#337D18
Closest named color: Tree Green (#2A7E19). oklch(52.3% 0.151 139.1), rgb(51, 125, 24).
Aa
White text reads best on this color (5.13:1).
About this color
#337D18 is a medium-dark, vivid green. In OKLCH its lightness is 52%, its chroma 0.151 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 0.006 away. White text reads best on it, at 5.13:1.
| Hue family | Greens |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.151) |
| Temperature | in between |
| Nearest name | Tree Green (#2A7E19) |
| Black text | 4.08:1 |
| White text | 5.13:1 |
Values
| HEX | #337D18 |
| RGB | rgb(51, 125, 24) |
| HSL | hsl(104, 68%, 29%) |
| OKLCH | oklch(52.3% 0.151 139.1) |
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 #337D18 | 5.13:1 | AA | Lc -80.4 | Fine for body text |
| Black text on #337D18 | 4.08:1 | AA large text | Lc 29.0 | Dividers and decoration only |
| #337D18 text on white | 5.13:1 | AA | Lc 75.1 | Fine for body text |
| #337D18 text on black | 4.08:1 | AA large text | Lc -26.7 | 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
#F2F7F1
oklch(97.1% 0.01 140.5)
-
Step 100
100
#E3EEE0
oklch(93.7% 0.022 139)
-
Step 200
200
#CCE0C7
oklch(88.5% 0.04 139.4)
-
Step 300
300
#A9CD9F
oklch(81% 0.074 138.9)
-
Step 400
400
#7AB26A
oklch(70.7% 0.117 138.9)
-
Step 500
500
#559E3F
oklch(63% 0.15 139)
-
Step 600
600
#378819
oklch(55.5% 0.162 139.1)
-
Step 700
700 (this color)
#337D18
oklch(52.3% 0.151 139.1)
-
Step 800
800
#245E0E
oklch(42.7% 0.125 139)
-
Step 900
900
#234D15
oklch(37.6% 0.097 138.9)
-
Step 950
950
#152D0E
oklch(26.9% 0.061 139.1)
#337D18 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) | #817100 | 0.100 |
| Deuteranopia (no green cones) | #786B24 | 0.101 |
| Tritanopia (no blue cones) | #2B796A | 0.102 |
| Achromatopsia (no color) | #6D6D6D | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #337D18
#337D18
oklch(52.3% 0.151 139.1)
- #8E47A0
#8E47A0
oklch(52.3% 0.152 319.2)
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 #337D18, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tree Green #2A7E19 ΔE 0.006
- Dark Grass Green #388004 ΔE 0.014
- Green #008000 ΔE 0.028
- Jungle Green #048243 ΔE 0.038
- Forest Green #228B22 ΔE 0.041
- Emerald Green #028F1E ΔE 0.054
- Olive Green #677A04 ΔE 0.056
- Kelley Green #009337 ΔE 0.063
Use #337D18 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.