#37B346
Closest named color: Shamrock (#01B44C). oklch(67.6% 0.184 145), rgb(55, 179, 70).
Aa
Black text reads best on this color (7.69:1).
About this color
#37B346 is a medium-light, vivid green. In OKLCH its lightness is 68%, its chroma 0.184 and its hue 145°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Shamrock (#01B44C), ΔE 0.014 away. Black text reads best on it, at 7.69:1.
| Hue family | Greens |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.184) |
| Temperature | in between |
| Nearest name | Shamrock (#01B44C) |
| Black text | 7.69:1 |
| White text | 2.72:1 |
Values
| HEX | #37B346 |
| RGB | rgb(55, 179, 70) |
| HSL | hsl(127, 53%, 46%) |
| OKLCH | oklch(67.6% 0.184 145) |
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 #37B346 | 2.72:1 | Fails | Lc -57.6 | Large or bold text, headings |
| Black text on #37B346 | 7.69:1 | AAA | Lc 51.7 | Large or bold text, headings |
| #37B346 text on white | 2.72:1 | Fails | Lc 52.3 | Large or bold text, headings |
| #37B346 text on black | 7.69:1 | AAA | Lc -49.5 | 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
#EFF8EF
oklch(97% 0.015 145.5)
-
Step 100
100
#DDF0DD
oklch(93.6% 0.032 145.3)
-
Step 200
200
#C0E5C0
oklch(88.5% 0.063 145)
-
Step 300
300
#90D592
oklch(81% 0.116 145.1)
-
Step 400
400 (this color)
#37B346
oklch(67.6% 0.184 145)
-
Step 500
500
#00A62D
oklch(63% 0.198 145.1)
-
Step 600
600
#008C24
oklch(55.6% 0.175 145)
-
Step 700
700
#00761D
oklch(49.2% 0.154 145)
-
Step 800
800
#006116
oklch(42.8% 0.135 145)
-
Step 900
900
#005111
oklch(37.8% 0.119 145.1)
-
Step 950
950
#003007
oklch(26.9% 0.084 145.2)
#37B346 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) | #B6A33A | 0.138 |
| Deuteranopia (no green cones) | #A7994F | 0.137 |
| Tritanopia (no blue cones) | #08AE9C | 0.114 |
| Achromatopsia (no color) | #9D9D9D | 0.186 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37B346
#37B346
oklch(67.6% 0.184 145)
- #CE68D4
#CE68D4
oklch(67.6% 0.185 325.3)
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 #37B346, closest first.
No curated palette has a color within ΔE 0.04 of #37B346.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Shamrock #01B44C ΔE 0.014
- Medium Green #39AD48 ΔE 0.018
- Leafy Green #51B73B ΔE 0.023
- Grass #5CAC2D ΔE 0.029
- Cool Green #33B864 ΔE 0.031
- Dark Pastel Green #56AE57 ΔE 0.035
- Kelly Green #02AB2E ΔE 0.036
- Mid Green #50A747 ΔE 0.037
Use #37B346 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.