#A9B830
Closest named color: Mustard Green (#A8B504). oklch(74.7% 0.154 115.8), rgb(169, 184, 48).
Aa
Black text reads best on this color (9.58:1).
About this color
#A9B830 is a medium-light, vivid yellow. In OKLCH its lightness is 75%, its chroma 0.154 and its hue 116°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Mustard Green (#A8B504), ΔE 0.015 away. Black text reads best on it, at 9.58:1.
| Hue family | Yellows |
| Lightness | medium-light (75%) |
| Chroma | vivid (0.154) |
| Temperature | in between |
| Nearest name | Mustard Green (#A8B504) |
| Black text | 9.58:1 |
| White text | 2.19:1 |
Values
| HEX | #A9B830 |
| RGB | rgb(169, 184, 48) |
| HSL | hsl(67, 59%, 45%) |
| OKLCH | oklch(74.7% 0.154 115.8) |
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 #A9B830 | 2.19:1 | Fails | Lc -47.7 | Large or bold text, headings |
| Black text on #A9B830 | 9.58:1 | AAA | Lc 61.0 | Content text, not long reading |
| #A9B830 text on white | 2.19:1 | Fails | Lc 43.0 | Non-text elements, placeholder text |
| #A9B830 text on black | 9.58:1 | AAA | Lc -59.2 | 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
#F5F7ED
oklch(97.2% 0.013 115.8)
-
Step 100
100
#E9EDD8
oklch(93.7% 0.028 115.7)
-
Step 200
200
#D7DEB6
oklch(88.5% 0.054 115.6)
-
Step 300
300
#BDC980
oklch(81% 0.096 116.2)
-
Step 400
400 (this color)
#A9B830
oklch(74.7% 0.154 115.8)
-
Step 500
500
#869300
oklch(63.1% 0.144 115.9)
-
Step 600
600
#707B00
oklch(55.5% 0.127 115.8)
-
Step 700
700
#5E6800
oklch(49.2% 0.113 116.2)
-
Step 800
800
#4D5500
oklch(42.8% 0.098 115.9)
-
Step 900
900
#404700
oklch(37.8% 0.086 116)
-
Step 950
950
#252A00
oklch(27.1% 0.062 116.5)
#A9B830 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) | #C5AE13 | 0.044 |
| Deuteranopia (no green cones) | #C4B03C | 0.046 |
| Tritanopia (no blue cones) | #B4AD9E | 0.135 |
| Achromatopsia (no color) | #AFAFAF | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A9B830
#A9B830
oklch(74.7% 0.154 115.8)
- #B598FF
#B598FF
oklch(74.7% 0.147 295.6)
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 #A9B830, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mustard Green #A8B504 ΔE 0.015
- Pea #A4BF20 ΔE 0.023
- Bright Olive #9CBB04 ΔE 0.028
- Light Olive Green #A4BE5C ΔE 0.033
- Olive Yellow #C2B709 ΔE 0.035
- Muddy Yellow #BFAC05 ΔE 0.040
- Avocado #90B134 ΔE 0.040
- Icky Green #8FAE22 ΔE 0.047
Use #A9B830 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.