#B1CA39#B1CA39

#B1CA39 is a light, vivid yellow-green. Relative luminance 0.519; OKLCH L 79.4% C 0.166 H 119.0°. Best body text is #000000 at 11.38:1 contrast (WCAG AA passes).

Color values

HEX#B1CA39
RGBrgb(177, 202, 57)
HSLhsl(70, 58%, 51%)
HSVhsv(70, 72%, 79%)
CMYKcmyk(12.4%, 0%, 71.8%, 20.8%)
CIE-LABlab(77.21, -27.11, 65.42)
CIE-LCHlch(77.21, 70.81, 112.51°)
OKLaboklab(79.43% -0.0805 0.1455)
OKLCHoklch(79.43% 0.166 119)
XYZxyz(39.9913, 51.8839, 11.7779)
Luminance0.5188 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#B1CA39 #5239CA
analogous
#CA9A39 #B1CA39 #68CA39
triadic
#B1CA39 #39B1CA #CA39B1
tetradic
#B1CA39 #39CA9A #5239CA #CA3968
square
#B1CA39 #39CA9A #5239CA #CA3968
split-complementary
#B1CA39 #3968CA #9A39CA
monochromatic
#5E6C1D #889C2A #B1CA39 #C4D769 #D7E49A

Accessibility & contrast

On white

1.85
#B1CA39 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

11.38
#B1CA39 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1CA39
11.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##B1CA39#FFFFFF#000000##000000
##B1CA391.001.8511.3811.38
#FFFFFF1.851.0021.0021.00
#00000011.3821.001.001.00
##00000011.3821.001.001.00

Color blindness preview

Protanopia (red-blind)
#D7BF1E
Deuteranopia (green-blind)
#D4BF45
Tritanopia (blue-blind)
#BBBFAE
Achromatopsia (no color)
#BFBFBF

Design tokens & code

CSS
--color: #b1ca39;
/* rgb */ color: rgb(177, 202, 57);
/* oklch */ color: oklch(79.4% 0.166 119.0);
Tailwind
colors: {
  custom: {
    50: '#ccda79',
    500: '#b1ca39',
    950: '#000000',
  },
}
SCSS
$custom: #b1ca39;
$custom-light: #ccda79;
$custom-dark: #000000;
JSON
{
  "hex": "#b1ca39",
  "rgb": {
    "r": 177,
    "g": 202,
    "b": 57
  },
  "hsl": {
    "h": 70.345,
    "s": 57.769,
    "l": 50.784
  },
  "oklch": {
    "l": 0.79428,
    "c": 0.1663,
    "h": 119
  },
  "luminance": 0.51884
}

Semantic roles & 50–950 ramp

primary
#B1CA39
secondary
#3D3275
accent
#47E161
background
#FEFEFB
surface
#FBFBF2
border
#D4D4CC
text
#14140A
muted
#83837D

Preview Lab

Preview with #B1CA39

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

Preview Lab → · Contrast checker → · Palette generator →

#B1CA39 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva