#55B337
Closest named color: Leafy Green (#51B73B). oklch(68.4% 0.183 139.2), rgb(85, 179, 55).
Aa
Black text reads best on this color (7.88:1).
About this color
#55B337 is a medium-light, vivid green. In OKLCH its lightness is 68%, its chroma 0.183 and its hue 139°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Leafy Green (#51B73B), ΔE 0.011 away. Black text reads best on it, at 7.88:1.
| Hue family | Greens |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.183) |
| Temperature | in between |
| Nearest name | Leafy Green (#51B73B) |
| Black text | 7.88:1 |
| White text | 2.66:1 |
Values
| HEX | #55B337 |
| RGB | rgb(85, 179, 55) |
| HSL | hsl(105, 53%, 46%) |
| OKLCH | oklch(68.4% 0.183 139.2) |
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 #55B337 | 2.66:1 | Fails | Lc -56.6 | Large or bold text, headings |
| Black text on #55B337 | 7.88:1 | AAA | Lc 52.6 | Large or bold text, headings |
| #55B337 text on white | 2.66:1 | Fails | Lc 51.4 | Large or bold text, headings |
| #55B337 text on black | 7.88:1 | AAA | Lc -50.4 | 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
#F0F8EE
oklch(97% 0.016 139.4)
-
Step 100
100
#DFF0DB
oklch(93.7% 0.033 139.7)
-
Step 200
200
#C4E4BC
oklch(88.5% 0.064 139.4)
-
Step 300
300
#9AD38B
oklch(81% 0.115 139.2)
-
Step 400
400 (this color)
#55B337
oklch(68.4% 0.183 139.2)
-
Step 500
500
#39A400
oklch(63.2% 0.2 139.2)
-
Step 600
600
#2F8A00
oklch(55.7% 0.176 139.1)
-
Step 700
700
#267400
oklch(49.1% 0.155 139.2)
-
Step 800
800
#1E5F00
oklch(42.7% 0.135 139.1)
-
Step 900
900
#174F00
oklch(37.6% 0.119 139.2)
-
Step 950
950
#0B2F00
oklch(26.9% 0.085 139)
#55B337 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) | #B8A325 | 0.121 |
| Deuteranopia (no green cones) | #AC9C42 | 0.121 |
| Tritanopia (no blue cones) | #4CAD9A | 0.125 |
| Achromatopsia (no color) | #9F9F9F | 0.184 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55B337
#55B337
oklch(68.4% 0.183 139.2)
- #C96FE0
#C96FE0
oklch(68.5% 0.183 319.2)
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 #55B337, closest first.
No curated palette has a color within ΔE 0.04 of #55B337.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Leafy Green #51B73B ΔE 0.011
- Grass #5CAC2D ΔE 0.019
- Leaf Green #5CA904 ΔE 0.030
- Medium Green #39AD48 ΔE 0.032
- Leaf #71AA34 ΔE 0.034
- Shamrock #01B44C ΔE 0.034
- Frog Green #58BC08 ΔE 0.037
- Dark Pastel Green #56AE57 ΔE 0.037
Use #55B337 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.