#317B0B
Closest named color: Tree Green (#2A7E19). oklch(51.6% 0.155 138.4), rgb(49, 123, 11).
Aa
White text reads best on this color (5.29:1).
About this color
#317B0B is a medium-dark, vivid green. In OKLCH its lightness is 52%, its chroma 0.155 and its hue 138°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Tree Green (#2A7E19), ΔE 0.009 away. White text reads best on it, at 5.29:1.
| Hue family | Greens |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.155) |
| Temperature | in between |
| Nearest name | Tree Green (#2A7E19) |
| Black text | 3.96:1 |
| White text | 5.29:1 |
Values
| HEX | #317B0B |
| RGB | rgb(49, 123, 11) |
| HSL | hsl(100, 84%, 26%) |
| OKLCH | oklch(51.6% 0.155 138.4) |
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 #317B0B | 5.29:1 | AA | Lc -81.3 | Fine for body text |
| Black text on #317B0B | 3.96:1 | AA large text | Lc 28.2 | Dividers and decoration only |
| #317B0B text on white | 5.29:1 | AA | Lc 75.9 | Fine for body text |
| #317B0B text on black | 3.96:1 | AA large text | Lc -25.8 | 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
#CCE0C6
oklch(88.5% 0.041 138.5)
-
Step 300
300
#A9CD9E
oklch(81% 0.075 138.4)
-
Step 400
400
#7AB267
oklch(70.6% 0.12 138.1)
-
Step 500
500
#559E3B
oklch(63% 0.153 138.4)
-
Step 600
600
#37880E
oklch(55.4% 0.167 138.4)
-
Step 700
700 (this color)
#317B0B
oklch(51.6% 0.155 138.4)
-
Step 800
800
#245E06
oklch(42.6% 0.128 138.3)
-
Step 900
900
#234D12
oklch(37.6% 0.1 138.2)
-
Step 950
950
#152D0D
oklch(26.9% 0.062 138.6)
#317B0B 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) | #7F6F00 | 0.101 |
| Deuteranopia (no green cones) | #76691C | 0.101 |
| Tritanopia (no blue cones) | #2A7668 | 0.108 |
| Achromatopsia (no color) | #6B6B6B | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #317B0B
#317B0B
oklch(51.6% 0.155 138.4)
- #8C44A0
#8C44A0
oklch(51.6% 0.156 318.4)
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 #317B0B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tree Green #2A7E19 ΔE 0.009
- Dark Grass Green #388004 ΔE 0.018
- Green #008000 ΔE 0.025
- Jungle Green #048243 ΔE 0.044
- Forest Green #228B22 ΔE 0.046
- Emerald Green #028F1E ΔE 0.058
- Olive Green #677A04 ΔE 0.060
- Murky Green #6C7A0E ΔE 0.068
Use #317B0B 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.