#AAD31E
Closest named color: Yellow Green (#9ACD32). oklch(80.9% 0.192 122.9), rgb(170, 211, 30).
Aa
Black text reads best on this color (12.04:1).
About this color
#AAD31E is a light, vivid yellow. In OKLCH its lightness is 81%, its chroma 0.192 and its hue 123°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Yellow Green (#9ACD32), ΔE 0.028 away. Black text reads best on it, at 12.04:1.
| Hue family | Yellows |
| Lightness | light (81%) |
| Chroma | vivid (0.192) |
| Temperature | in between |
| Nearest name | Yellow Green (#9ACD32) |
| Black text | 12.04:1 |
| White text | 1.74:1 |
Values
| HEX | #AAD31E |
| RGB | rgb(170, 211, 30) |
| HSL | hsl(74, 75%, 47%) |
| OKLCH | oklch(80.9% 0.192 122.9) |
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 #AAD31E | 1.74:1 | Fails | Lc -35.4 | Non-text elements, placeholder text |
| Black text on #AAD31E | 12.04:1 | AAA | Lc 72.3 | Content text, not long reading |
| #AAD31E text on white | 1.74:1 | Fails | Lc 31.5 | Non-text elements, placeholder text |
| #AAD31E text on black | 12.04:1 | AAA | Lc -71.2 | 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
#F2F9E6
oklch(97.2% 0.026 123.4)
-
Step 100
100
#E3F1C8
oklch(93.7% 0.056 122.8)
-
Step 200
200
#CCE596
oklch(88.5% 0.106 122.8)
-
Step 300
300 (this color)
#AAD31E
oklch(80.9% 0.192 122.9)
-
Step 400
400
#8DB100
oklch(70.8% 0.174 123)
-
Step 500
500
#789700
oklch(63% 0.154 123)
-
Step 600
600
#657F00
oklch(55.6% 0.136 122.8)
-
Step 700
700
#546B00
oklch(49.1% 0.121 123.1)
-
Step 800
800
#455700
oklch(42.6% 0.104 122.4)
-
Step 900
900
#394900
oklch(37.8% 0.092 122.7)
-
Step 950
950
#212B00
oklch(27% 0.066 122.2)
#AAD31E 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) | #E0C500 | 0.078 |
| Deuteranopia (no green cones) | #DBC435 | 0.079 |
| Tritanopia (no blue cones) | #B3C8B4 | 0.159 |
| Achromatopsia (no color) | #C4C4C4 | 0.192 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AAD31E
#AAD31E
oklch(80.9% 0.192 122.9)
- #D0AEFF
#D0AEFF
oklch(80.9% 0.117 303.1)
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 #AAD31E, closest first.
No curated palette has a color within ΔE 0.04 of #AAD31E.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Yellow Green #9ACD32 ΔE 0.028
- Slime Green #99CC04 ΔE 0.030
- Kiwi Green #8EE53F ΔE 0.050
- Pea #A4BF20 ΔE 0.055
- Apple Green #76CD26 ΔE 0.061
- Fresh Green #69D84F ΔE 0.063
- Bright Olive #9CBB04 ΔE 0.068
- Apple #6ECB3C ΔE 0.070
Use #AAD31E 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.