#AACE5B
Closest named color: Pale Olive Green (#B1D27B). oklch(80.1% 0.148 124.2), rgb(170, 206, 91).
Aa
Black text reads best on this color (11.68:1).
About this color
#AACE5B is a light, vivid yellow. In OKLCH its lightness is 80%, its chroma 0.148 and its hue 124°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Pale Olive Green (#B1D27B), ΔE 0.035 away. Black text reads best on it, at 11.68:1.
| Hue family | Yellows |
| Lightness | light (80%) |
| Chroma | vivid (0.148) |
| Temperature | in between |
| Nearest name | Pale Olive Green (#B1D27B) |
| Black text | 11.68:1 |
| White text | 1.79:1 |
Values
| HEX | #AACE5B |
| RGB | rgb(170, 206, 91) |
| HSL | hsl(79, 54%, 58%) |
| OKLCH | oklch(80.1% 0.148 124.2) |
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 #AACE5B | 1.79:1 | Fails | Lc -37.2 | Non-text elements, placeholder text |
| Black text on #AACE5B | 11.68:1 | AAA | Lc 70.7 | Content text, not long reading |
| #AACE5B text on white | 1.79:1 | Fails | Lc 33.2 | Non-text elements, placeholder text |
| #AACE5B text on black | 11.68:1 | AAA | Lc -69.4 | 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
#F2F8EA
oklch(97.1% 0.019 125.8)
-
Step 100
100
#E4EFD0
oklch(93.6% 0.043 123.1)
-
Step 200
200
#CDE3A7
oklch(88.5% 0.083 124.4)
-
Step 300
300 (this color)
#AACE5B
oklch(80.1% 0.148 124.2)
-
Step 400
400
#8AB200
oklch(70.8% 0.176 124.2)
-
Step 500
500
#769800
oklch(63.1% 0.157 124)
-
Step 600
600
#628000
oklch(55.6% 0.139 124.4)
-
Step 700
700
#526B00
oklch(49% 0.122 124.1)
-
Step 800
800
#435800
oklch(42.7% 0.106 124.1)
-
Step 900
900
#374900
oklch(37.6% 0.094 124.1)
-
Step 950
950
#202C00
oklch(27.2% 0.068 124.1)
#AACE5B 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) | #D8C24F | 0.065 |
| Deuteranopia (no green cones) | #D4C162 | 0.067 |
| Tritanopia (no blue cones) | #B1C5B5 | 0.121 |
| Achromatopsia (no color) | #C1C1C1 | 0.149 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AACE5B
#AACE5B
oklch(80.1% 0.148 124.2)
- #D0AAFF
#D0AAFF
oklch(80.2% 0.124 304.3)
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 #AACE5B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pale Olive Green #B1D27B ΔE 0.035
- Light Moss Green #A6C875 ΔE 0.036
- Yellow Green #9ACD32 ΔE 0.040
- Light Olive Green #A4BE5C ΔE 0.046
- Greenish Tan #BCCB7A ΔE 0.046
- Light Olive #ACBF69 ΔE 0.048
- Pale Olive #B9CC81 ΔE 0.050
- Pea #A4BF20 ΔE 0.051
Use #AACE5B 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.