#A3B42A
Closest named color: Mustard Green (#A8B504). oklch(73.3% 0.155 116.7), rgb(163, 180, 42).
Aa
Black text reads best on this color (9.11:1).
About this color
#A3B42A is a medium-light, vivid yellow. In OKLCH its lightness is 73%, its chroma 0.155 and its hue 117°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Mustard Green (#A8B504), ΔE 0.013 away. Black text reads best on it, at 9.11:1.
| Hue family | Yellows |
| Lightness | medium-light (73%) |
| Chroma | vivid (0.155) |
| Temperature | in between |
| Nearest name | Mustard Green (#A8B504) |
| Black text | 9.11:1 |
| White text | 2.30:1 |
Values
| HEX | #A3B42A |
| RGB | rgb(163, 180, 42) |
| HSL | hsl(67, 62%, 44%) |
| OKLCH | oklch(73.3% 0.155 116.7) |
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 #A3B42A | 2.30:1 | Fails | Lc -50.1 | Large or bold text, headings |
| Black text on #A3B42A | 9.11:1 | AAA | Lc 58.7 | Large or bold text, headings |
| #A3B42A text on white | 2.30:1 | Fails | Lc 45.3 | Large or bold text, headings |
| #A3B42A text on black | 9.11:1 | AAA | Lc -56.8 | 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
#F5F7ED
oklch(97.2% 0.013 115.8)
-
Step 100
100
#E8EDD8
oklch(93.7% 0.028 117.8)
-
Step 200
200
#D6DEB6
oklch(88.4% 0.054 116.7)
-
Step 300
300
#BCC980
oklch(80.9% 0.097 116.8)
-
Step 400
400 (this color)
#A3B42A
oklch(73.3% 0.155 116.7)
-
Step 500
500
#859400
oklch(63.2% 0.145 116.7)
-
Step 600
600
#6F7C00
oklch(55.6% 0.128 116.8)
-
Step 700
700
#5D6800
oklch(49.1% 0.113 116.8)
-
Step 800
800
#4C5500
oklch(42.7% 0.098 116.6)
-
Step 900
900
#3F4700
oklch(37.7% 0.087 116.8)
-
Step 950
950
#252A00
oklch(27.1% 0.062 116.5)
#A3B42A 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) | #C1AA03 | 0.046 |
| Deuteranopia (no green cones) | #BFAC37 | 0.048 |
| Tritanopia (no blue cones) | #AEAA9A | 0.134 |
| Achromatopsia (no color) | #ABABAB | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3B42A
#A3B42A
oklch(73.3% 0.155 116.7)
- #B391FE
#B391FE
oklch(73.2% 0.156 296.7)
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 #A3B42A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mustard Green #A8B504 ΔE 0.013
- Bright Olive #9CBB04 ΔE 0.027
- Avocado #90B134 ΔE 0.027
- Pea #A4BF20 ΔE 0.032
- Icky Green #8FAE22 ΔE 0.033
- Pea Green #8EAB12 ΔE 0.041
- Light Olive Green #A4BE5C ΔE 0.041
- Muddy Yellow #BFAC05 ΔE 0.041
Use #A3B42A 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.