#B1CF3B#B1CF3B

#B1CF3B is a light, vivid yellow-green. Relative luminance 0.543; OKLCH L 80.6% C 0.171 H 120.5°. Best body text is #000000 at 11.86:1 contrast (WCAG AA passes).

Color values

HEX	#B1CF3B
RGB	rgb(177, 207, 59)
HSL	hsl(72, 61%, 52%)
HSV	hsv(72, 71%, 81%)
CMYK	cmyk(14.5%, 0%, 71.5%, 18.8%)
CIE-LAB	lab(78.63, -29.38, 66.10)
CIE-LCH	lch(78.63, 72.33, 113.96°)
OKLab	oklab(80.57% -0.0866 0.1473)
OKLCH	oklch(80.57% 0.171 120.5)
XYZ	xyz(41.2344, 54.2886, 12.4433)
Luminance	0.5429 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1CF3B #593BCF

analogous

#CFA33B #B1CF3B #67CF3B

triadic

#B1CF3B #3BB1CF #CF3BB1

tetradic

#B1CF3B #3BCFA3 #593BCF #CF3B67

square

#B1CF3B #3BCFA3 #593BCF #CF3B67

split-complementary

#B1CF3B #3B67CF #A33BCF

monochromatic

#62731C #8BA528 #B1CF3B #C5DB6C #D8E79D

Accessibility & contrast

On white

1.77

#B1CF3B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.86

#B1CF3B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1CF3B

11.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1CF3B	#FFFFFF	#000000	##000000
##B1CF3B	1.00	1.77	11.86	11.86
#FFFFFF	1.77	1.00	21.00	21.00
#000000	11.86	21.00	1.00	1.00
##000000	11.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DCC320

Deuteranopia (green-blind)

#D8C348

Tritanopia (blue-blind)

#BBC4B2

Achromatopsia (no color)

#C3C3C3

Design tokens & code

CSS

--color: #b1cf3b;
/* rgb */ color: rgb(177, 207, 59);
/* oklch */ color: oklch(80.6% 0.171 120.5);

Tailwind

colors: {
  custom: {
    50: '#ccdd7b',
    500: '#b1cf3b',
    950: '#000000',
  },
}

SCSS

$custom: #b1cf3b;
$custom-light: #ccdd7b;
$custom-dark: #000000;

JSON

{
  "hex": "#b1cf3b",
  "rgb": {
    "r": 177,
    "g": 207,
    "b": 59
  },
  "hsl": {
    "h": 72.162,
    "s": 60.656,
    "l": 52.157
  },
  "oklch": {
    "l": 0.80574,
    "c": 0.17085,
    "h": 120.5
  },
  "luminance": 0.54289
}

Semantic roles & 50–950 ramp

primary

#B1CF3B

secondary

#41327C

accent

#44E464

background

#FEFEFB

surface

#FBFCF2

border

#D4D5CC

text

#14150A

muted

#83847D

Preview Lab

Preview with #B1CF3B

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

Preview Lab → · Contrast checker → · Palette generator →