#31801E
Closest named color: Tree Green (#2A7E19). oklch(53.1% 0.152 140.3), rgb(49, 128, 30).
Aa
White text reads best on this color (4.95:1).
About this color
#31801E is a medium-dark, vivid green. In OKLCH its lightness is 53%, its chroma 0.152 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 0.009 away. White text reads best on it, at 4.95:1.
| Hue family | Greens |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.152) |
| Temperature | in between |
| Nearest name | Tree Green (#2A7E19) |
| Black text | 4.23:1 |
| White text | 4.95:1 |
Values
| HEX | #31801E |
| RGB | rgb(49, 128, 30) |
| HSL | hsl(108, 62%, 31%) |
| OKLCH | oklch(53.1% 0.152 140.3) |
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 #31801E | 4.95:1 | AA | Lc -79.4 | Fine for body text |
| Black text on #31801E | 4.23:1 | AA large text | Lc 30.1 | Non-text elements, placeholder text |
| #31801E text on white | 4.95:1 | AA | Lc 73.9 | Content text, not long reading |
| #31801E text on black | 4.23:1 | AA large text | Lc -27.8 | 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 600.
-
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
#CCE0C8
oklch(88.5% 0.039 140.5)
-
Step 300
300
#A9CCA2
oklch(80.8% 0.069 140.4)
-
Step 400
400
#7BB26F
oklch(70.8% 0.111 140)
-
Step 500
500
#579E48
oklch(63.3% 0.141 140.2)
-
Step 600
600 (this color)
#31801E
oklch(53.1% 0.152 140.3)
-
Step 700
700
#2B7319
oklch(49.1% 0.142 140.2)
-
Step 800
800
#255E18
oklch(42.8% 0.118 140.3)
-
Step 900
900
#244D1B
oklch(37.8% 0.091 140.2)
-
Step 950
950
#162D11
oklch(27% 0.057 140.1)
#31801E 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) | #84740A | 0.103 |
| Deuteranopia (no green cones) | #7A6D28 | 0.104 |
| Tritanopia (no blue cones) | #267C6D | 0.101 |
| Achromatopsia (no color) | #707070 | 0.153 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31801E
#31801E
oklch(53.1% 0.152 140.3)
- #9249A1
#9249A1
oklch(53.1% 0.152 320.6)
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 #31801E, closest first.
No curated palette has a color within ΔE 0.04 of #31801E.
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 0.011
- Green #008000 ΔE 0.028
- Forest Green #228B22 ΔE 0.032
- Jungle Green #048243 ΔE 0.035
- Emerald Green #028F1E ΔE 0.046
- Kelley Green #009337 ΔE 0.054
- Olive Green #677A04 ΔE 0.057
Use #31801E 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.