#B1BF40#B1BF40

#B1BF40 is a light, vivid yellow. Relative luminance 0.470; OKLCH L 77.0% C 0.149 H 115.4°. Best body text is #000000 at 10.40:1 contrast (WCAG AA passes).

Color values

HEX	#B1BF40
RGB	rgb(177, 191, 64)
HSL	hsl(67, 50%, 50%)
HSV	hsv(67, 66%, 75%)
CMYK	cmyk(7.3%, 0%, 66.5%, 25.1%)
CIE-LAB	lab(74.18, -21.36, 59.77)
CIE-LCH	lch(74.18, 63.47, 109.66°)
OKLab	oklab(77% -0.0639 0.1347)
OKLCH	oklch(77% 0.149 115.4)
XYZ	xyz(37.6886, 46.9795, 11.9320)
Luminance	0.4698 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1BF40 #4E40BF

analogous

#BF8D40 #B1BF40 #72BF40

triadic

#B1BF40 #40B1BF #BF40B1

tetradic

#B1BF40 #40BF8D #4E40BF #BF4072

square

#B1BF40 #40BF8D #4E40BF #BF4072

split-complementary

#B1BF40 #4072BF #8D40BF

monochromatic

#5C6321 #879131 #B1BF40 #C4CE6E #D6DE9C

Accessibility & contrast

On white

2.02

#B1BF40 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.40

#B1BF40 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1BF40

10.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1BF40	#FFFFFF	#000000	##000000
##B1BF40	1.00	2.02	10.40	10.40
#FFFFFF	2.02	1.00	21.00	21.00
#000000	10.40	21.00	1.00	1.00
##000000	10.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CCB62E

Deuteranopia (green-blind)

#CBB749

Tritanopia (blue-blind)

#BCB4A5

Achromatopsia (no color)

#B6B6B6

Design tokens & code

CSS

--color: #b1bf40;
/* rgb */ color: rgb(177, 191, 64);
/* oklch */ color: oklch(77.0% 0.149 115.4);

Tailwind

colors: {
  custom: {
    50: '#cbd27c',
    500: '#b1bf40',
    950: '#000000',
  },
}

SCSS

$custom: #b1bf40;
$custom-light: #cbd27c;
$custom-dark: #000000;

JSON

{
  "hex": "#b1bf40",
  "rgb": {
    "r": 177,
    "g": 191,
    "b": 64
  },
  "hsl": {
    "h": 66.614,
    "s": 49.804,
    "l": 50
  },
  "oklch": {
    "l": 0.77004,
    "c": 0.14913,
    "h": 115.4
  },
  "luminance": 0.46979
}

Semantic roles & 50–950 ramp

primary

#B1BF40

secondary

#9791CA

accent

#4ED95E

background

#FCFCF7

surface

#F9F9EE

border

#D2D2C9

text

#14140A

muted

#82827C

Preview Lab

Preview with #B1BF40

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

Preview Lab → · Contrast checker → · Palette generator →