#B1F489#B1F489

#B1F489 is a very light, vivid yellow-green. Relative luminance 0.759; OKLCH L 89.8% C 0.154 H 134.7°. Best body text is #000000 at 16.17:1 contrast (WCAG AA passes).

Color values

HEX	#B1F489
RGB	rgb(177, 244, 137)
HSL	hsl(98, 83%, 75%)
HSV	hsv(98, 44%, 96%)
CMYK	cmyk(27.5%, 0%, 43.9%, 4.3%)
CIE-LAB	lab(89.79, -39.35, 44.87)
CIE-LCH	lch(89.79, 59.68, 131.25°)
OKLab	oklab(89.84% -0.1081 0.1092)
OKLCH	oklch(89.84% 0.154 134.7)
XYZ	xyz(54.9963, 75.8529, 35.4055)
Luminance	0.7585 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Light Yellowish Green

Spring Green (survey)

#A9F971

ΔE00 3.63

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1F489 #CC89F4

analogous

#E7F489 #B1F489 #89F497

triadic

#B1F489 #89B1F4 #F489B1

tetradic

#B1F489 #89E7F4 #CC89F4 #F49789

square

#B1F489 #89E7F4 #CC89F4 #F49789

split-complementary

#B1F489 #9789F4 #F489E7

monochromatic

#67EA19 #8CEF51 #B1F489 #D6F9C1 #ECFCE3

Accessibility & contrast

On white

1.30

#B1F489 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.17

#B1F489 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1F489

16.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1F489	#FFFFFF	#000000	##000000
##B1F489	1.00	1.30	16.17	16.17
#FFFFFF	1.30	1.00	21.00	21.00
#000000	16.17	21.00	1.00	1.00
##000000	16.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FBE581

Deuteranopia (green-blind)

#F1E08F

Tritanopia (blue-blind)

#B1EDDA

Achromatopsia (no color)

#E2E2E2

Design tokens & code

CSS

--color: #b1f489;
/* rgb */ color: rgb(177, 244, 137);
/* oklch */ color: oklch(89.8% 0.154 134.7);

Tailwind

colors: {
  custom: {
    50: '#caf8ad',
    500: '#b1f489',
    950: '#000000',
  },
}

SCSS

$custom: #b1f489;
$custom-light: #caf8ad;
$custom-dark: #000000;

JSON

{
  "hex": "#b1f489",
  "rgb": {
    "r": 177,
    "g": 244,
    "b": 137
  },
  "hsl": {
    "h": 97.57,
    "s": 82.946,
    "l": 74.706
  },
  "oklch": {
    "l": 0.89836,
    "c": 0.15366,
    "h": 134.7
  },
  "luminance": 0.75855
}

Semantic roles & 50–950 ramp

primary

#B1F489

secondary

#A150D1

accent

#06DF8E

background

#FEFFFD

surface

#FBFFF7

border

#D4D7D0

text

#131710

muted

#838581

Preview Lab

Preview with #B1F489

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

Preview Lab → · Contrast checker → · Palette generator →