#5AAA57
Closest named color: Fern (#63A950). oklch(66.7% 0.142 143.1), rgb(90, 170, 87).
Aa
Black text reads best on this color (7.32:1).
About this color
#5AAA57 is a medium-light, vivid green. In OKLCH its lightness is 67%, its chroma 0.142 and its hue 143°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Fern (#63A950), ΔE 0.009 away. Black text reads best on it, at 7.32:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.142) |
| Temperature | in between |
| Nearest name | Fern (#63A950) |
| Black text | 7.32:1 |
| White text | 2.86:1 |
Values
| HEX | #5AAA57 |
| RGB | rgb(90, 170, 87) |
| HSL | hsl(118, 33%, 50%) |
| OKLCH | oklch(66.7% 0.142 143.1) |
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 #5AAA57 | 2.86:1 | Fails | Lc -59.9 | Large or bold text, headings |
| Black text on #5AAA57 | 7.32:1 | AAA | Lc 49.4 | Large or bold text, headings |
| #5AAA57 text on white | 2.86:1 | Fails | Lc 54.7 | Large or bold text, headings |
| #5AAA57 text on black | 7.32:1 | AAA | Lc -47.2 | 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
#F2F7F1
oklch(97.1% 0.01 140.5)
-
Step 100
100
#E2EEE1
oklch(93.7% 0.021 143.2)
-
Step 200
200
#CBE0C9
oklch(88.5% 0.038 142.8)
-
Step 300
300
#A7CDA4
oklch(81% 0.07 143)
-
Step 400
400
#76B272
oklch(70.6% 0.11 142.9)
-
Step 500
500 (this color)
#5AAA57
oklch(66.7% 0.142 143.1)
-
Step 600
600
#2E892D
oklch(55.6% 0.155 143)
-
Step 700
700
#1F7420
oklch(49.1% 0.143 143.1)
-
Step 800
800
#1D5E1C
oklch(42.6% 0.118 142.9)
-
Step 900
900
#1F4E1D
oklch(37.9% 0.093 142.8)
-
Step 950
950
#132E12
oklch(27.2% 0.06 143)
#5AAA57 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) | #AD9D50 | 0.104 |
| Deuteranopia (no green cones) | #A2965D | 0.103 |
| Tritanopia (no blue cones) | #50A697 | 0.090 |
| Achromatopsia (no color) | #989898 | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5AAA57
#5AAA57
oklch(66.7% 0.142 143.1)
- #BD74C6
#BD74C6
oklch(66.6% 0.141 323)
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 #5AAA57, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Fern #63A950 ΔE 0.009
- Dark Pastel Green #56AE57 ΔE 0.012
- Algae #54AC68 ΔE 0.019
- Mid Green #50A747 ΔE 0.022
- Off Green #6BA353 ΔE 0.023
- Muted Green #5FA052 ΔE 0.028
- Seaweed Green #35AD6B ΔE 0.029
- Boring Green #63B365 ΔE 0.030
Use #5AAA57 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.