Design tokens & code

CSS

--color: #b1f35e;
/* rgb */ color: rgb(177, 243, 94);
/* oklch */ color: oklch(89.1% 0.191 129.8);

Tailwind

colors: {
  custom: {
    50: '#ccf791',
    500: '#b1f35e',
    950: '#000000',
  },
}

SCSS

$custom: #b1f35e;
$custom-light: #ccf791;
$custom-dark: #000000;

JSON

{
  "hex": "#b1f35e",
  "rgb": {
    "r": 177,
    "g": 243,
    "b": 94
  },
  "hsl": {
    "h": 86.577,
    "s": 86.127,
    "l": 66.078
  },
  "oklch": {
    "l": 0.89079,
    "c": 0.19061,
    "h": 129.8
  },
  "luminance": 0.74256
}

Semantic roles & 50–950 ramp

primary

#B1F35E

secondary

#7231C5

accent

#03E366

background

#FEFFFC

surface

#FBFFF4

border

#D4D7CE

text

#14170D

muted

#83857F

Preview Lab

Preview with #B1F35E

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

Preview Lab → · Contrast checker → · Palette generator →