#ACB027
Closest named color: Mustard Green (#A8B504). oklch(73.1% 0.15 111.3), rgb(172, 176, 39).
Aa
Black text reads best on this color (8.99:1).
About this color
#ACB027 is a medium-light, vivid yellow. In OKLCH its lightness is 73%, its chroma 0.150 and its hue 111°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Mustard Green (#A8B504), ΔE 0.020 away. Black text reads best on it, at 8.99:1.
| Hue family | Yellows |
| Lightness | medium-light (73%) |
| Chroma | vivid (0.150) |
| Temperature | in between |
| Nearest name | Mustard Green (#A8B504) |
| Black text | 8.99:1 |
| White text | 2.33:1 |
Values
| HEX | #ACB027 |
| RGB | rgb(172, 176, 39) |
| HSL | hsl(62, 64%, 42%) |
| OKLCH | oklch(73.1% 0.15 111.3) |
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 #ACB027 | 2.33:1 | Fails | Lc -50.8 | Large or bold text, headings |
| Black text on #ACB027 | 8.99:1 | AAA | Lc 58.1 | Large or bold text, headings |
| #ACB027 text on white | 2.33:1 | Fails | Lc 45.9 | Large or bold text, headings |
| #ACB027 text on black | 8.99:1 | AAA | Lc -56.2 | 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
#F5F6ED
oklch(97% 0.012 111.8)
-
Step 100
100
#EAECD8
oklch(93.6% 0.027 111.5)
-
Step 200
200
#DADDB6
oklch(88.5% 0.052 111)
-
Step 300
300
#C2C77F
oklch(80.9% 0.094 111.7)
-
Step 400
400 (this color)
#ACB027
oklch(73.1% 0.15 111.3)
-
Step 500
500
#8D9000
oklch(63% 0.139 111.3)
-
Step 600
600
#777900
oklch(55.6% 0.122 110.9)
-
Step 700
700
#636600
oklch(49.1% 0.109 111.8)
-
Step 800
800
#515300
oklch(42.6% 0.094 111.4)
-
Step 900
900
#444500
oklch(37.7% 0.083 110.7)
-
Step 950
950
#282900
oklch(27.1% 0.06 111.2)
#ACB027 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) | #BEA800 | 0.030 |
| Deuteranopia (no green cones) | #BFAB33 | 0.033 |
| Tritanopia (no blue cones) | #B8A597 | 0.134 |
| Achromatopsia (no color) | #AAAAAA | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #ACB027
#ACB027
oklch(73.1% 0.15 111.3)
- #AA95FE
#AA95FE
oklch(73.1% 0.15 291.4)
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 #ACB027, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mustard Green #A8B504 ΔE 0.020
- Muddy Yellow #BFAC05 ΔE 0.027
- Avocado #90B134 ΔE 0.037
- Olive Yellow #C2B709 ΔE 0.039
- Bright Olive #9CBB04 ΔE 0.040
- Icky Green #8FAE22 ΔE 0.041
- Pea #A4BF20 ΔE 0.042
- Light Olive Green #A4BE5C ΔE 0.045
Use #ACB027 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.