#37A64B
Closest named color: Mid Green (#50A747). oklch(64.2% 0.164 146.5), rgb(55, 166, 75).
Aa
Black text reads best on this color (6.71:1).
About this color
#37A64B is a medium-light, vivid green. In OKLCH its lightness is 64%, its chroma 0.164 and its hue 146°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Mid Green (#50A747), ΔE 0.018 away. Black text reads best on it, at 6.71:1.
| Hue family | Greens |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.164) |
| Temperature | in between |
| Nearest name | Mid Green (#50A747) |
| Black text | 6.71:1 |
| White text | 3.12:1 |
Values
| HEX | #37A64B |
| RGB | rgb(55, 166, 75) |
| HSL | hsl(131, 50%, 43%) |
| OKLCH | oklch(64.2% 0.164 146.5) |
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 #37A64B | 3.12:1 | AA large text | Lc -63.3 | Content text, not long reading |
| Black text on #37A64B | 6.71:1 | AA | Lc 46.2 | Large or bold text, headings |
| #37A64B text on white | 3.12:1 | AA large text | Lc 57.9 | Large or bold text, headings |
| #37A64B text on black | 6.71:1 | AA | Lc -43.9 | 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
#F1F7F1
oklch(97% 0.01 145.5)
-
Step 100
100
#E0EEE1
oklch(93.5% 0.023 147.4)
-
Step 200
200
#C7E2C8
oklch(88.6% 0.045 146.2)
-
Step 300
300
#9FCFA2
oklch(80.9% 0.08 146.4)
-
Step 400
400
#67B66F
oklch(70.7% 0.129 146.3)
-
Step 500
500 (this color)
#37A64B
oklch(64.2% 0.164 146.5)
-
Step 600
600
#008C2E
oklch(55.7% 0.168 146.5)
-
Step 700
700
#007525
oklch(49% 0.148 146.5)
-
Step 800
800
#00601D
oklch(42.6% 0.128 146.5)
-
Step 900
900
#0A501B
oklch(37.8% 0.107 146.6)
-
Step 950
950
#0A2F11
oklch(27% 0.068 146.8)
#37A64B 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) | #A89743 | 0.127 |
| Deuteranopia (no green cones) | #9B8E52 | 0.126 |
| Tritanopia (no blue cones) | #12A291 | 0.097 |
| Achromatopsia (no color) | #929292 | 0.165 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37A64B
#37A64B
oklch(64.2% 0.164 146.5)
- #BF64C0
#BF64C0
oklch(64.2% 0.164 326.9)
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 #37A64B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Green #50A747 ΔE 0.018
- Medium Green #39AD48 ΔE 0.022
- Dark Pastel Green #56AE57 ΔE 0.037
- Jade Green #2BAF6A ΔE 0.037
- Muted Green #5FA052 ΔE 0.038
- Seaweed Green #35AD6B ΔE 0.038
- Fern #63A950 ΔE 0.039
- Kelly Green #02AB2E ΔE 0.039
Use #37A64B 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.