#1F751B
Closest named color: Tree Green (#2A7E19). oklch(49.4% 0.148 142.4), rgb(31, 117, 27).
Aa
White text reads best on this color (5.80:1).
About this color
#1F751B is a medium-dark, vivid green. In OKLCH its lightness is 49%, its chroma 0.148 and its hue 142°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Tree Green (#2A7E19), ΔE 0.030 away. White text reads best on it, at 5.80:1.
| Hue family | Greens |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.148) |
| Temperature | in between |
| Nearest name | Tree Green (#2A7E19) |
| Black text | 3.61:1 |
| White text | 5.80:1 |
Values
| HEX | #1F751B |
| RGB | rgb(31, 117, 27) |
| HSL | hsl(117, 63%, 28%) |
| OKLCH | oklch(49.4% 0.148 142.4) |
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 #1F751B | 5.80:1 | AA | Lc -83.8 | Fine for body text |
| Black text on #1F751B | 3.61:1 | AA large text | Lc 25.5 | Dividers and decoration only |
| #1F751B text on white | 5.80:1 | AA | Lc 78.6 | Fine for body text |
| #1F751B text on black | 3.61:1 | AA large text | Lc -23.2 | 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
#E2EEE1
oklch(93.7% 0.021 143.2)
-
Step 200
200
#CBE0C8
oklch(88.4% 0.039 141.7)
-
Step 300
300
#A7CDA3
oklch(81% 0.071 142.4)
-
Step 400
400
#75B370
oklch(70.7% 0.115 142.6)
-
Step 500
500
#4E9F48
oklch(63.1% 0.147 142.3)
-
Step 600
600
#2D8928
oklch(55.6% 0.159 142.4)
-
Step 700
700 (this color)
#1F751B
oklch(49.4% 0.148 142.4)
-
Step 800
800
#1C5F19
oklch(42.8% 0.123 142.5)
-
Step 900
900
#1E4E1B
oklch(37.8% 0.096 142.4)
-
Step 950
950
#132E11
oklch(27.1% 0.061 142.4)
#1F751B 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) | #78690A | 0.105 |
| Deuteranopia (no green cones) | #6E6325 | 0.104 |
| Tritanopia (no blue cones) | #057164 | 0.097 |
| Achromatopsia (no color) | #656565 | 0.148 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F751B
#1F751B
oklch(49.4% 0.148 142.4)
- #873E92
#873E92
oklch(49.3% 0.149 322.2)
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 #1F751B, closest first.
No curated palette has a color within ΔE 0.04 of #1F751B.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tree Green #2A7E19 ΔE 0.030
- Green #008000 ΔE 0.039
- Dark Grass Green #388004 ΔE 0.043
- Jungle Green #048243 ΔE 0.047
- Dark Green #006400 ΔE 0.058
- Dark Olive Green #556B2F ΔE 0.067
- Forest Green #228B22 ΔE 0.068
- Camouflage Green #4B6113 ΔE 0.068
Use #1F751B 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.