#B1CF38#B1CF38

#B1CF38 is a light, vivid yellow-green. Relative luminance 0.543; OKLCH L 80.6% C 0.173 H 120.4°. Best body text is #000000 at 11.85:1 contrast (WCAG AA passes).

Color values

HEX	#B1CF38
RGB	rgb(177, 207, 56)
HSL	hsl(72, 61%, 52%)
HSV	hsv(72, 73%, 81%)
CMYK	cmyk(14.5%, 0%, 72.9%, 18.8%)
CIE-LAB	lab(78.61, -29.53, 67.11)
CIE-LCH	lch(78.61, 73.33, 113.75°)
OKLab	oklab(80.55% -0.0873 0.1489)
OKLCH	oklch(80.55% 0.173 120.4)
XYZ	xyz(41.1588, 54.2584, 12.0452)
Luminance	0.5426 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1CF38 #5638CF

analogous

#CFA238 #B1CF38 #65CF38

triadic

#B1CF38 #38B1CF #CF38B1

tetradic

#B1CF38 #38CFA2 #5638CF #CF3865

square

#B1CF38 #38CFA2 #5638CF #CF3865

split-complementary

#B1CF38 #3865CF #A238CF

monochromatic

#60711B #8AA327 #B1CF38 #C4DB69 #D8E79B

Accessibility & contrast

On white

1.77

#B1CF38 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.85

#B1CF38 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1CF38

11.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1CF38	#FFFFFF	#000000	##000000
##B1CF38	1.00	1.77	11.85	11.85
#FFFFFF	1.77	1.00	21.00	21.00
#000000	11.85	21.00	1.00	1.00
##000000	11.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DCC319

Deuteranopia (green-blind)

#D8C345

Tritanopia (blue-blind)

#BBC4B2

Achromatopsia (no color)

#C2C2C2

Design tokens & code

CSS

--color: #b1cf38;
/* rgb */ color: rgb(177, 207, 56);
/* oklch */ color: oklch(80.6% 0.173 120.4);

Tailwind

colors: {
  custom: {
    50: '#ccdd79',
    500: '#b1cf38',
    950: '#000000',
  },
}

SCSS

$custom: #b1cf38;
$custom-light: #ccdd79;
$custom-dark: #000000;

JSON

{
  "hex": "#b1cf38",
  "rgb": {
    "r": 177,
    "g": 207,
    "b": 56
  },
  "hsl": {
    "h": 71.921,
    "s": 61.134,
    "l": 51.569
  },
  "oklch": {
    "l": 0.80554,
    "c": 0.17263,
    "h": 120.4
  },
  "luminance": 0.54258
}

Semantic roles & 50–950 ramp

primary

#B1CF38

secondary

#40317A

accent

#44E463

background

#FEFEFB

surface

#FBFCF2

border

#D4D5CC

text

#14150A

muted

#83847D

Preview Lab

Preview with #B1CF38

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

Preview Lab → · Contrast checker → · Palette generator →