#A1D551#A1D551

#A1D551 is a light, vivid yellow-green. Relative luminance 0.558; OKLCH L 81.0% C 0.170 H 128.0°. Best body text is #000000 at 12.15:1 contrast (WCAG AA passes).

Color values

HEX	#A1D551
RGB	rgb(161, 213, 81)
HSL	hsl(84, 61%, 58%)
HSV	hsv(84, 62%, 84%)
CMYK	cmyk(24.4%, 0%, 62%, 16.5%)
CIE-LAB	lab(79.48, -36.91, 58.12)
CIE-LCH	lch(79.48, 68.85, 122.42°)
OKLab	oklab(81.05% -0.1046 0.1339)
OKLCH	oklch(81.05% 0.17 128)
XYZ	xyz(39.9773, 55.7589, 16.4393)
Luminance	0.5576 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A1D551 #8551D5

analogous

#D5C751 #A1D551 #5FD551

triadic

#A1D551 #51A1D5 #D551A1

tetradic

#A1D551 #51D5C7 #8551D5 #D5515F

square

#A1D551 #51D5C7 #8551D5 #D5515F

split-complementary

#A1D551 #515FD5 #C751D5

monochromatic

#618A21 #83BC2D #A1D551 #BCE182 #D6EDB4

Accessibility & contrast

On white

1.73

#A1D551 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.15

#A1D551 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #A1D551

12.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A1D551	#FFFFFF	#000000	##000000
##A1D551	1.00	1.73	12.15	12.15
#FFFFFF	1.73	1.00	21.00	21.00
#000000	12.15	21.00	1.00	1.00
##000000	12.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DFC741

Deuteranopia (green-blind)

#D8C45B

Tritanopia (blue-blind)

#A6CCB9

Achromatopsia (no color)

#C5C5C5

Design tokens & code

CSS

--color: #a1d551;
/* rgb */ color: rgb(161, 213, 81);
/* oklch */ color: oklch(81.0% 0.170 128.0);

Tailwind

colors: {
  custom: {
    50: '#c0e287',
    500: '#a1d551',
    950: '#000000',
  },
}

SCSS

$custom: #a1d551;
$custom-light: #c0e287;
$custom-dark: #000000;

JSON

{
  "hex": "#a1d551",
  "rgb": {
    "r": 161,
    "g": 213,
    "b": 81
  },
  "hsl": {
    "h": 83.636,
    "s": 61.111,
    "l": 57.647
  },
  "oklch": {
    "l": 0.81047,
    "c": 0.16986,
    "h": 128
  },
  "luminance": 0.5576
}

Semantic roles & 50–950 ramp

primary

#A1D551

secondary

#5C3A90

accent

#44E483

background

#FDFEFC

surface

#F9FCF4

border

#D2D5CE

text

#13150C

muted

#82847F

Preview Lab

Preview with #A1D551

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

Preview Lab → · Contrast checker → · Palette generator →