#B1C43A#B1C43A

#B1C43A is a light, vivid yellow. Relative luminance 0.491; OKLCH L 78.1% C 0.159 H 117.1°. Best body text is #000000 at 10.83:1 contrast (WCAG AA passes).

Color values

HEX	#B1C43A
RGB	rgb(177, 196, 58)
HSL	hsl(68, 54%, 50%)
HSV	hsv(68, 70%, 77%)
CMYK	cmyk(9.7%, 0%, 70.4%, 23.1%)
CIE-LAB	lab(75.53, -24.16, 63.41)
CIE-LCH	lch(75.53, 67.86, 110.85°)
OKLab	oklab(78.08% -0.0723 0.1415)
OKLCH	oklch(78.08% 0.159 117.1)
XYZ	xyz(38.6360, 49.1329, 11.4504)
Luminance	0.4913 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1C43A #4D3AC4

analogous

#C4923A #B1C43A #6CC43A

triadic

#B1C43A #3AB1C4 #C43AB1

tetradic

#B1C43A #3AC492 #4D3AC4 #C43A6C

square

#B1C43A #3AC492 #4D3AC4 #C43A6C

split-complementary

#B1C43A #3A6CC4 #923AC4

monochromatic

#5C661E #86952C #B1C43A #C4D369 #D6E098

Accessibility & contrast

On white

1.94

#B1C43A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.83

#B1C43A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1C43A

10.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1C43A	#FFFFFF	#000000	##000000
##B1C43A	1.00	1.94	10.83	10.83
#FFFFFF	1.94	1.00	21.00	21.00
#000000	10.83	21.00	1.00	1.00
##000000	10.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D1BA22

Deuteranopia (green-blind)

#CFBB45

Tritanopia (blue-blind)

#BCB9A9

Achromatopsia (no color)

#BABABA

Design tokens & code

CSS

--color: #b1c43a;
/* rgb */ color: rgb(177, 196, 58);
/* oklch */ color: oklch(78.1% 0.159 117.1);

Tailwind

colors: {
  custom: {
    50: '#ccd579',
    500: '#b1c43a',
    950: '#000000',
  },
}

SCSS

$custom: #b1c43a;
$custom-light: #ccd579;
$custom-dark: #000000;

JSON

{
  "hex": "#b1c43a",
  "rgb": {
    "r": 177,
    "g": 196,
    "b": 58
  },
  "hsl": {
    "h": 68.261,
    "s": 54.331,
    "l": 49.804
  },
  "oklch": {
    "l": 0.78081,
    "c": 0.15885,
    "h": 117.1
  },
  "luminance": 0.49132
}

Semantic roles & 50–950 ramp

primary

#B1C43A

secondary

#968ECC

accent

#4ADE5E

background

#FCFDF7

surface

#F9FAEE

border

#D2D3C9

text

#14140A

muted

#82837C

Preview Lab

Preview with #B1C43A

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

Preview Lab → · Contrast checker → · Palette generator →