#B1D643#B1D643

#B1D643 is a very light, vivid yellow-green. Relative luminance 0.578; OKLCH L 82.2% C 0.174 H 122.6°. Best body text is #000000 at 12.57:1 contrast (WCAG AA passes).

Color values

HEX	#B1D643
RGB	rgb(177, 214, 67)
HSL	hsl(75, 64%, 55%)
HSV	hsv(75, 69%, 84%)
CMYK	cmyk(17.3%, 0%, 68.7%, 16.1%)
CIE-LAB	lab(80.65, -32.20, 65.22)
CIE-LCH	lch(80.65, 72.74, 116.28°)
OKLab	oklab(82.22% -0.0937 0.1467)
OKLCH	oklch(82.22% 0.174 122.6)
XYZ	xyz(43.1917, 57.8453, 14.1989)
Luminance	0.5785 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1D643 #6843D6

analogous

#D6B143 #B1D643 #68D643

triadic

#B1D643 #43B1D6 #D643B1

tetradic

#B1D643 #43D6B1 #6843D6 #D64368

square

#B1D643 #43D6B1 #6843D6 #D64368

split-complementary

#B1D643 #4368D6 #B143D6

monochromatic

#69821C #91B427 #B1D643 #C6E175 #DBECA7

Accessibility & contrast

On white

1.67

#B1D643 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.57

#B1D643 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1D643

12.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1D643	#FFFFFF	#000000	##000000
##B1D643	1.00	1.67	12.57	12.57
#FFFFFF	1.67	1.00	21.00	21.00
#000000	12.57	21.00	1.00	1.00
##000000	12.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E2C92C

Deuteranopia (green-blind)

#DEC84F

Tritanopia (blue-blind)

#BACBB9

Achromatopsia (no color)

#C8C8C8

Design tokens & code

CSS

--color: #b1d643;
/* rgb */ color: rgb(177, 214, 67);
/* oklch */ color: oklch(82.2% 0.174 122.6);

Tailwind

colors: {
  custom: {
    50: '#cce27f',
    500: '#b1d643',
    950: '#000000',
  },
}

SCSS

$custom: #b1d643;
$custom-light: #cce27f;
$custom-dark: #000000;

JSON

{
  "hex": "#b1d643",
  "rgb": {
    "r": 177,
    "g": 214,
    "b": 67
  },
  "hsl": {
    "h": 75.102,
    "s": 64.192,
    "l": 55.098
  },
  "oklch": {
    "l": 0.82222,
    "c": 0.17404,
    "h": 122.6
  },
  "luminance": 0.57845
}

Semantic roles & 50–950 ramp

primary

#B1D643

secondary

#493489

accent

#41E76B

background

#FEFEFB

surface

#FBFCF2

border

#D4D5CC

text

#14150B

muted

#83847E

Preview Lab

Preview with #B1D643

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

Preview Lab → · Contrast checker → · Palette generator →