#278311
Closest named color: Dark Grass Green (#388004). oklch(53.5% 0.166 140.7), rgb(39, 131, 17).
Aa
White text reads best on this color (4.83:1).
About this color
#278311 is a medium-dark, vivid green. In OKLCH its lightness is 54%, its chroma 0.166 and its hue 141°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Grass Green (#388004), ΔE 0.012 away. White text reads best on it, at 4.83:1.
| Hue family | Greens |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.166) |
| Temperature | in between |
| Nearest name | Dark Grass Green (#388004) |
| Black text | 4.34:1 |
| White text | 4.83:1 |
Values
| HEX | #278311 |
| RGB | rgb(39, 131, 17) |
| HSL | hsl(108, 77%, 29%) |
| OKLCH | oklch(53.5% 0.166 140.7) |
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 #278311 | 4.83:1 | AA | Lc -78.5 | Fine for body text |
| Black text on #278311 | 4.34:1 | AA large text | Lc 31.0 | Non-text elements, placeholder text |
| #278311 text on white | 4.83:1 | AA | Lc 73.1 | Content text, not long reading |
| #278311 text on black | 4.34:1 | AA large text | Lc -28.6 | 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 600.
-
Step 50
50
#F2F7F1
oklch(97.1% 0.01 140.5)
-
Step 100
100
#E2EEE0
oklch(93.6% 0.023 141.2)
-
Step 200
200
#CBE0C7
oklch(88.4% 0.041 140.7)
-
Step 300
300
#A7CDA0
oklch(80.9% 0.074 140.7)
-
Step 400
400
#76B36B
oklch(70.7% 0.119 140.7)
-
Step 500
500
#4F9F40
oklch(63% 0.153 140.6)
-
Step 600
600 (this color)
#278311
oklch(53.5% 0.166 140.7)
-
Step 700
700
#20740A
oklch(49% 0.154 140.6)
-
Step 800
800
#1D5F0F
oklch(42.7% 0.129 140.7)
-
Step 900
900
#1F4E16
oklch(37.8% 0.1 140.6)
-
Step 950
950
#132E0E
oklch(27.1% 0.064 140.6)
#278311 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) | #877600 | 0.114 |
| Deuteranopia (no green cones) | #7C6F21 | 0.113 |
| Tritanopia (no blue cones) | #147F6F | 0.110 |
| Achromatopsia (no color) | #727272 | 0.167 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #278311
#278311
oklch(53.5% 0.166 140.7)
- #9745A7
#9745A7
oklch(53.5% 0.167 320.8)
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 #278311, closest first.
No curated palette has a color within ΔE 0.04 of #278311.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grass Green #388004 ΔE 0.012
- Tree Green #2A7E19 ΔE 0.017
- Green #008000 ΔE 0.020
- Forest Green #228B22 ΔE 0.023
- Emerald Green #028F1E ΔE 0.035
- Jungle Green #048243 ΔE 0.043
- Kelley Green #009337 ΔE 0.047
- Irish Green #019529 ΔE 0.051
Use #278311 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.