#31751E
Closest named color: Tree Green (#2A7E19). oklch(50% 0.138 139.7), rgb(49, 117, 30).
Aa
White text reads best on this color (5.68:1).
About this color
#31751E is a medium-dark, moderately saturated green. In OKLCH its lightness is 50%, its chroma 0.138 and its hue 140°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Tree Green (#2A7E19), ΔE 0.029 away. White text reads best on it, at 5.68:1.
| Hue family | Greens |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.138) |
| Temperature | in between |
| Nearest name | Tree Green (#2A7E19) |
| Black text | 3.69:1 |
| White text | 5.68:1 |
Values
| HEX | #31751E |
| RGB | rgb(49, 117, 30) |
| HSL | hsl(107, 59%, 29%) |
| OKLCH | oklch(50% 0.138 139.7) |
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 #31751E | 5.68:1 | AA | Lc -83.4 | Fine for body text |
| Black text on #31751E | 3.69:1 | AA large text | Lc 25.9 | Dividers and decoration only |
| #31751E text on white | 5.68:1 | AA | Lc 78.1 | Fine for body text |
| #31751E text on black | 3.69:1 | AA large text | Lc -23.7 | 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
#E3EDE1
oklch(93.5% 0.019 140.5)
-
Step 200
200
#CDE0C8
oklch(88.6% 0.038 139.2)
-
Step 300
300
#AACCA3
oklch(80.9% 0.067 140.3)
-
Step 400
400
#7CB170
oklch(70.7% 0.107 139.9)
-
Step 500
500
#599D49
oklch(63.1% 0.137 139.8)
-
Step 600
600
#3D8729
oklch(55.6% 0.148 139.7)
-
Step 700
700 (this color)
#31751E
oklch(50% 0.138 139.7)
-
Step 800
800
#285D19
oklch(42.7% 0.114 139.6)
-
Step 900
900
#254D1B
oklch(37.8% 0.09 139.7)
-
Step 950
950
#162D11
oklch(27% 0.057 140.1)
#31751E 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) | #786A10 | 0.092 |
| Deuteranopia (no green cones) | #706527 | 0.093 |
| Tritanopia (no blue cones) | #297164 | 0.094 |
| Achromatopsia (no color) | #676767 | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31751E
#31751E
oklch(50% 0.138 139.7)
- #854494
#854494
oklch(50% 0.14 319.8)
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 #31751E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tree Green #2A7E19 ΔE 0.029
- Dark Grass Green #388004 ΔE 0.039
- Green #008000 ΔE 0.044
- Jungle Green #048243 ΔE 0.045
- Dark Olive Green #556B2F ΔE 0.056
- Camo Green #526525 ΔE 0.061
- Camouflage Green #4B6113 ΔE 0.062
- Mud Green #606602 ΔE 0.064
Use #31751E 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.