#3F7447
Closest named color: Dark Olive Green (#556B2F). oklch(51% 0.091 147.6), rgb(63, 116, 71).
Aa
White text reads best on this color (5.52:1).
About this color
#3F7447 is a medium-dark, moderately saturated green. In OKLCH its lightness is 51%, its chroma 0.091 and its hue 148°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Olive Green (#556B2F), ΔE 0.036 away. White text reads best on it, at 5.52:1.
| Hue family | Greens |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.091) |
| Temperature | in between |
| Nearest name | Dark Olive Green (#556B2F) |
| Black text | 3.80:1 |
| White text | 5.52:1 |
Values
| HEX | #3F7447 |
| RGB | rgb(63, 116, 71) |
| HSL | hsl(129, 30%, 35%) |
| OKLCH | oklch(51% 0.091 147.6) |
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 #3F7447 | 5.52:1 | AA | Lc -82.8 | Fine for body text |
| Black text on #3F7447 | 3.80:1 | AA large text | Lc 26.6 | Dividers and decoration only |
| #3F7447 text on white | 5.52:1 | AA | Lc 77.5 | Fine for body text |
| #3F7447 text on black | 3.80:1 | AA large text | Lc -24.3 | 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
#F3F7F3
oklch(97.2% 0.007 145.5)
-
Step 100
100
#E4ECE5
oklch(93.5% 0.013 149.2)
-
Step 200
200
#CFDED0
oklch(88.5% 0.025 147.3)
-
Step 300
300
#AEC9B1
oklch(80.9% 0.044 148.3)
-
Step 400
400
#83AD88
oklch(70.7% 0.07 148)
-
Step 500
500
#63986A
oklch(63% 0.089 147.7)
-
Step 600
600
#498351
oklch(55.7% 0.098 147.3)
-
Step 700
700 (this color)
#3F7447
oklch(51% 0.091 147.6)
-
Step 800
800
#305A36
oklch(42.6% 0.076 147.4)
-
Step 900
900
#2B4A2F
oklch(37.7% 0.059 147.4)
-
Step 950
950
#1A2B1C
oklch(26.9% 0.036 147.4)
#3F7447 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) | #756C44 | 0.073 |
| Deuteranopia (no green cones) | #6D674A | 0.071 |
| Tritanopia (no blue cones) | #377269 | 0.053 |
| Achromatopsia (no color) | #696969 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F7447
#3F7447
oklch(51% 0.091 147.6)
- #825281
#825281
oklch(50.9% 0.092 327.5)
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 #3F7447, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive Green #556B2F ΔE 0.036
- Dark Moss Green #606C38 ΔE 0.042
- Muddy Green #657432 ΔE 0.048
- Camo Green #526525 ΔE 0.050
- Jungle Green #048243 ΔE 0.052
- Military Green #667C3E ΔE 0.056
- Dark Sage #598556 ΔE 0.063
- Mud Green #606602 ΔE 0.064
Use #3F7447 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.