#37A833
Closest named color: Kelly Green (#02AB2E). oklch(64.4% 0.185 142.6), rgb(55, 168, 51).
Aa
Black text reads best on this color (6.81:1).
About this color
#37A833 is a medium-light, vivid green. In OKLCH its lightness is 64%, its chroma 0.185 and its hue 143°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Kelly Green (#02AB2E), ΔE 0.019 away. Black text reads best on it, at 6.81:1.
| Hue family | Greens |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.185) |
| Temperature | in between |
| Nearest name | Kelly Green (#02AB2E) |
| Black text | 6.81:1 |
| White text | 3.08:1 |
Values
| HEX | #37A833 |
| RGB | rgb(55, 168, 51) |
| HSL | hsl(118, 53%, 43%) |
| OKLCH | oklch(64.4% 0.185 142.6) |
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 #37A833 | 3.08:1 | AA large text | Lc -62.7 | Content text, not long reading |
| Black text on #37A833 | 6.81:1 | AA | Lc 46.8 | Large or bold text, headings |
| #37A833 text on white | 3.08:1 | AA large text | Lc 57.3 | Large or bold text, headings |
| #37A833 text on black | 6.81:1 | AA | Lc -44.5 | 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
#E0EFDF
oklch(93.7% 0.027 143.6)
-
Step 200
200
#C7E2C4
oklch(88.5% 0.05 142.4)
-
Step 300
300
#9FD09A
oklch(80.9% 0.091 142.4)
-
Step 400
400
#66B761
oklch(70.7% 0.145 142.7)
-
Step 500
500 (this color)
#37A833
oklch(64.4% 0.185 142.6)
-
Step 600
600
#008C03
oklch(55.5% 0.188 142.6)
-
Step 700
700
#007602
oklch(49% 0.166 142.6)
-
Step 800
800
#006101
oklch(42.7% 0.145 142.6)
-
Step 900
900
#095008
oklch(37.6% 0.12 142.6)
-
Step 950
950
#0A2F09
oklch(26.9% 0.076 142.7)
#37A833 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) | #AC9822 | 0.132 |
| Deuteranopia (no green cones) | #9E8F3E | 0.132 |
| Tritanopia (no blue cones) | #1DA390 | 0.118 |
| Achromatopsia (no color) | #939393 | 0.186 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37A833
#37A833
oklch(64.4% 0.185 142.6)
- #C060CE
#C060CE
oklch(64.5% 0.184 322.4)
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 #37A833, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Kelly Green #02AB2E ΔE 0.019
- Medium Green #39AD48 ΔE 0.021
- Mid Green #50A747 ΔE 0.029
- Leaf Green #5CA904 ΔE 0.031
- Grass #5CAC2D ΔE 0.032
- Shamrock #01B44C ΔE 0.035
- Grassy Green #419C03 ΔE 0.035
- Grass Green #3F9B0B ΔE 0.038
Use #37A833 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.