#337021
Closest named color: Tree Green (#2A7E19). oklch(48.7% 0.129 139.4), rgb(51, 112, 33).
Aa
White text reads best on this color (6.03:1).
About this color
#337021 is a medium-dark, moderately saturated green. In OKLCH its lightness is 49%, its chroma 0.129 and its hue 139°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Tree Green (#2A7E19), ΔE 0.045 away. White text reads best on it, at 6.03:1.
| Hue family | Greens |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.129) |
| Temperature | in between |
| Nearest name | Tree Green (#2A7E19) |
| Black text | 3.48:1 |
| White text | 6.03:1 |
Values
| HEX | #337021 |
| RGB | rgb(51, 112, 33) |
| HSL | hsl(106, 54%, 28%) |
| OKLCH | oklch(48.7% 0.129 139.4) |
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 #337021 | 6.03:1 | AA | Lc -85.1 | Fine for body text |
| Black text on #337021 | 3.48:1 | AA large text | Lc 24.2 | Dividers and decoration only |
| #337021 text on white | 6.03:1 | AA | Lc 79.9 | Fine for body text |
| #337021 text on black | 3.48:1 | AA large text | Lc -22.0 | Dividers and decoration only |
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 700.
-
Step 50
50
#F3F7F2
oklch(97.2% 0.008 139.4)
-
Step 100
100
#E4EDE2
oklch(93.6% 0.017 140)
-
Step 200
200
#CEDFC9
oklch(88.5% 0.035 138.6)
-
Step 300
300
#ACCBA5
oklch(80.9% 0.062 139.9)
-
Step 400
400
#80B073
oklch(70.7% 0.1 139.1)
-
Step 500
500
#5E9C4E
oklch(63.2% 0.128 139.5)
-
Step 600
600
#438630
oklch(55.6% 0.139 139.4)
-
Step 700
700 (this color)
#337021
oklch(48.7% 0.129 139.4)
-
Step 800
800
#2C5C1E
oklch(42.6% 0.106 139.3)
-
Step 900
900
#284C1F
oklch(37.7% 0.083 139.6)
-
Step 950
950
#182D13
oklch(27.2% 0.053 139.7)
#337021 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) | #736616 | 0.085 |
| Deuteranopia (no green cones) | #6B6128 | 0.085 |
| Tritanopia (no blue cones) | #2D6C60 | 0.088 |
| Achromatopsia (no color) | #636363 | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #337021
#337021
oklch(48.7% 0.129 139.4)
- #7E448D
#7E448D
oklch(48.7% 0.129 319.1)
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 #337021, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tree Green #2A7E19 ΔE 0.045
- Dark Olive Green #556B2F ΔE 0.047
- Camouflage Green #4B6113 ΔE 0.048
- Camo Green #526525 ΔE 0.048
- Dark Green #006400 ΔE 0.055
- Jungle Green #048243 ΔE 0.055
- Dark Grass Green #388004 ΔE 0.055
- Mud Green #606602 ΔE 0.056
Use #337021 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.