#ACB451
Closest named color: Light Olive Green (#A4BE5C). oklch(74.3% 0.124 113.2), rgb(172, 180, 81).
Aa
Black text reads best on this color (9.40:1).
About this color
#ACB451 is a medium-light, moderately saturated yellow. In OKLCH its lightness is 74%, its chroma 0.124 and its hue 113°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Olive Green (#A4BE5C), ΔE 0.026 away. Black text reads best on it, at 9.40:1.
| Hue family | Yellows |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.124) |
| Temperature | in between |
| Nearest name | Light Olive Green (#A4BE5C) |
| Black text | 9.40:1 |
| White text | 2.23:1 |
Values
| HEX | #ACB451 |
| RGB | rgb(172, 180, 81) |
| HSL | hsl(65, 40%, 51%) |
| OKLCH | oklch(74.3% 0.124 113.2) |
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 #ACB451 | 2.23:1 | Fails | Lc -48.7 | Large or bold text, headings |
| Black text on #ACB451 | 9.40:1 | AAA | Lc 60.0 | Content text, not long reading |
| #ACB451 text on white | 2.23:1 | Fails | Lc 43.9 | Non-text elements, placeholder text |
| #ACB451 text on black | 9.40:1 | AAA | Lc -58.2 | 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
#F5F6EF
oklch(97% 0.009 113.2)
-
Step 100
100
#E9ECDB
oklch(93.6% 0.023 115)
-
Step 200
200
#D9DDBD
oklch(88.6% 0.043 113.1)
-
Step 300
300
#C0C78D
oklch(81% 0.077 113.7)
-
Step 400
400 (this color)
#ACB451
oklch(74.3% 0.124 113.2)
-
Step 500
500
#8A9200
oklch(63.2% 0.142 113.6)
-
Step 600
600
#747A00
oklch(55.6% 0.124 113.2)
-
Step 700
700
#616700
oklch(49.2% 0.11 113.7)
-
Step 800
800
#4F5400
oklch(42.7% 0.096 113.7)
-
Step 900
900
#424600
oklch(37.8% 0.084 113.4)
-
Step 950
950
#272900
oklch(27% 0.06 112.6)
#ACB451 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) | #C0AC47 | 0.032 |
| Deuteranopia (no green cones) | #C0AF57 | 0.033 |
| Tritanopia (no blue cones) | #B6AB9E | 0.108 |
| Achromatopsia (no color) | #ADADAD | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #ACB451
#ACB451
oklch(74.3% 0.124 113.2)
- #AF9CF3
#AF9CF3
oklch(74.3% 0.125 293.2)
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 #ACB451, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Olive Green #A4BE5C ΔE 0.026
- Light Olive #ACBF69 ΔE 0.032
- Tan Green #A9BE70 ΔE 0.034
- Dark Khaki #BDB76B ΔE 0.039
- Muddy Yellow #BFAC05 ΔE 0.041
- Mustard Green #A8B504 ΔE 0.043
- Olive Yellow #C2B709 ΔE 0.047
- Avocado #90B134 ΔE 0.049
Use #ACB451 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.