#55AA61
Closest named color: Algae (#54AC68). oklch(66.6% 0.135 146.9), rgb(85, 170, 97).
Aa
Black text reads best on this color (7.30:1).
About this color
#55AA61 is a medium-light, moderately saturated green. In OKLCH its lightness is 67%, its chroma 0.135 and its hue 147°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Algae (#54AC68), ΔE 0.009 away. Black text reads best on it, at 7.30:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.135) |
| Temperature | in between |
| Nearest name | Algae (#54AC68) |
| Black text | 7.30:1 |
| White text | 2.87:1 |
Values
| HEX | #55AA61 |
| RGB | rgb(85, 170, 97) |
| HSL | hsl(128, 33%, 50%) |
| OKLCH | oklch(66.6% 0.135 146.9) |
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 #55AA61 | 2.87:1 | Fails | Lc -60.0 | Content text, not long reading |
| Black text on #55AA61 | 7.30:1 | AAA | Lc 49.3 | Large or bold text, headings |
| #55AA61 text on white | 2.87:1 | Fails | Lc 54.7 | Large or bold text, headings |
| #55AA61 text on black | 7.30:1 | AAA | Lc -47.1 | 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 500.
-
Step 50
50
#F2F7F2
oklch(97.1% 0.008 145.5)
-
Step 100
100
#E2EEE3
oklch(93.7% 0.019 147.8)
-
Step 200
200
#CAE0CB
oklch(88.5% 0.037 146.5)
-
Step 300
300
#A5CDA8
oklch(80.9% 0.067 146.9)
-
Step 400
400
#73B379
oklch(70.8% 0.107 146.6)
-
Step 500
500 (this color)
#55AA61
oklch(66.6% 0.135 146.9)
-
Step 600
600
#25893B
oklch(55.6% 0.146 147)
-
Step 700
700
#15742D
oklch(49% 0.136 147)
-
Step 800
800
#175F26
oklch(42.8% 0.113 146.7)
-
Step 900
900
#1B4E24
oklch(37.8% 0.088 147)
-
Step 950
950
#112E15
oklch(27.1% 0.057 146.6)
#55AA61 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) | #AC9D5C | 0.107 |
| Deuteranopia (no green cones) | #A09566 | 0.106 |
| Tritanopia (no blue cones) | #46A798 | 0.079 |
| Achromatopsia (no color) | #989898 | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55AA61
#55AA61
oklch(66.6% 0.135 146.9)
- #BF75BF
#BF75BF
oklch(66.7% 0.134 326.9)
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 #55AA61, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Algae #54AC68 ΔE 0.009
- Dark Pastel Green #56AE57 ΔE 0.019
- Fern #63A950 ΔE 0.020
- Seaweed Green #35AD6B ΔE 0.021
- Off Green #6BA353 ΔE 0.026
- Jade Green #2BAF6A ΔE 0.026
- Dark Seafoam Green #3EAF76 ΔE 0.027
- Medium Sea Green #3CB371 ΔE 0.028
Use #55AA61 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.