#ACA520
Closest named color: Brown Yellow (#B29705). oklch(70.6% 0.142 106.3), rgb(172, 165, 32).
Aa
Black text reads best on this color (8.15:1).
About this color
#ACA520 is a medium-light, vivid yellow. In OKLCH its lightness is 71%, its chroma 0.142 and its hue 106°. Its hue sits on the warm side of the wheel. The nearest named color is Brown Yellow (#B29705), ΔE 0.036 away. Black text reads best on it, at 8.15:1.
| Hue family | Yellows |
| Lightness | medium-light (71%) |
| Chroma | vivid (0.142) |
| Temperature | warm |
| Nearest name | Brown Yellow (#B29705) |
| Black text | 8.15:1 |
| White text | 2.57:1 |
Values
| HEX | #ACA520 |
| RGB | rgb(172, 165, 32) |
| HSL | hsl(57, 69%, 40%) |
| OKLCH | oklch(70.6% 0.142 106.3) |
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 #ACA520 | 2.57:1 | Fails | Lc -55.3 | Large or bold text, headings |
| Black text on #ACA520 | 8.15:1 | AAA | Lc 53.8 | Large or bold text, headings |
| #ACA520 text on white | 2.57:1 | Fails | Lc 50.2 | Large or bold text, headings |
| #ACA520 text on black | 8.15:1 | AAA | Lc -51.7 | 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
#F6F6ED
oklch(97.1% 0.012 106.6)
-
Step 100
100
#ECEBD8
oklch(93.6% 0.025 104.4)
-
Step 200
200
#DDDCB7
oklch(88.6% 0.049 106.1)
-
Step 300
300
#C7C580
oklch(80.9% 0.09 106.8)
-
Step 400
400 (this color)
#ACA520
oklch(70.6% 0.142 106.3)
-
Step 500
500
#948E00
oklch(63.1% 0.135 106.7)
-
Step 600
600
#7D7700
oklch(55.7% 0.119 106.2)
-
Step 700
700
#696400
oklch(49.2% 0.105 106.3)
-
Step 800
800
#565200
oklch(42.9% 0.092 106.4)
-
Step 900
900
#474400
oklch(37.7% 0.081 106.8)
-
Step 950
950
#2A2800
oklch(27% 0.058 106.8)
#ACA520 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) | #B49F00 | 0.018 |
| Deuteranopia (no green cones) | #B7A42C | 0.019 |
| Tritanopia (no blue cones) | #B9998D | 0.130 |
| Achromatopsia (no color) | #A1A1A1 | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #ACA520
#ACA520
oklch(70.6% 0.142 106.3)
- #9A91F4
#9A91F4
oklch(70.6% 0.142 286.3)
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 #ACA520, closest first.
No curated palette has a color within ΔE 0.04 of #ACA520.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brown Yellow #B29705 ΔE 0.036
- Pea Soup Green #94A617 ΔE 0.036
- Ocher #BF9B0C ΔE 0.036
- Muddy Yellow #BFAC05 ΔE 0.036
- Ocre #C69C04 ΔE 0.043
- Yellow Brown #B79400 ΔE 0.044
- Dark Gold #B59410 ΔE 0.044
- Icky Green #8FAE22 ΔE 0.045
Use #ACA520 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.