#B4D540#B4D540

#B4D540 is a very light, vivid yellow-green. Relative luminance 0.577; OKLCH L 82.2% C 0.174 H 121.3°. Best body text is #000000 at 12.53:1 contrast (WCAG AA passes).

Color values

HEX	#B4D540
RGB	rgb(180, 213, 64)
HSL	hsl(73, 64%, 54%)
HSV	hsv(73, 70%, 84%)
CMYK	cmyk(15.5%, 0%, 70%, 16.5%)
CIE-LAB	lab(80.55, -30.72, 66.28)
CIE-LCH	lch(80.55, 73.06, 114.87°)
OKLab	oklab(82.18% -0.0901 0.1484)
OKLCH	oklch(82.18% 0.174 121.3)
XYZ	xyz(43.5427, 57.6620, 13.6855)
Luminance	0.5766 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4D540 #6140D5

analogous

#D5AC40 #B4D540 #6AD540

triadic

#B4D540 #40B4D5 #D540B4

tetradic

#B4D540 #40D5AC #6140D5 #D5406A

square

#B4D540 #40D5AC #6140D5 #D5406A

split-complementary

#B4D540 #406AD5 #AC40D5

monochromatic

#697F1C #92B127 #B4D540 #C8E072 #DBEBA4

Accessibility & contrast

On white

1.68

#B4D540 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.53

#B4D540 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B4D540

12.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4D540	#FFFFFF	#000000	##000000
##B4D540	1.00	1.68	12.53	12.53
#FFFFFF	1.68	1.00	21.00	21.00
#000000	12.53	21.00	1.00	1.00
##000000	12.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E2C827

Deuteranopia (green-blind)

#DEC84C

Tritanopia (blue-blind)

#BECAB8

Achromatopsia (no color)

#C8C8C8

Design tokens & code

CSS

--color: #b4d540;
/* rgb */ color: rgb(180, 213, 64);
/* oklch */ color: oklch(82.2% 0.174 121.3);

Tailwind

colors: {
  custom: {
    50: '#cee27e',
    500: '#b4d540',
    950: '#000000',
  },
}

SCSS

$custom: #b4d540;
$custom-light: #cee27e;
$custom-dark: #000000;

JSON

{
  "hex": "#b4d540",
  "rgb": {
    "r": 180,
    "g": 213,
    "b": 64
  },
  "hsl": {
    "h": 73.289,
    "s": 63.948,
    "l": 54.314
  },
  "oklch": {
    "l": 0.82184,
    "c": 0.17356,
    "h": 121.3
  },
  "luminance": 0.57662
}

Semantic roles & 50–950 ramp

primary

#B4D540

secondary

#463386

accent

#41E766

background

#FEFEFB

surface

#FBFCF2

border

#D4D5CC

text

#14150A

muted

#83847D

Preview Lab

Preview with #B4D540

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

Preview Lab → · Contrast checker → · Palette generator →