#ACA181
Closest named color: Stone (#ADA587). oklch(71% 0.046 91.3), rgb(172, 161, 129).
Aa
Black text reads best on this color (8.16:1).
About this color
#ACA181 is a medium-light, muted yellow. In OKLCH its lightness is 71%, its chroma 0.046 and its hue 91°. Its hue sits on the warm side of the wheel. The nearest named color is Stone (#ADA587), ΔE 0.012 away. Black text reads best on it, at 8.16:1.
| Hue family | Yellows |
| Lightness | medium-light (71%) |
| Chroma | muted (0.046) |
| Temperature | warm |
| Nearest name | Stone (#ADA587) |
| Black text | 8.16:1 |
| White text | 2.57:1 |
Values
| HEX | #ACA181 |
| RGB | rgb(172, 161, 129) |
| HSL | hsl(45, 21%, 59%) |
| OKLCH | oklch(71% 0.046 91.3) |
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 #ACA181 | 2.57:1 | Fails | Lc -55.4 | Large or bold text, headings |
| Black text on #ACA181 | 8.16:1 | AAA | Lc 53.7 | Large or bold text, headings |
| #ACA181 text on white | 2.57:1 | Fails | Lc 50.3 | Large or bold text, headings |
| #ACA181 text on black | 8.16:1 | AAA | Lc -51.6 | Large or bold text, headings |
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 400.
-
Step 50
50
#F6F5F3
oklch(97% 0.003 84.6)
-
Step 100
100
#ECEAE4
oklch(93.7% 0.008 91.5)
-
Step 200
200
#DDD9CD
oklch(88.5% 0.017 91.6)
-
Step 300
300
#C7C0AC
oklch(80.8% 0.028 90.9)
-
Step 400
400 (this color)
#ACA181
oklch(71% 0.046 91.3)
-
Step 500
500
#978960
oklch(63.2% 0.06 91.4)
-
Step 600
600
#817246
oklch(55.5% 0.064 91.3)
-
Step 700
700
#6D6038
oklch(49.2% 0.06 92)
-
Step 800
800
#594E2F
oklch(42.7% 0.049 90.6)
-
Step 900
900
#49412A
oklch(37.7% 0.038 91.1)
-
Step 950
950
#2B2619
oklch(27% 0.024 89.4)
#ACA181 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) | #A8A07F | 0.007 |
| Deuteranopia (no green cones) | #ABA382 | 0.005 |
| Tritanopia (no blue cones) | #B39C98 | 0.041 |
| Achromatopsia (no color) | #A1A1A1 | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #ACA181
#ACA181
oklch(71% 0.046 91.3)
- #97A0BF
#97A0BF
oklch(70.9% 0.046 272.4)
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 #ACA181, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Stone #ADA587 ΔE 0.012
- Taupe #B9A281 ΔE 0.020
- Bland #AFA88B ΔE 0.021
- Cement #A5A391 ΔE 0.022
- Mushroom #BA9E88 ΔE 0.026
- Dust #B2996E ΔE 0.027
- Pale Brown #B1916E ΔE 0.042
- Dark Beige #AC9362 ΔE 0.045
Use #ACA181 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.