#37BE45
Closest named color: Shamrock Green (#02C14D). oklch(70.5% 0.198 144.6), rgb(55, 190, 69).
Aa
Black text reads best on this color (8.61:1).
About this color
#37BE45 is a medium-light, vivid green. In OKLCH its lightness is 70%, its chroma 0.198 and its hue 145°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Shamrock Green (#02C14D), ΔE 0.014 away. Black text reads best on it, at 8.61:1.
| Hue family | Greens |
| Lightness | medium-light (70%) |
| Chroma | vivid (0.198) |
| Temperature | in between |
| Nearest name | Shamrock Green (#02C14D) |
| Black text | 8.61:1 |
| White text | 2.43:1 |
Values
| HEX | #37BE45 |
| RGB | rgb(55, 190, 69) |
| HSL | hsl(126, 55%, 48%) |
| OKLCH | oklch(70.5% 0.198 144.6) |
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 #37BE45 | 2.43:1 | Fails | Lc -52.5 | Large or bold text, headings |
| Black text on #37BE45 | 8.61:1 | AAA | Lc 56.5 | Large or bold text, headings |
| #37BE45 text on white | 2.43:1 | Fails | Lc 47.5 | Large or bold text, headings |
| #37BE45 text on black | 8.61:1 | AAA | Lc -54.5 | 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
#EFF9EF
oklch(97.2% 0.017 145.4)
-
Step 100
100
#DCF1DB
oklch(93.7% 0.037 144)
-
Step 200
200
#BEE6BD
oklch(88.6% 0.07 144.3)
-
Step 300
300
#8DD68D
oklch(81% 0.125 144.3)
-
Step 400
400 (this color)
#37BE45
oklch(70.5% 0.198 144.6)
-
Step 500
500
#00A628
oklch(63% 0.201 144.6)
-
Step 600
600
#008C20
oklch(55.6% 0.177 144.6)
-
Step 700
700
#007619
oklch(49.1% 0.157 144.5)
-
Step 800
800
#006113
oklch(42.8% 0.136 144.5)
-
Step 900
900
#00510E
oklch(37.8% 0.121 144.5)
-
Step 950
950
#003005
oklch(26.9% 0.086 144.4)
#37BE45 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) | #C1AC37 | 0.147 |
| Deuteranopia (no green cones) | #B2A250 | 0.147 |
| Tritanopia (no blue cones) | #00B9A5 | 0.123 |
| Achromatopsia (no color) | #A6A6A6 | 0.200 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37BE45
#37BE45
oklch(70.5% 0.198 144.6)
- #DB6DE3
#DB6DE3
oklch(70.5% 0.198 324.8)
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 #37BE45, closest first.
No curated palette has a color within ΔE 0.04 of #37BE45.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Shamrock Green #02C14D ΔE 0.014
- Leafy Green #51B73B ΔE 0.021
- Frog Green #58BC08 ΔE 0.031
- Shamrock #01B44C ΔE 0.037
- Cool Green #33B864 ΔE 0.041
- Algae Green #21C36F ΔE 0.041
- Dark Mint Green #20C073 ΔE 0.047
- Lime Green #32CD32 ΔE 0.048
Use #37BE45 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.