#A1D159
Closest named color: Yellow Green (#9ACD32). oklch(80.2% 0.158 127.8), rgb(161, 209, 89).
Aa
Black text reads best on this color (11.77:1).
About this color
#A1D159 is a light, vivid green. In OKLCH its lightness is 80%, its chroma 0.158 and its hue 128°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Yellow Green (#9ACD32), ΔE 0.031 away. Black text reads best on it, at 11.77:1.
| Hue family | Greens |
| Lightness | light (80%) |
| Chroma | vivid (0.158) |
| Temperature | in between |
| Nearest name | Yellow Green (#9ACD32) |
| Black text | 11.77:1 |
| White text | 1.78:1 |
Values
| HEX | #A1D159 |
| RGB | rgb(161, 209, 89) |
| HSL | hsl(84, 57%, 58%) |
| OKLCH | oklch(80.2% 0.158 127.8) |
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 #A1D159 | 1.78:1 | Fails | Lc -36.8 | Non-text elements, placeholder text |
| Black text on #A1D159 | 11.77:1 | AAA | Lc 71.1 | Content text, not long reading |
| #A1D159 text on white | 1.78:1 | Fails | Lc 32.8 | Non-text elements, placeholder text |
| #A1D159 text on black | 11.77:1 | AAA | Lc -69.9 | Content text, not long reading |
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
#F1F8E9
oklch(97% 0.021 127.4)
-
Step 100
100
#E1F0D0
oklch(93.6% 0.045 127.8)
-
Step 200
200
#C9E5A6
oklch(88.6% 0.088 127.6)
-
Step 300
300 (this color)
#A1D159
oklch(80.2% 0.158 127.8)
-
Step 400
400
#7FB400
oklch(70.6% 0.184 127.8)
-
Step 500
500
#6C9B00
oklch(63.2% 0.165 128)
-
Step 600
600
#5A8200
oklch(55.6% 0.145 128)
-
Step 700
700
#4B6D00
oklch(49% 0.128 127.9)
-
Step 800
800
#3D5A00
oklch(42.8% 0.112 128.1)
-
Step 900
900
#324B00
oklch(37.8% 0.099 128.2)
-
Step 950
950
#1C2C00
oklch(26.9% 0.07 127.9)
#A1D159 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) | #DBC44C | 0.079 |
| Deuteranopia (no green cones) | #D4C161 | 0.080 |
| Tritanopia (no blue cones) | #A6C8B7 | 0.125 |
| Achromatopsia (no color) | #C2C2C2 | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A1D159
#A1D159
oklch(80.2% 0.158 127.8)
- #D5A7FF
#D5A7FF
oklch(80.2% 0.13 307.7)
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 #A1D159, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Yellow Green #9ACD32 ΔE 0.031
- Pale Olive Green #B1D27B ΔE 0.043
- Light Moss Green #A6C875 ΔE 0.045
- Slime Green #99CC04 ΔE 0.045
- Pea #A4BF20 ΔE 0.051
- Light Olive Green #A4BE5C ΔE 0.053
- Greenish Tan #BCCB7A ΔE 0.058
- Light Olive #ACBF69 ΔE 0.058
Use #A1D159 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.