#B1F35D#B1F35D

#B1F35D is a very light, vivid yellow-green. Relative luminance 0.742; OKLCH L 89.1% C 0.191 H 129.7°. Best body text is #000000 at 15.85:1 contrast (WCAG AA passes).

Color values

HEX	#B1F35D
RGB	rgb(177, 243, 93)
HSL	hsl(86, 86%, 66%)
HSV	hsv(86, 62%, 95%)
CMYK	cmyk(27.2%, 0%, 61.7%, 4.7%)
CIE-LAB	lab(89.03, -43.38, 63.85)
CIE-LCH	lch(89.03, 77.19, 124.19°)
OKLab	oklab(89.07% -0.1223 0.1472)
OKLCH	oklch(89.07% 0.191 129.7)
XYZ	xyz(52.1575, 74.2373, 21.9350)
Luminance	0.7424 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Spring Green (survey)

#A9F971

ΔE00 3.20

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1F35D #9F5DF3

analogous

#F3EA5D #B1F35D #66F35D

triadic

#B1F35D #5DB1F3 #F35DB1

tetradic

#B1F35D #5DF3EA #9F5DF3 #F35D66

square

#B1F35D #5DF3EA #9F5DF3 #F35D66

split-complementary

#B1F35D #5D66F3 #EA5DF3

monochromatic

#76C70F #96EF24 #B1F35D #CCF796 #E8FBCF

Accessibility & contrast

On white

1.33

#B1F35D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.85

#B1F35D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1F35D

15.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1F35D	#FFFFFF	#000000	##000000
##B1F35D	1.00	1.33	15.85	15.85
#FFFFFF	1.33	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)

#FEE34B

Deuteranopia (green-blind)

#F4DE68

Tritanopia (blue-blind)

#B5E9D4

Achromatopsia (no color)

#E0E0E0

Design tokens & code

CSS

--color: #b1f35d;
/* rgb */ color: rgb(177, 243, 93);
/* oklch */ color: oklch(89.1% 0.191 129.7);

Tailwind

colors: {
  custom: {
    50: '#ccf791',
    500: '#b1f35d',
    950: '#000000',
  },
}

SCSS

$custom: #b1f35d;
$custom-light: #ccf791;
$custom-dark: #000000;

JSON

{
  "hex": "#b1f35d",
  "rgb": {
    "r": 177,
    "g": 243,
    "b": 93
  },
  "hsl": {
    "h": 86.4,
    "s": 86.207,
    "l": 65.882
  },
  "oklch": {
    "l": 0.89069,
    "c": 0.19137,
    "h": 129.7
  },
  "luminance": 0.74239
}

Semantic roles & 50–950 ramp

primary

#B1F35D

secondary

#7130C4

accent

#03E365

background

#FEFFFC

surface

#FBFFF4

border

#D4D7CE

text

#14170D

muted

#83857F

Preview Lab

Preview with #B1F35D

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

Preview Lab → · Contrast checker → · Palette generator →