#AAB440
Closest named color: Mustard Green (#A8B504). oklch(74% 0.139 114), rgb(170, 180, 64).
Aa
Black text reads best on this color (9.31:1).
About this color
#AAB440 is a medium-light, moderately saturated yellow. In OKLCH its lightness is 74%, its chroma 0.139 and its hue 114°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Mustard Green (#A8B504), ΔE 0.028 away. Black text reads best on it, at 9.31:1.
| Hue family | Yellows |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.139) |
| Temperature | in between |
| Nearest name | Mustard Green (#A8B504) |
| Black text | 9.31:1 |
| White text | 2.25:1 |
Values
| HEX | #AAB440 |
| RGB | rgb(170, 180, 64) |
| HSL | hsl(65, 48%, 48%) |
| OKLCH | oklch(74% 0.139 114) |
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 #AAB440 | 2.25:1 | Fails | Lc -49.2 | Large or bold text, headings |
| Black text on #AAB440 | 9.31:1 | AAA | Lc 59.6 | Large or bold text, headings |
| #AAB440 text on white | 2.25:1 | Fails | Lc 44.4 | Non-text elements, placeholder text |
| #AAB440 text on black | 9.31:1 | AAA | Lc -57.8 | 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
#F5F6EE
oklch(97% 0.011 112.4)
-
Step 100
100
#E9ECD9
oklch(93.6% 0.025 114.2)
-
Step 200
200
#D8DDB9
oklch(88.4% 0.048 113.8)
-
Step 300
300
#BFC786
oklch(80.8% 0.086 114.1)
-
Step 400
400 (this color)
#AAB440
oklch(74% 0.139 114)
-
Step 500
500
#899200
oklch(63.1% 0.142 114.1)
-
Step 600
600
#737B00
oklch(55.7% 0.125 114.2)
-
Step 700
700
#606700
oklch(49.1% 0.111 114.3)
-
Step 800
800
#4F5400
oklch(42.7% 0.096 113.7)
-
Step 900
900
#414600
oklch(37.7% 0.085 114.3)
-
Step 950
950
#262900
oklch(26.9% 0.06 113.9)
#AAB440 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) | #C1AC31 | 0.036 |
| Deuteranopia (no green cones) | #C0AE48 | 0.037 |
| Tritanopia (no blue cones) | #B5AA9C | 0.122 |
| Achromatopsia (no color) | #ADADAD | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AAB440
#AAB440
oklch(74% 0.139 114)
- #B098F9
#B098F9
oklch(73.9% 0.139 294.1)
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 #AAB440, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mustard Green #A8B504 ΔE 0.028
- Light Olive Green #A4BE5C ΔE 0.030
- Muddy Yellow #BFAC05 ΔE 0.035
- Avocado #90B134 ΔE 0.039
- Olive Yellow #C2B709 ΔE 0.040
- Pea #A4BF20 ΔE 0.041
- Light Olive #ACBF69 ΔE 0.042
- Bright Olive #9CBB04 ΔE 0.043
Use #AAB440 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.