#AAC657
Closest named color: Light Olive Green (#A4BE5C). oklch(78.3% 0.141 121.6), rgb(170, 198, 87).
Aa
Black text reads best on this color (10.92:1).
About this color
#AAC657 is a light, vivid yellow. In OKLCH its lightness is 78%, its chroma 0.141 and its hue 122°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Olive Green (#A4BE5C), ΔE 0.026 away. Black text reads best on it, at 10.92:1.
| Hue family | Yellows |
| Lightness | light (78%) |
| Chroma | vivid (0.141) |
| Temperature | in between |
| Nearest name | Light Olive Green (#A4BE5C) |
| Black text | 10.92:1 |
| White text | 1.92:1 |
Values
| HEX | #AAC657 |
| RGB | rgb(170, 198, 87) |
| HSL | hsl(75, 49%, 56%) |
| OKLCH | oklch(78.3% 0.141 121.6) |
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 #AAC657 | 1.92:1 | Fails | Lc -41.0 | Non-text elements, placeholder text |
| Black text on #AAC657 | 10.92:1 | AAA | Lc 67.2 | Content text, not long reading |
| #AAC657 text on white | 1.92:1 | Fails | Lc 36.7 | Non-text elements, placeholder text |
| #AAC657 text on black | 10.92:1 | AAA | Lc -65.8 | 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
#F3F8EA
oklch(97.2% 0.019 122.8)
-
Step 100
100
#E5EFD1
oklch(93.7% 0.041 122.2)
-
Step 200
200
#D0E2A8
oklch(88.5% 0.079 122)
-
Step 300
300 (this color)
#AAC657
oklch(78.3% 0.141 121.6)
-
Step 400
400
#90B000
oklch(70.8% 0.171 121.8)
-
Step 500
500
#7B9700
oklch(63.2% 0.153 121.9)
-
Step 600
600
#677E00
oklch(55.5% 0.134 121.5)
-
Step 700
700
#566A00
oklch(49% 0.118 121.7)
-
Step 800
800
#465700
oklch(42.7% 0.103 121.8)
-
Step 900
900
#3A4800
oklch(37.6% 0.091 121.4)
-
Step 950
950
#222B00
oklch(27.1% 0.065 121.1)
#AAC657 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) | #D1BB4C | 0.057 |
| Deuteranopia (no green cones) | #CDBB5E | 0.057 |
| Tritanopia (no blue cones) | #B2BDAE | 0.118 |
| Achromatopsia (no color) | #BBBBBB | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AAC657
#AAC657
oklch(78.3% 0.141 121.6)
- #C7A3FF
#C7A3FF
oklch(78.2% 0.133 301.4)
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 #AAC657, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Olive Green #A4BE5C ΔE 0.026
- Light Moss Green #A6C875 ΔE 0.029
- Light Olive #ACBF69 ΔE 0.031
- Tan Green #A9BE70 ΔE 0.039
- Pea #A4BF20 ΔE 0.039
- Pale Olive Green #B1D27B ΔE 0.044
- Yellow Green #9ACD32 ΔE 0.045
- Greenish Tan #BCCB7A ΔE 0.047
Use #AAC657 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.