#55A537
Closest named color: Mid Green (#50A747). oklch(64.8% 0.165 138.4), rgb(85, 165, 55).
Aa
Black text reads best on this color (6.82:1).
About this color
#55A537 is a medium-light, vivid green. In OKLCH its lightness is 65%, its chroma 0.165 and its hue 138°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Mid Green (#50A747), ΔE 0.013 away. Black text reads best on it, at 6.82:1.
| Hue family | Greens |
| Lightness | medium-light (65%) |
| Chroma | vivid (0.165) |
| Temperature | in between |
| Nearest name | Mid Green (#50A747) |
| Black text | 6.82:1 |
| White text | 3.07:1 |
Values
| HEX | #55A537 |
| RGB | rgb(85, 165, 55) |
| HSL | hsl(104, 50%, 43%) |
| OKLCH | oklch(64.8% 0.165 138.4) |
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 #55A537 | 3.07:1 | AA large text | Lc -62.8 | Content text, not long reading |
| Black text on #55A537 | 6.82:1 | AA | Lc 46.6 | Large or bold text, headings |
| #55A537 text on white | 3.07:1 | AA large text | Lc 57.4 | Large or bold text, headings |
| #55A537 text on black | 6.82:1 | AA | Lc -44.3 | Non-text elements, placeholder text |
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
#F2F7F0
oklch(97% 0.011 136.6)
-
Step 100
100
#E2EEDF
oklch(93.6% 0.024 139.4)
-
Step 200
200
#CBE1C4
oklch(88.6% 0.046 138.1)
-
Step 300
300
#A7CE9B
oklch(81% 0.081 138.4)
-
Step 400
400
#76B462
oklch(70.8% 0.13 138.4)
-
Step 500
500 (this color)
#55A537
oklch(64.8% 0.165 138.4)
-
Step 600
600
#348900
oklch(55.6% 0.173 138.4)
-
Step 700
700
#2A7300
oklch(49% 0.153 138.4)
-
Step 800
800
#215F00
oklch(42.8% 0.134 138.5)
-
Step 900
900
#1F4E0B
oklch(37.7% 0.108 138.5)
-
Step 950
950
#132E0A
oklch(27% 0.068 138.8)
#55A537 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) | #AA9729 | 0.108 |
| Deuteranopia (no green cones) | #9F9041 | 0.109 |
| Tritanopia (no blue cones) | #4F9F8E | 0.114 |
| Achromatopsia (no color) | #939393 | 0.166 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55A537
#55A537
oklch(64.8% 0.165 138.4)
- #B869CE
#B869CE
oklch(64.8% 0.166 318.6)
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 #55A537, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Green #50A747 ΔE 0.013
- Grass #5CAC2D ΔE 0.024
- Medium Green #39AD48 ΔE 0.026
- Leaf Green #5CA904 ΔE 0.029
- Fern #63A950 ΔE 0.031
- Leaf #71AA34 ΔE 0.033
- Dark Pastel Green #56AE57 ΔE 0.035
- Muted Green #5FA052 ΔE 0.037
Use #55A537 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.