#37A10E
Closest named color: Grassy Green (#419C03). oklch(62.3% 0.195 139.7), rgb(55, 161, 14).
Aa
Black text reads best on this color (6.26:1).
About this color
#37A10E is a medium-light, vivid green. In OKLCH its lightness is 62%, its chroma 0.195 and its hue 140°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grassy Green (#419C03), ΔE 0.014 away. Black text reads best on it, at 6.26:1.
| Hue family | Greens |
| Lightness | medium-light (62%) |
| Chroma | vivid (0.195) |
| Temperature | in between |
| Nearest name | Grassy Green (#419C03) |
| Black text | 6.26:1 |
| White text | 3.35:1 |
Values
| HEX | #37A10E |
| RGB | rgb(55, 161, 14) |
| HSL | hsl(103, 84%, 34%) |
| OKLCH | oklch(62.3% 0.195 139.7) |
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 #37A10E | 3.35:1 | AA large text | Lc -65.9 | Content text, not long reading |
| Black text on #37A10E | 6.26:1 | AA | Lc 43.6 | Non-text elements, placeholder text |
| #37A10E text on white | 3.35:1 | AA large text | Lc 60.4 | Content text, not long reading |
| #37A10E text on black | 6.26:1 | AA | Lc -41.3 | 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
#F1F8F0
oklch(97.2% 0.013 141.8)
-
Step 100
100
#E1EFDD
oklch(93.7% 0.028 138.7)
-
Step 200
200
#C8E2C1
oklch(88.5% 0.052 139.1)
-
Step 300
300
#A0D095
oklch(80.9% 0.095 139.8)
-
Step 400
400
#6AB757
oklch(70.7% 0.152 139.7)
-
Step 500
500 (this color)
#37A10E
oklch(62.3% 0.195 139.7)
-
Step 600
600
#2B8A00
oklch(55.6% 0.178 139.6)
-
Step 700
700
#227400
oklch(49% 0.157 139.8)
-
Step 800
800
#1B5F00
oklch(42.6% 0.136 139.6)
-
Step 900
900
#155000
oklch(37.8% 0.121 139.7)
-
Step 950
950
#0C2F03
oklch(26.9% 0.081 139.7)
#37A10E 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) | #A69100 | 0.132 |
| Deuteranopia (no green cones) | #998926 | 0.129 |
| Tritanopia (no blue cones) | #269B88 | 0.132 |
| Achromatopsia (no color) | #8C8C8C | 0.195 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37A10E
#37A10E
oklch(62.3% 0.195 139.7)
- #B857CF
#B857CF
oklch(62.3% 0.195 319.6)
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 #37A10E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grassy Green #419C03 ΔE 0.014
- Grass Green #3F9B0B ΔE 0.017
- Kelly Green #02AB2E ΔE 0.029
- Leaf Green #5CA904 ΔE 0.040
- True Green #089404 ΔE 0.046
- Medium Green #39AD48 ΔE 0.046
- Irish Green #019529 ΔE 0.047
- Mid Green #50A747 ΔE 0.048
Use #37A10E 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.