#B9D21F#B9D21F

#B9D21F is a light, vivid yellow. Relative luminance 0.565; OKLCH L 81.7% C 0.184 H 118.2°. Best body text is #000000 at 12.30:1 contrast (WCAG AA passes).

Color values

HEX	#B9D21F
RGB	rgb(185, 210, 31)
HSL	hsl(68, 74%, 47%)
HSV	hsv(68, 85%, 82%)
CMYK	cmyk(11.9%, 0%, 85.2%, 17.6%)
CIE-LAB	lab(79.90, -28.63, 75.35)
CIE-LCH	lch(79.90, 80.60, 110.81°)
OKLab	oklab(81.7% -0.087 0.1621)
OKLCH	oklch(81.7% 0.184 118.2)
XYZ	xyz(43.3026, 56.5068, 9.9218)
Luminance	0.5651 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B9D21F #381FD2

analogous

#D2921F #B9D21F #5FD21F

triadic

#B9D21F #1FB9D2 #D21FB9

tetradic

#B9D21F #1FD292 #381FD2 #D21F5F

square

#B9D21F #1FD292 #381FD2 #D21F5F

split-complementary

#B9D21F #1F5FD2 #921FD2

monochromatic

#5B670F #8A9D17 #B9D21F #CFE44A #DDEC7F

Accessibility & contrast

On white

1.71

#B9D21F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.30

#B9D21F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B9D21F

12.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B9D21F	#FFFFFF	#000000	##000000
##B9D21F	1.00	1.71	12.30	12.30
#FFFFFF	1.71	1.00	21.00	21.00
#000000	12.30	21.00	1.00	1.00
##000000	12.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E1C600

Deuteranopia (green-blind)

#DEC735

Tritanopia (blue-blind)

#C5C6B3

Achromatopsia (no color)

#C6C6C6

Design tokens & code

CSS

--color: #b9d21f;
/* rgb */ color: rgb(185, 210, 31);
/* oklch */ color: oklch(81.7% 0.184 118.2);

Tailwind

colors: {
  custom: {
    50: '#d2df70',
    500: '#b9d21f',
    950: '#000000',
  },
}

SCSS

$custom: #b9d21f;
$custom-light: #d2df70;
$custom-dark: #000000;

JSON

{
  "hex": "#b9d21f",
  "rgb": {
    "r": 185,
    "g": 210,
    "b": 31
  },
  "hsl": {
    "h": 68.38,
    "s": 74.274,
    "l": 47.255
  },
  "oklch": {
    "l": 0.81699,
    "c": 0.184,
    "h": 118.2
  },
  "luminance": 0.56506
}

Semantic roles & 50–950 ramp

primary

#B9D21F

secondary

#2F2471

accent

#37F151

background

#FEFEFB

surface

#FCFCF1

border

#D5D5CB

text

#151509

muted

#84847D

Preview Lab

Preview with #B9D21F

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

Preview Lab → · Contrast checker → · Palette generator →