#405644
Closest named color: Dark Slate Gray (#2F4F4F). oklch(42.9% 0.04 149.9), rgb(64, 86, 68).
Aa
White text reads best on this color (7.97:1).
About this color
#405644 is a dark, muted green. In OKLCH its lightness is 43%, its chroma 0.040 and its hue 150°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.040 away. White text reads best on it, at 7.97:1.
| Hue family | Greens |
| Lightness | dark (43%) |
| Chroma | muted (0.040) |
| Temperature | in between |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.63:1 |
| White text | 7.97:1 |
Values
| HEX | #405644 |
| RGB | rgb(64, 86, 68) |
| HSL | hsl(131, 15%, 29%) |
| OKLCH | oklch(42.9% 0.04 149.9) |
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 #405644 | 7.97:1 | AAA | Lc -92.3 | Preferred for body text |
| Black text on #405644 | 2.63:1 | Fails | Lc 16.4 | Dividers and decoration only |
| #405644 text on white | 7.97:1 | AAA | Lc 87.6 | Fine for body text |
| #405644 text on black | 2.63:1 | Fails | Lc -14.5 | Not readable |
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 800.
-
Step 50
50
#F4F6F4
oklch(97.1% 0.003 145.5)
-
Step 100
100
#E7EBE7
oklch(93.6% 0.007 145.5)
-
Step 200
200
#D3DCD5
oklch(88.6% 0.014 152.6)
-
Step 300
300
#B7C5B9
oklch(80.9% 0.023 149.6)
-
Step 400
400
#91A894
oklch(70.8% 0.039 148.9)
-
Step 500
500
#75927A
oklch(63.1% 0.048 149.9)
-
Step 600
600
#5E7C63
oklch(55.6% 0.052 149.5)
-
Step 700
700
#4D6952
oklch(49.2% 0.049 149.7)
-
Step 800
800 (this color)
#405644
oklch(42.9% 0.04 149.9)
-
Step 900
900
#364639
oklch(37.6% 0.03 150.3)
-
Step 950
950
#202921
oklch(26.9% 0.019 148.1)
#405644 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) | #565243 | 0.034 |
| Deuteranopia (no green cones) | #535045 | 0.033 |
| Tritanopia (no blue cones) | #3D5551 | 0.022 |
| Achromatopsia (no color) | #515151 | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #405644
#405644
oklch(42.9% 0.04 149.9)
- #5C485A
#5C485A
oklch(42.9% 0.039 329.6)
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 #405644, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.040
- Pine #2B5D34 ΔE 0.046
- Dark Green Blue #1F6357 ΔE 0.047
- Dark Blue Green #005249 ΔE 0.055
- Deep Teal #00555A ΔE 0.058
- Spruce #0A5F38 ΔE 0.059
- Green Brown #544E03 ΔE 0.066
- Army Green #4B5D16 ΔE 0.067
Use #405644 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.