#A1DD99
Closest named color: Hospital Green (#9BE5AA). oklch(84% 0.111 141.6), rgb(161, 221, 153).
Aa
Black text reads best on this color (13.31:1).
About this color
#A1DD99 is a light, moderately saturated green. In OKLCH its lightness is 84%, its chroma 0.111 and its hue 142°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Hospital Green (#9BE5AA), ΔE 0.024 away. Black text reads best on it, at 13.31:1.
| Hue family | Greens |
| Lightness | light (84%) |
| Chroma | moderately saturated (0.111) |
| Temperature | in between |
| Nearest name | Hospital Green (#9BE5AA) |
| Black text | 13.31:1 |
| White text | 1.57:1 |
Values
| HEX | #A1DD99 |
| RGB | rgb(161, 221, 153) |
| HSL | hsl(113, 50%, 73%) |
| OKLCH | oklch(84% 0.111 141.6) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #A1DD99 | 1.57:1 | Fails | Lc -29.6 | Dividers and decoration only |
| Black text on #A1DD99 | 13.31:1 | AAA | Lc 77.6 | Fine for body text |
| #A1DD99 text on white | 1.57:1 | Fails | Lc 26.2 | Dividers and decoration only |
| #A1DD99 text on black | 13.31:1 | AAA | Lc -76.9 | Fine for body text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 300.
-
Step 50
50
#F0F8EF
oklch(97.1% 0.015 142.2)
-
Step 100
100
#DEF0DC
oklch(93.6% 0.033 142.5)
-
Step 200
200
#C3E4BE
oklch(88.5% 0.062 141.4)
-
Step 300
300 (this color)
#A1DD99
oklch(84% 0.111 141.6)
-
Step 400
400
#56BB4B
oklch(70.7% 0.178 141.7)
-
Step 500
500
#1BA600
oklch(63.1% 0.21 141.6)
-
Step 600
600
#158C00
oklch(55.7% 0.186 141.6)
-
Step 700
700
#107600
oklch(49.2% 0.164 141.6)
-
Step 800
800
#0B6100
oklch(42.8% 0.143 141.7)
-
Step 900
900
#085100
oklch(37.8% 0.126 141.6)
-
Step 950
950
#033000
oklch(26.9% 0.09 141.6)
#A1DD99 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #E1D195 | 0.083 |
| Deuteranopia (no green cones) | #D7CC9D | 0.080 |
| Tritanopia (no blue cones) | #9DD9CB | 0.071 |
| Achromatopsia (no color) | #CECECE | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A1DD99
#A1DD99
oklch(84% 0.111 141.6)
- #ECB2F6
#ECB2F6
oklch(83.9% 0.111 321.4)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #A1DD99, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Hospital Green #9BE5AA ΔE 0.024
- Light Grey Green #B7E1A1 ΔE 0.031
- Pale Olive Green #B1D27B ΔE 0.038
- Pale Olive #B9CC81 ΔE 0.048
- Light Teal #90E4C1 ΔE 0.049
- Light Green #90EE90 ΔE 0.053
- Greenish Tan #BCCB7A ΔE 0.053
- Greenish Beige #C9D179 ΔE 0.055
Use #A1DD99 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.