#ACBA2B
Closest named color: Mustard Green (#A8B504). oklch(75.3% 0.158 115.3), rgb(172, 186, 43).
Aa
Black text reads best on this color (9.81:1).
About this color
#ACBA2B is a medium-light, vivid yellow. In OKLCH its lightness is 75%, its chroma 0.158 and its hue 115°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Mustard Green (#A8B504), ΔE 0.018 away. Black text reads best on it, at 9.81:1.
| Hue family | Yellows |
| Lightness | medium-light (75%) |
| Chroma | vivid (0.158) |
| Temperature | in between |
| Nearest name | Mustard Green (#A8B504) |
| Black text | 9.81:1 |
| White text | 2.14:1 |
Values
| HEX | #ACBA2B |
| RGB | rgb(172, 186, 43) |
| HSL | hsl(66, 62%, 45%) |
| OKLCH | oklch(75.3% 0.158 115.3) |
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 #ACBA2B | 2.14:1 | Fails | Lc -46.5 | Large or bold text, headings |
| Black text on #ACBA2B | 9.81:1 | AAA | Lc 62.1 | Content text, not long reading |
| #ACBA2B text on white | 2.14:1 | Fails | Lc 41.9 | Non-text elements, placeholder text |
| #ACBA2B text on black | 9.81:1 | AAA | Lc -60.4 | 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 400.
-
Step 50
50
#F5F7ED
oklch(97.2% 0.013 115.8)
-
Step 100
100
#E9EDD7
oklch(93.7% 0.029 115.3)
-
Step 200
200
#D7DEB5
oklch(88.5% 0.055 115.4)
-
Step 300
300
#BEC97D
oklch(81% 0.1 115.4)
-
Step 400
400 (this color)
#ACBA2B
oklch(75.3% 0.158 115.3)
-
Step 500
500
#879300
oklch(63.2% 0.144 115.4)
-
Step 600
600
#717B00
oklch(55.5% 0.126 115.3)
-
Step 700
700
#5F6700
oklch(49% 0.111 115)
-
Step 800
800
#4D5500
oklch(42.8% 0.098 115.9)
-
Step 900
900
#404600
oklch(37.6% 0.085 115.2)
-
Step 950
950
#262A00
oklch(27.2% 0.062 115.2)
#ACBA2B 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) | #C8B001 | 0.044 |
| Deuteranopia (no green cones) | #C7B238 | 0.046 |
| Tritanopia (no blue cones) | #B7AF9F | 0.138 |
| Achromatopsia (no color) | #B1B1B1 | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #ACBA2B
#ACBA2B
oklch(75.3% 0.158 115.3)
- #B69BFF
#B69BFF
oklch(75.3% 0.143 295.2)
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 #ACBA2B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mustard Green #A8B504 ΔE 0.018
- Pea #A4BF20 ΔE 0.019
- Bright Olive #9CBB04 ΔE 0.028
- Olive Yellow #C2B709 ΔE 0.030
- Light Olive Green #A4BE5C ΔE 0.035
- Muddy Yellow #BFAC05 ΔE 0.041
- Avocado #90B134 ΔE 0.047
- Mustard #CEB301 ΔE 0.049
Use #ACBA2B 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.