#B9D12B#B9D12B

#B9D12B is a light, vivid yellow. Relative luminance 0.561; OKLCH L 81.5% C 0.178 H 118.1°. Best body text is #000000 at 12.22:1 contrast (WCAG AA passes).

Color values

HEX	#B9D12B
RGB	rgb(185, 209, 43)
HSL	hsl(69, 66%, 49%)
HSV	hsv(69, 79%, 82%)
CMYK	cmyk(11.5%, 0%, 79.4%, 18%)
CIE-LAB	lab(79.67, -27.78, 72.26)
CIE-LCH	lch(79.67, 77.42, 111.03°)
OKLab	oklab(81.52% -0.0839 0.1574)
OKLCH	oklch(81.52% 0.178 118.1)
XYZ	xyz(43.2452, 56.0901, 10.8333)
Luminance	0.5609 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B9D12B #432BD1

analogous

#D1962B #B9D12B #66D12B

triadic

#B9D12B #2BB9D1 #D12BB9

tetradic

#B9D12B #2BD196 #432BD1 #D12B66

square

#B9D12B #2BD196 #432BD1 #D12B66

split-complementary

#B9D12B #2B66D1 #962BD1

monochromatic

#5F6B16 #8C9E21 #B9D12B #CBDD5C #DBE88F

Accessibility & contrast

On white

1.72

#B9D12B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.22

#B9D12B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B9D12B

12.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B9D12B	#FFFFFF	#000000	##000000
##B9D12B	1.00	1.72	12.22	12.22
#FFFFFF	1.72	1.00	21.00	21.00
#000000	12.22	21.00	1.00	1.00
##000000	12.22	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DFC500

Deuteranopia (green-blind)

#DDC63C

Tritanopia (blue-blind)

#C5C5B3

Achromatopsia (no color)

#C5C5C5

Design tokens & code

CSS

--color: #b9d12b;
/* rgb */ color: rgb(185, 209, 43);
/* oklch */ color: oklch(81.5% 0.178 118.1);

Tailwind

colors: {
  custom: {
    50: '#d2df74',
    500: '#b9d12b',
    950: '#000000',
  },
}

SCSS

$custom: #b9d12b;
$custom-light: #d2df74;
$custom-dark: #000000;

JSON

{
  "hex": "#b9d12b",
  "rgb": {
    "r": 185,
    "g": 209,
    "b": 43
  },
  "hsl": {
    "h": 68.675,
    "s": 65.873,
    "l": 49.412
  },
  "oklch": {
    "l": 0.81522,
    "c": 0.17838,
    "h": 118.1
  },
  "luminance": 0.5609
}

Semantic roles & 50–950 ramp

primary

#B9D12B

secondary

#362B75

accent

#3FE958

background

#FEFEFB

surface

#FBFCF1

border

#D4D5CB

text

#151509

muted

#84847D

Preview Lab

Preview with #B9D12B

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

Preview Lab → · Contrast checker → · Palette generator →