#B1CA3B#B1CA3B

#B1CA3B is a light, vivid yellow-green. Relative luminance 0.519; OKLCH L 79.4% C 0.165 H 119.0°. Best body text is #000000 at 11.38:1 contrast (WCAG AA passes).

Color values

HEX	#B1CA3B
RGB	rgb(177, 202, 59)
HSL	hsl(70, 57%, 51%)
HSV	hsv(70, 71%, 79%)
CMYK	cmyk(12.4%, 0%, 70.8%, 20.8%)
CIE-LAB	lab(77.22, -27.00, 64.72)
CIE-LCH	lch(77.22, 70.12, 112.64°)
OKLab	oklab(79.44% -0.0801 0.1444)
OKLCH	oklch(79.44% 0.165 119)
XYZ	xyz(40.0422, 51.9042, 12.0459)
Luminance	0.5190 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1CA3B #543BCA

analogous

#CA9C3B #B1CA3B #69CA3B

triadic

#B1CA3B #3BB1CA #CA3BB1

tetradic

#B1CA3B #3BCA9C #543BCA #CA3B69

square

#B1CA3B #3BCA9C #543BCA #CA3B69

split-complementary

#B1CA3B #3B69CA #9C3BCA

monochromatic

#5F6D1E #899D2B #B1CA3B #C4D76B #D7E49B

Accessibility & contrast

On white

1.85

#B1CA3B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.38

#B1CA3B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1CA3B

11.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1CA3B	#FFFFFF	#000000	##000000
##B1CA3B	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)

#D7BF22

Deuteranopia (green-blind)

#D4BF47

Tritanopia (blue-blind)

#BBBFAE

Achromatopsia (no color)

#BFBFBF

Design tokens & code

CSS

--color: #b1ca3b;
/* rgb */ color: rgb(177, 202, 59);
/* oklch */ color: oklch(79.4% 0.165 119.0);

Tailwind

colors: {
  custom: {
    50: '#ccda7a',
    500: '#b1ca3b',
    950: '#000000',
  },
}

SCSS

$custom: #b1ca3b;
$custom-light: #ccda7a;
$custom-dark: #000000;

JSON

{
  "hex": "#b1ca3b",
  "rgb": {
    "r": 177,
    "g": 202,
    "b": 59
  },
  "hsl": {
    "h": 70.49,
    "s": 57.43,
    "l": 51.176
  },
  "oklch": {
    "l": 0.79441,
    "c": 0.16507,
    "h": 119
  },
  "luminance": 0.51904
}

Semantic roles & 50–950 ramp

primary

#B1CA3B

secondary

#3E3377

accent

#47E162

background

#FEFEFB

surface

#FBFBF2

border

#D4D4CC

text

#14140A

muted

#83837D

Preview Lab

Preview with #B1CA3B

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

Preview Lab → · Contrast checker → · Palette generator →