#31910F
Closest named color: True Green (#089404). oklch(57.8% 0.179 139.8), rgb(49, 145, 15).
Aa
Black text reads best on this color (5.18:1).
About this color
#31910F is a medium-dark, vivid green. In OKLCH its lightness is 58%, its chroma 0.179 and its hue 140°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is True Green (#089404), ΔE 0.018 away. Black text reads best on it, at 5.18:1.
| Hue family | Greens |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.179) |
| Temperature | in between |
| Nearest name | True Green (#089404) |
| Black text | 5.18:1 |
| White text | 4.04:1 |
Values
| HEX | #31910F |
| RGB | rgb(49, 145, 15) |
| HSL | hsl(104, 81%, 31%) |
| OKLCH | oklch(57.8% 0.179 139.8) |
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 #31910F | 4.04:1 | AA large text | Lc -72.7 | Content text, not long reading |
| Black text on #31910F | 5.18:1 | AA | Lc 36.8 | Non-text elements, placeholder text |
| #31910F text on white | 4.04:1 | AA large text | Lc 67.2 | Content text, not long reading |
| #31910F text on black | 5.18:1 | AA | Lc -34.4 | Non-text elements, placeholder text |
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
#F2F7F0
oklch(97% 0.011 136.6)
-
Step 100
100
#E2EEDF
oklch(93.6% 0.024 139.4)
-
Step 200
200
#CAE1C5
oklch(88.5% 0.045 140.1)
-
Step 300
300
#A6CE9C
oklch(81% 0.081 139.4)
-
Step 400
400
#74B465
oklch(70.7% 0.128 139.8)
-
Step 500
500
#4CA036
oklch(63.1% 0.164 139.7)
-
Step 600
600 (this color)
#31910F
oklch(57.8% 0.179 139.8)
-
Step 700
700
#227400
oklch(49% 0.157 139.8)
-
Step 800
800
#1A5F00
oklch(42.6% 0.136 139.8)
-
Step 900
900
#1C4E0F
oklch(37.6% 0.107 140)
-
Step 950
950
#122E0B
oklch(27% 0.068 139.8)
#31910F 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) | #958300 | 0.120 |
| Deuteranopia (no green cones) | #8A7B23 | 0.120 |
| Tritanopia (no blue cones) | #228C7B | 0.121 |
| Achromatopsia (no color) | #7E7E7E | 0.180 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31910F
#31910F
oklch(57.8% 0.179 139.8)
- #A64EBA
#A64EBA
oklch(57.7% 0.179 319.9)
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 #31910F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- True Green #089404 ΔE 0.018
- Irish Green #019529 ΔE 0.018
- Emerald Green #028F1E ΔE 0.019
- Forest Green #228B22 ΔE 0.024
- Kelley Green #009337 ΔE 0.025
- Grass Green #3F9B0B ΔE 0.033
- Grassy Green #419C03 ΔE 0.037
- Sap Green #5C8B15 ΔE 0.041
Use #31910F 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.