#31911F
Closest named color: Irish Green (#019529). oklch(57.8% 0.172 140.9), rgb(49, 145, 31).
Aa
Black text reads best on this color (5.20:1).
About this color
#31911F is a medium-dark, vivid green. In OKLCH its lightness is 58%, its chroma 0.172 and its hue 141°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Irish Green (#019529), ΔE 0.017 away. Black text reads best on it, at 5.20:1.
| Hue family | Greens |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.172) |
| Temperature | in between |
| Nearest name | Irish Green (#019529) |
| Black text | 5.20:1 |
| White text | 4.03:1 |
Values
| HEX | #31911F |
| RGB | rgb(49, 145, 31) |
| HSL | hsl(111, 65%, 35%) |
| OKLCH | oklch(57.8% 0.172 140.9) |
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 #31911F | 4.03:1 | AA large text | Lc -72.7 | Content text, not long reading |
| Black text on #31911F | 5.20:1 | AA | Lc 36.9 | Non-text elements, placeholder text |
| #31911F text on white | 4.03:1 | AA large text | Lc 67.2 | Content text, not long reading |
| #31911F text on black | 5.20:1 | AA | Lc -34.5 | 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
#F2F7F1
oklch(97.1% 0.01 140.5)
-
Step 100
100
#E2EEE0
oklch(93.6% 0.023 141.2)
-
Step 200
200
#CAE1C6
oklch(88.5% 0.044 141)
-
Step 300
300
#A6CE9F
oklch(81% 0.078 140.9)
-
Step 400
400
#74B469
oklch(70.8% 0.124 140.8)
-
Step 500
500
#4BA03D
oklch(63.1% 0.159 140.9)
-
Step 600
600 (this color)
#31911F
oklch(57.8% 0.172 140.9)
-
Step 700
700
#197502
oklch(49.1% 0.16 141)
-
Step 800
800
#195F0A
oklch(42.6% 0.132 140.9)
-
Step 900
900
#1C4E14
oklch(37.6% 0.103 141.1)
-
Step 950
950
#122E0D
oklch(27% 0.066 140.7)
#31911F 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) | #958302 | 0.118 |
| Deuteranopia (no green cones) | #897B2C | 0.118 |
| Tritanopia (no blue cones) | #208C7C | 0.115 |
| Achromatopsia (no color) | #7E7E7E | 0.173 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31911F
#31911F
oklch(57.8% 0.172 140.9)
- #A650B6
#A650B6
oklch(57.8% 0.172 321.1)
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 #31911F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Irish Green #019529 ΔE 0.017
- Emerald Green #028F1E ΔE 0.019
- Kelley Green #009337 ΔE 0.020
- Forest Green #228B22 ΔE 0.022
- True Green #089404 ΔE 0.023
- Grass Green #3F9B0B ΔE 0.035
- Sap Green #5C8B15 ΔE 0.038
- Grassy Green #419C03 ΔE 0.039
Use #31911F 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.