#B1C733#B1C733

#B1C733 is a light, vivid yellow. Relative luminance 0.504; OKLCH L 78.7% C 0.166 H 117.9°. Best body text is #000000 at 11.09:1 contrast (WCAG AA passes).

Color values

HEX	#B1C733
RGB	rgb(177, 199, 51)
HSL	hsl(69, 59%, 49%)
HSV	hsv(69, 74%, 78%)
CMYK	cmyk(11.1%, 0%, 74.4%, 22%)
CIE-LAB	lab(76.33, -25.96, 66.61)
CIE-LCH	lch(76.33, 71.49, 111.29°)
OKLab	oklab(78.71% -0.0779 0.147)
OKLCH	oklch(78.71% 0.166 117.9)
XYZ	xyz(39.1533, 50.4334, 10.8033)
Luminance	0.5043 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1C733 #4933C7

analogous

#C79333 #B1C733 #67C733

triadic

#B1C733 #33B1C7 #C733B1

tetradic

#B1C733 #33C793 #4933C7 #C73367

square

#B1C733 #33C793 #4933C7 #C73367

split-complementary

#B1C733 #3367C7 #9333C7

monochromatic

#5A661A #869627 #B1C733 #C5D661 #D7E391

Accessibility & contrast

On white

1.89

#B1C733 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.09

#B1C733 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1C733

11.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1C733	#FFFFFF	#000000	##000000
##B1C733	1.00	1.89	11.09	11.09
#FFFFFF	1.89	1.00	21.00	21.00
#000000	11.09	21.00	1.00	1.00
##000000	11.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D4BC11

Deuteranopia (green-blind)

#D2BD40

Tritanopia (blue-blind)

#BCBCAB

Achromatopsia (no color)

#BCBCBC

Design tokens & code

CSS

--color: #b1c733;
/* rgb */ color: rgb(177, 199, 51);
/* oklch */ color: oklch(78.7% 0.166 117.9);

Tailwind

colors: {
  custom: {
    50: '#ccd776',
    500: '#b1c733',
    950: '#000000',
  },
}

SCSS

$custom: #b1c733;
$custom-light: #ccd776;
$custom-dark: #000000;

JSON

{
  "hex": "#b1c733",
  "rgb": {
    "r": 177,
    "g": 199,
    "b": 51
  },
  "hsl": {
    "h": 68.919,
    "s": 59.2,
    "l": 49.02
  },
  "oklch": {
    "l": 0.78711,
    "c": 0.16637,
    "h": 117.9
  },
  "luminance": 0.50433
}

Semantic roles & 50–950 ramp

primary

#B1C733

secondary

#382E70

accent

#45E25D

background

#FEFEFB

surface

#FBFBF1

border

#D4D4CB

text

#141409

muted

#83837D

Preview Lab

Preview with #B1C733

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

Preview Lab → · Contrast checker → · Palette generator →