#55AC59
Closest named color: Dark Pastel Green (#56AE57). oklch(67% 0.146 144.6), rgb(85, 172, 89).
Aa
Black text reads best on this color (7.43:1).
About this color
#55AC59 is a medium-light, vivid green. In OKLCH its lightness is 67%, its chroma 0.146 and its hue 145°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Pastel Green (#56AE57), ΔE 0.007 away. Black text reads best on it, at 7.43:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.146) |
| Temperature | in between |
| Nearest name | Dark Pastel Green (#56AE57) |
| Black text | 7.43:1 |
| White text | 2.82:1 |
Values
| HEX | #55AC59 |
| RGB | rgb(85, 172, 89) |
| HSL | hsl(123, 34%, 50%) |
| OKLCH | oklch(67% 0.146 144.6) |
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 #55AC59 | 2.82:1 | Fails | Lc -59.3 | Large or bold text, headings |
| Black text on #55AC59 | 7.43:1 | AAA | Lc 50.0 | Large or bold text, headings |
| #55AC59 text on white | 2.82:1 | Fails | Lc 54.0 | Large or bold text, headings |
| #55AC59 text on black | 7.43:1 | AAA | Lc -47.8 | 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
#F1F8F0
oklch(97.2% 0.013 141.8)
-
Step 100
100
#E0EFDF
oklch(93.7% 0.027 143.6)
-
Step 200
200
#C5E2C5
oklch(88.4% 0.05 145.1)
-
Step 300
300
#9CD19C
oklch(81% 0.092 144.7)
-
Step 400
400 (this color)
#55AC59
oklch(67% 0.146 144.6)
-
Step 500
500
#24A535
oklch(63.2% 0.186 144.6)
-
Step 600
600
#008C21
oklch(55.6% 0.177 144.7)
-
Step 700
700
#00761A
oklch(49.2% 0.156 144.6)
-
Step 800
800
#006114
oklch(42.8% 0.136 144.7)
-
Step 900
900
#00510F
oklch(37.8% 0.12 144.7)
-
Step 950
950
#06300B
oklch(27.1% 0.077 144.9)
#55AC59 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) | #AF9F52 | 0.110 |
| Deuteranopia (no green cones) | #A3975F | 0.109 |
| Tritanopia (no blue cones) | #48A898 | 0.089 |
| Achromatopsia (no color) | #9A9A9A | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55AC59
#55AC59
oklch(67% 0.146 144.6)
- #C173C7
#C173C7
oklch(67% 0.147 324.5)
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 #55AC59, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Pastel Green #56AE57 ΔE 0.007
- Fern #63A950 ΔE 0.014
- Algae #54AC68 ΔE 0.018
- Mid Green #50A747 ΔE 0.023
- Seaweed Green #35AD6B ΔE 0.026
- Jade Green #2BAF6A ΔE 0.027
- Boring Green #63B365 ΔE 0.028
- Off Green #6BA353 ΔE 0.029
Use #55AC59 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.