#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
RGB	rgb(177, 202, 57)
HSL	hsl(70, 58%, 51%)
HSV	hsv(70, 72%, 79%)
CMYK	cmyk(12.4%, 0%, 71.8%, 20.8%)
CIE-LAB	lab(77.21, -27.11, 65.42)
CIE-LCH	lch(77.21, 70.81, 112.51°)
OKLab	oklab(79.43% -0.0805 0.1455)
OKLCH	oklch(79.43% 0.166 119)
XYZ	xyz(39.9913, 51.8839, 11.7779)
Luminance	0.5188 (WCAG relative)
Temperature	warm
Family	yellow-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
##B1CA39	1.00	1.85	11.38	11.38
#FFFFFF	1.85	1.00	21.00	21.00
#000000	11.38	21.00	1.00	1.00
##000000	11.38	21.00	1.00	1.00

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 →