#AECA59
Closest named color: Light Moss Green (#A6C875). oklch(79.5% 0.143 121.4), rgb(174, 202, 89).
Aa
Black text reads best on this color (11.39:1).
About this color
#AECA59 is a light, vivid yellow. In OKLCH its lightness is 79%, its chroma 0.143 and its hue 121°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Moss Green (#A6C875), ΔE 0.031 away. Black text reads best on it, at 11.39:1.
| Hue family | Yellows |
| Lightness | light (79%) |
| Chroma | vivid (0.143) |
| Temperature | in between |
| Nearest name | Light Moss Green (#A6C875) |
| Black text | 11.39:1 |
| White text | 1.84:1 |
Values
| HEX | #AECA59 |
| RGB | rgb(174, 202, 89) |
| HSL | hsl(75, 52%, 57%) |
| OKLCH | oklch(79.5% 0.143 121.4) |
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 #AECA59 | 1.84:1 | Fails | Lc -38.7 | Non-text elements, placeholder text |
| Black text on #AECA59 | 11.39:1 | AAA | Lc 69.3 | Content text, not long reading |
| #AECA59 text on white | 1.84:1 | Fails | Lc 34.5 | Non-text elements, placeholder text |
| #AECA59 text on black | 11.39:1 | AAA | Lc -68.0 | 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
#E5EFD0
oklch(93.6% 0.042 121.8)
-
Step 200
200
#D1E2A7
oklch(88.5% 0.08 121.1)
-
Step 300
300 (this color)
#AECA59
oklch(79.5% 0.143 121.4)
-
Step 400
400
#91AF00
oklch(70.6% 0.17 121.2)
-
Step 500
500
#7C9600
oklch(63% 0.151 121.2)
-
Step 600
600
#687E00
oklch(55.5% 0.133 121.1)
-
Step 700
700
#576A00
oklch(49.1% 0.118 121.1)
-
Step 800
800
#475700
oklch(42.8% 0.103 121.1)
-
Step 900
900
#3A4800
oklch(37.6% 0.091 121.4)
-
Step 950
950
#222B00
oklch(27.1% 0.065 121.1)
#AECA59 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) | #D5BF4D | 0.057 |
| Deuteranopia (no green cones) | #D1BF60 | 0.057 |
| Tritanopia (no blue cones) | #B6C1B1 | 0.119 |
| Achromatopsia (no color) | #BFBFBF | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AECA59
#AECA59
oklch(79.5% 0.143 121.4)
- #CAA9FF
#CAA9FF
oklch(79.5% 0.124 301.3)
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 #AECA59, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Moss Green #A6C875 ΔE 0.031
- Pale Olive Green #B1D27B ΔE 0.036
- Light Olive Green #A4BE5C ΔE 0.037
- Light Olive #ACBF69 ΔE 0.039
- Greenish Tan #BCCB7A ΔE 0.042
- Yellow Green #9ACD32 ΔE 0.044
- Pale Olive #B9CC81 ΔE 0.046
- Pea #A4BF20 ΔE 0.047
Use #AECA59 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.