#A3B00A
Closest named color: Mustard Green (#A8B504). oklch(72.2% 0.162 115), rgb(163, 176, 10).
Aa
Black text reads best on this color (8.77:1).
About this color
#A3B00A is a medium-light, vivid yellow. In OKLCH its lightness is 72%, its chroma 0.162 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 0.016 away. Black text reads best on it, at 8.77:1.
| Hue family | Yellows |
| Lightness | medium-light (72%) |
| Chroma | vivid (0.162) |
| Temperature | in between |
| Nearest name | Mustard Green (#A8B504) |
| Black text | 8.77:1 |
| White text | 2.39:1 |
Values
| HEX | #A3B00A |
| RGB | rgb(163, 176, 10) |
| HSL | hsl(65, 89%, 36%) |
| OKLCH | oklch(72.2% 0.162 115) |
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 #A3B00A | 2.39:1 | Fails | Lc -51.9 | Large or bold text, headings |
| Black text on #A3B00A | 8.77:1 | AAA | Lc 57.0 | Large or bold text, headings |
| #A3B00A text on white | 2.39:1 | Fails | Lc 47.0 | Large or bold text, headings |
| #A3B00A text on black | 8.77:1 | AAA | Lc -55.1 | 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
#E9EDD7
oklch(93.7% 0.029 115.3)
-
Step 200
200
#D7DEB4
oklch(88.4% 0.056 115.2)
-
Step 300
300
#BEC97B
oklch(81% 0.102 115.3)
-
Step 400
400 (this color)
#A3B00A
oklch(72.2% 0.162 115)
-
Step 500
500
#879300
oklch(63.2% 0.144 115.4)
-
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)
#A3B00A 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) | #BEA600 | 0.045 |
| Deuteranopia (no green cones) | #BDA924 | 0.045 |
| Tritanopia (no blue cones) | #AFA596 | 0.143 |
| Achromatopsia (no color) | #A7A7A7 | 0.162 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3B00A
#A3B00A
oklch(72.2% 0.162 115)
- #AE8EFF
#AE8EFF
oklch(72.3% 0.162 295.1)
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 #A3B00A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mustard Green #A8B504 ΔE 0.016
- Avocado #90B134 ΔE 0.026
- Icky Green #8FAE22 ΔE 0.028
- Bright Olive #9CBB04 ΔE 0.031
- Pea Green #8EAB12 ΔE 0.033
- Pea Soup Green #94A617 ΔE 0.036
- Pea #A4BF20 ΔE 0.040
- Muddy Yellow #BFAC05 ΔE 0.041
Use #A3B00A 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.