#A1B550
Closest named color: Light Olive Green (#A4BE5C). oklch(73.7% 0.129 119), rgb(161, 181, 80).
Aa
Black text reads best on this color (9.24:1).
About this color
#A1B550 is a medium-light, moderately saturated yellow. In OKLCH its lightness is 74%, its chroma 0.129 and its hue 119°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Olive Green (#A4BE5C), ΔE 0.025 away. Black text reads best on it, at 9.24:1.
| Hue family | Yellows |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.129) |
| Temperature | in between |
| Nearest name | Light Olive Green (#A4BE5C) |
| Black text | 9.24:1 |
| White text | 2.27:1 |
Values
| HEX | #A1B550 |
| RGB | rgb(161, 181, 80) |
| HSL | hsl(72, 41%, 51%) |
| OKLCH | oklch(73.7% 0.129 119) |
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 #A1B550 | 2.27:1 | Fails | Lc -49.6 | Large or bold text, headings |
| Black text on #A1B550 | 9.24:1 | AAA | Lc 59.2 | Large or bold text, headings |
| #A1B550 text on white | 2.27:1 | Fails | Lc 44.7 | Non-text elements, placeholder text |
| #A1B550 text on black | 9.24:1 | AAA | Lc -57.4 | 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
#F4F7EF
oklch(97.2% 0.011 123.5)
-
Step 100
100
#E8ECDB
oklch(93.5% 0.023 117.6)
-
Step 200
200
#D5DEBD
oklch(88.5% 0.045 119.7)
-
Step 300
300
#BAC98D
oklch(81% 0.082 119.7)
-
Step 400
400 (this color)
#A1B550
oklch(73.7% 0.129 119)
-
Step 500
500
#809500
oklch(63.1% 0.149 119.2)
-
Step 600
600
#6C7D00
oklch(55.6% 0.13 118.8)
-
Step 700
700
#5A6900
oklch(49.1% 0.115 119)
-
Step 800
800
#495600
oklch(42.7% 0.101 119.3)
-
Step 900
900
#3D4800
oklch(37.8% 0.089 119.1)
-
Step 950
950
#232A00
oklch(26.9% 0.063 118.9)
#A1B550 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) | #C0AC46 | 0.046 |
| Deuteranopia (no green cones) | #BDAC56 | 0.047 |
| Tritanopia (no blue cones) | #A9AC9F | 0.110 |
| Achromatopsia (no color) | #ACACAC | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A1B550
#A1B550
oklch(73.7% 0.129 119)
- #B597F0
#B597F0
oklch(73.7% 0.129 298.7)
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 #A1B550, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Olive Green #A4BE5C ΔE 0.025
- Avocado #90B134 ΔE 0.036
- Light Olive #ACBF69 ΔE 0.038
- Mustard Green #A8B504 ΔE 0.039
- Tan Green #A9BE70 ΔE 0.039
- Icky Green #8FAE22 ΔE 0.046
- Pea #A4BF20 ΔE 0.047
- Lichen #8FB67B ΔE 0.048
Use #A1B550 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.