#B1D559#B1D559

#B1D559 is a very light, vivid yellow-green. Relative luminance 0.577; OKLCH L 82.2% C 0.156 H 123.4°. Best body text is #000000 at 12.53:1 contrast (WCAG AA passes).

Color values

HEX	#B1D559
RGB	rgb(177, 213, 89)
HSL	hsl(77, 60%, 59%)
HSV	hsv(77, 58%, 84%)
CMYK	cmyk(16.9%, 0%, 58.2%, 16.5%)
CIE-LAB	lab(80.55, -30.16, 56.14)
CIE-LCH	lch(80.55, 63.73, 118.25°)
OKLab	oklab(82.19% -0.0861 0.1303)
OKLCH	oklch(82.19% 0.156 123.4)
XYZ	xyz(43.7291, 57.6567, 18.2743)
Luminance	0.5766 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1D559 #7D59D5

analogous

#D5BB59 #B1D559 #73D559

triadic

#B1D559 #59B1D5 #D559B1

tetradic

#B1D559 #59D5BB #7D59D5 #D55973

square

#B1D559 #59D5BB #7D59D5 #D55973

split-complementary

#B1D559 #5973D5 #BB59D5

monochromatic

#708F24 #97C031 #B1D559 #C8E18A #DFEEBB

Accessibility & contrast

On white

1.68

#B1D559 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.53

#B1D559 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1D559

12.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1D559	#FFFFFF	#000000	##000000
##B1D559	1.00	1.68	12.53	12.53
#FFFFFF	1.68	1.00	21.00	21.00
#000000	12.53	21.00	1.00	1.00
##000000	12.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E0C94C

Deuteranopia (green-blind)

#DBC861

Tritanopia (blue-blind)

#B9CBBA

Achromatopsia (no color)

#C8C8C8

Design tokens & code

CSS

--color: #b1d559;
/* rgb */ color: rgb(177, 213, 89);
/* oklch */ color: oklch(82.2% 0.156 123.4);

Tailwind

colors: {
  custom: {
    50: '#cbe28c',
    500: '#b1d559',
    950: '#000000',
  },
}

SCSS

$custom: #b1d559;
$custom-light: #cbe28c;
$custom-dark: #000000;

JSON

{
  "hex": "#b1d559",
  "rgb": {
    "r": 177,
    "g": 213,
    "b": 89
  },
  "hsl": {
    "h": 77.419,
    "s": 59.615,
    "l": 59.216
  },
  "oklch": {
    "l": 0.82193,
    "c": 0.15619,
    "h": 123.4
  },
  "luminance": 0.57657
}

Semantic roles & 50–950 ramp

primary

#B1D559

secondary

#573D95

accent

#45E373

background

#FEFEFC

surface

#FBFCF4

border

#D4D5CE

text

#14150C

muted

#83847F

Preview Lab

Preview with #B1D559

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

Preview Lab → · Contrast checker → · Palette generator →