#B4F55B#B4F55B

#B4F55B is a very light, vivid yellow-green. Relative luminance 0.758; OKLCH L 89.7% C 0.194 H 129.2°. Best body text is #000000 at 16.15:1 contrast (WCAG AA passes).

Color values

HEX	#B4F55B
RGB	rgb(180, 245, 91)
HSL	hsl(85, 89%, 66%)
HSV	hsv(85, 63%, 96%)
CMYK	cmyk(26.5%, 0%, 62.9%, 3.9%)
CIE-LAB	lab(89.75, -43.33, 65.49)
CIE-LCH	lch(89.75, 78.53, 123.49°)
OKLab	oklab(89.69% -0.1225 0.1504)
OKLCH	oklch(89.69% 0.194 129.2)
XYZ	xyz(53.3629, 75.7621, 21.7076)
Luminance	0.7576 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4F55B #9C5BF5

analogous

#F5E95B #B4F55B #67F55B

triadic

#B4F55B #5BB4F5 #F55BB4

tetradic

#B4F55B #5BF5E9 #9C5BF5 #F55B67

square

#B4F55B #5BF5E9 #9C5BF5 #F55B67

split-complementary

#B4F55B #5B67F5 #E95BF5

monochromatic

#7AC90C #9AF121 #B4F55B #CEF995 #E9FCCE

Accessibility & contrast

On white

1.30

#B4F55B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.15

#B4F55B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B4F55B

16.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4F55B	#FFFFFF	#000000	##000000
##B4F55B	1.00	1.30	16.15	16.15
#FFFFFF	1.30	1.00	21.00	21.00
#000000	16.15	21.00	1.00	1.00
##000000	16.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE548

Deuteranopia (green-blind)

#F7E067

Tritanopia (blue-blind)

#B9EBD5

Achromatopsia (no color)

#E2E2E2

Design tokens & code

CSS

--color: #b4f55b;
/* rgb */ color: rgb(180, 245, 91);
/* oklch */ color: oklch(89.7% 0.194 129.2);

Tailwind

colors: {
  custom: {
    50: '#cef890',
    500: '#b4f55b',
    950: '#000000',
  },
}

SCSS

$custom: #b4f55b;
$custom-light: #cef890;
$custom-dark: #000000;

JSON

{
  "hex": "#b4f55b",
  "rgb": {
    "r": 180,
    "g": 245,
    "b": 91
  },
  "hsl": {
    "h": 85.325,
    "s": 88.506,
    "l": 65.882
  },
  "oklch": {
    "l": 0.89687,
    "c": 0.19396,
    "h": 129.2
  },
  "luminance": 0.75763
}

Semantic roles & 50–950 ramp

primary

#B4F55B

secondary

#6E2EC6

accent

#00E561

background

#FEFFFC

surface

#FBFFF4

border

#D4D7CE

text

#14170D

muted

#83857F

Preview Lab

Preview with #B4F55B

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

Preview Lab → · Contrast checker → · Palette generator →