#B1F05F#B1F05F

#B1F05F is a very light, vivid yellow-green. Relative luminance 0.725; OKLCH L 88.4% C 0.186 H 129.4°. Best body text is #000000 at 15.50:1 contrast (WCAG AA passes).

Color values

HEX	#B1F05F
RGB	rgb(177, 240, 95)
HSL	hsl(86, 83%, 66%)
HSV	hsv(86, 60%, 94%)
CMYK	cmyk(26.3%, 0%, 60.4%, 5.9%)
CIE-LAB	lab(88.20, -41.91, 62.11)
CIE-LCH	lch(88.20, 74.93, 124.01°)
OKLab	oklab(88.4% -0.1181 0.1437)
OKLCH	oklch(88.4% 0.186 129.4)
XYZ	xyz(51.3568, 72.4923, 22.1109)
Luminance	0.7249 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Spring Green (survey)

#A9F971

ΔE00 3.38

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1F05F #9E5FF0

analogous

#F0E65F #B1F05F #68F05F

triadic

#B1F05F #5FB1F0 #F05FB1

tetradic

#B1F05F #5FF0E6 #9E5FF0 #F05F68

square

#B1F05F #5FF0E6 #9E5FF0 #F05F68

split-complementary

#B1F05F #5F68F0 #E65FF0

monochromatic

#76C212 #96EB27 #B1F05F #CCF597 #E8FACF

Accessibility & contrast

On white

1.35

#B1F05F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.50

#B1F05F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1F05F

15.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1F05F	#FFFFFF	#000000	##000000
##B1F05F	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)

#FBE04E

Deuteranopia (green-blind)

#F2DC6A

Tritanopia (blue-blind)

#B5E6D1

Achromatopsia (no color)

#DDDDDD

Design tokens & code

CSS

--color: #b1f05f;
/* rgb */ color: rgb(177, 240, 95);
/* oklch */ color: oklch(88.4% 0.186 129.4);

Tailwind

colors: {
  custom: {
    50: '#ccf592',
    500: '#b1f05f',
    950: '#000000',
  },
}

SCSS

$custom: #b1f05f;
$custom-light: #ccf592;
$custom-dark: #000000;

JSON

{
  "hex": "#b1f05f",
  "rgb": {
    "r": 177,
    "g": 240,
    "b": 95
  },
  "hsl": {
    "h": 86.069,
    "s": 82.857,
    "l": 65.686
  },
  "oklch": {
    "l": 0.88402,
    "c": 0.18601,
    "h": 129.4
  },
  "luminance": 0.72494
}

Semantic roles & 50–950 ramp

primary

#B1F05F

secondary

#7033C0

accent

#06DF65

background

#FEFFFC

surface

#FBFEF4

border

#D4D6CE

text

#14170D

muted

#83857F

Preview Lab

Preview with #B1F05F

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

Preview Lab → · Contrast checker → · Palette generator →