#A1E451#A1E451

#A1E451 is a very light, vivid yellow-green. Relative luminance 0.637; OKLCH L 84.5% C 0.189 H 130.5°. Best body text is #000000 at 13.73:1 contrast (WCAG AA passes).

Color values

HEX	#A1E451
RGB	rgb(161, 228, 81)
HSL	hsl(87, 73%, 61%)
HSV	hsv(87, 64%, 89%)
CMYK	cmyk(29.4%, 0%, 64.5%, 10.6%)
CIE-LAB	lab(83.79, -43.54, 62.78)
CIE-LCH	lch(83.79, 76.40, 124.74°)
OKLab	oklab(84.55% -0.1228 0.1437)
OKLCH	oklch(84.55% 0.189 130.5)
XYZ	xyz(43.9262, 63.6566, 17.7556)
Luminance	0.6366 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Spring Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A1E451 #9451E4

analogous

#E4DD51 #A1E451 #57E451

triadic

#A1E451 #51A1E4 #E451A1

tetradic

#A1E451 #51E4DD #9451E4 #E45157

square

#A1E451 #51E4DD #9451E4 #E45157

split-complementary

#A1E451 #5157E4 #DD51E4

monochromatic

#63A219 #84D721 #A1E451 #BEEC86 #DAF4BB

Accessibility & contrast

On white

1.53

#A1E451 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.73

#A1E451 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #A1E451

13.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A1E451	#FFFFFF	#000000	##000000
##A1E451	1.00	1.53	13.73	13.73
#FFFFFF	1.53	1.00	21.00	21.00
#000000	13.73	21.00	1.00	1.00
##000000	13.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EED43E

Deuteranopia (green-blind)

#E5CF5D

Tritanopia (blue-blind)

#A4DBC6

Achromatopsia (no color)

#D1D1D1

Design tokens & code

CSS

--color: #a1e451;
/* rgb */ color: rgb(161, 228, 81);
/* oklch */ color: oklch(84.5% 0.189 130.5);

Tailwind

colors: {
  custom: {
    50: '#c1ed88',
    500: '#a1e451',
    950: '#000000',
  },
}

SCSS

$custom: #a1e451;
$custom-light: #c1ed88;
$custom-dark: #000000;

JSON

{
  "hex": "#a1e451",
  "rgb": {
    "r": 161,
    "g": 228,
    "b": 81
  },
  "hsl": {
    "h": 87.347,
    "s": 73.134,
    "l": 60.588
  },
  "oklch": {
    "l": 0.84545,
    "c": 0.18903,
    "h": 130.5
  },
  "luminance": 0.63658
}

Semantic roles & 50–950 ramp

primary

#A1E451

secondary

#6835A4

accent

#10D56A

background

#FDFFFC

surface

#F9FEF4

border

#D2D6CE

text

#13160C

muted

#82857F

Preview Lab

Preview with #A1E451

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

Preview Lab → · Contrast checker → · Palette generator →