#B1F989#B1F989

#B1F989 is a very light, vivid yellow-green. Relative luminance 0.789; OKLCH L 91.0% C 0.161 H 135.3°. Best body text is #000000 at 16.78:1 contrast (WCAG AA passes).

Color values

HEX	#B1F989
RGB	rgb(177, 249, 137)
HSL	hsl(99, 90%, 76%)
HSV	hsv(99, 45%, 98%)
CMYK	cmyk(28.9%, 0%, 45%, 2.4%)
CIE-LAB	lab(91.19, -41.56, 46.62)
CIE-LCH	lch(91.19, 62.46, 131.72°)
OKLab	oklab(90.97% -0.1142 0.1132)
OKLCH	oklch(90.97% 0.161 135.3)
XYZ	xyz(56.5212, 78.9027, 35.9138)
Luminance	0.7891 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Light Yellowish Green

#C2FF89

ΔE00 2.65

Spring Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1F989 #D189F9

analogous

#E9F989 #B1F989 #89F999

triadic

#B1F989 #89B1F9 #F989B1

tetradic

#B1F989 #89E9F9 #D189F9 #F99989

square

#B1F989 #89E9F9 #D189F9 #F99989

split-complementary

#B1F989 #9989F9 #F989E9

monochromatic

#64F315 #8BF64F #B1F989 #D7FCC3 #ECFEE2

Accessibility & contrast

On white

1.25

#B1F989 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.78

#B1F989 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1F989

16.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1F989	#FFFFFF	#000000	##000000
##B1F989	1.00	1.25	16.78	16.78
#FFFFFF	1.25	1.00	21.00	21.00
#000000	16.78	21.00	1.00	1.00
##000000	16.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEA80

Deuteranopia (green-blind)

#F6E490

Tritanopia (blue-blind)

#B0F2DE

Achromatopsia (no color)

#E6E6E6

Design tokens & code

CSS

--color: #b1f989;
/* rgb */ color: rgb(177, 249, 137);
/* oklch */ color: oklch(91.0% 0.161 135.3);

Tailwind

colors: {
  custom: {
    50: '#cbfbad',
    500: '#b1f989',
    950: '#000000',
  },
}

SCSS

$custom: #b1f989;
$custom-light: #cbfbad;
$custom-dark: #000000;

JSON

{
  "hex": "#b1f989",
  "rgb": {
    "r": 177,
    "g": 249,
    "b": 137
  },
  "hsl": {
    "h": 98.571,
    "s": 90.323,
    "l": 75.686
  },
  "oklch": {
    "l": 0.90969,
    "c": 0.1608,
    "h": 135.3
  },
  "luminance": 0.78905
}

Semantic roles & 50–950 ramp

primary

#B1F989

secondary

#A74FD7

accent

#00E694

background

#FEFFFD

surface

#FBFFF7

border

#D4D7D0

text

#131710

muted

#838581

Preview Lab

Preview with #B1F989

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

Preview Lab → · Contrast checker → · Palette generator →