#A9B628
Closest named color: Mustard Green (#A8B504). oklch(74.2% 0.156 115), rgb(169, 182, 40).
Aa
Black text reads best on this color (9.40:1).
About this color
#A9B628 is a medium-light, vivid yellow. In OKLCH its lightness is 74%, its chroma 0.156 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 0.011 away. Black text reads best on it, at 9.40:1.
| Hue family | Yellows |
| Lightness | medium-light (74%) |
| Chroma | vivid (0.156) |
| Temperature | in between |
| Nearest name | Mustard Green (#A8B504) |
| Black text | 9.40:1 |
| White text | 2.23:1 |
Values
| HEX | #A9B628 |
| RGB | rgb(169, 182, 40) |
| HSL | hsl(65, 64%, 44%) |
| OKLCH | oklch(74.2% 0.156 115) |
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 #A9B628 | 2.23:1 | Fails | Lc -48.6 | Large or bold text, headings |
| Black text on #A9B628 | 9.40:1 | AAA | Lc 60.1 | Content text, not long reading |
| #A9B628 text on white | 2.23:1 | Fails | Lc 43.8 | Non-text elements, placeholder text |
| #A9B628 text on black | 9.40:1 | AAA | Lc -58.3 | 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
#F5F7ED
oklch(97.2% 0.013 115.8)
-
Step 100
100
#E9ECD7
oklch(93.5% 0.028 113.5)
-
Step 200
200
#D7DEB5
oklch(88.5% 0.055 115.4)
-
Step 300
300
#BEC87E
oklch(80.8% 0.097 114.9)
-
Step 400
400 (this color)
#A9B628
oklch(74.2% 0.156 115)
-
Step 500
500
#889300
oklch(63.3% 0.143 115)
-
Step 600
600
#727B00
oklch(55.6% 0.126 114.8)
-
Step 700
700
#5F6700
oklch(49% 0.111 115)
-
Step 800
800
#4E5500
oklch(42.8% 0.097 115.1)
-
Step 900
900
#414600
oklch(37.7% 0.085 114.3)
-
Step 950
950
#262A00
oklch(27.2% 0.062 115.2)
#A9B628 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) | #C3AD00 | 0.040 |
| Deuteranopia (no green cones) | #C3AF35 | 0.044 |
| Tritanopia (no blue cones) | #B4AB9C | 0.138 |
| Achromatopsia (no color) | #ADADAD | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A9B628
#A9B628
oklch(74.2% 0.156 115)
- #B396FF
#B396FF
oklch(74.1% 0.15 295.2)
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 #A9B628, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mustard Green #A8B504 ΔE 0.011
- Pea #A4BF20 ΔE 0.026
- Bright Olive #9CBB04 ΔE 0.027
- Olive Yellow #C2B709 ΔE 0.035
- Muddy Yellow #BFAC05 ΔE 0.037
- Avocado #90B134 ΔE 0.037
- Light Olive Green #A4BE5C ΔE 0.038
- Icky Green #8FAE22 ΔE 0.044
Use #A9B628 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.