#405648
Closest named color: Dark Slate Gray (#2F4F4F). oklch(43% 0.036 156.7), rgb(64, 86, 72).
Aa
White text reads best on this color (7.94:1).
About this color
#405648 is a dark, muted green. In OKLCH its lightness is 43%, its chroma 0.036 and its hue 157°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.037 away. White text reads best on it, at 7.94:1.
| Hue family | Greens |
| Lightness | dark (43%) |
| Chroma | muted (0.036) |
| Temperature | in between |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.64:1 |
| White text | 7.94:1 |
Values
| HEX | #405648 |
| RGB | rgb(64, 86, 72) |
| HSL | hsl(142, 15%, 29%) |
| OKLCH | oklch(43% 0.036 156.7) |
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 #405648 | 7.94:1 | AAA | Lc -92.2 | Preferred for body text |
| Black text on #405648 | 2.64:1 | Fails | Lc 16.5 | Dividers and decoration only |
| #405648 text on white | 7.94:1 | AAA | Lc 87.5 | Fine for body text |
| #405648 text on black | 2.64:1 | Fails | Lc -14.6 | 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
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E7EBE8
oklch(93.6% 0.006 153.8)
-
Step 200
200
#D3DBD6
oklch(88.4% 0.011 158.8)
-
Step 300
300
#B6C5BB
oklch(80.9% 0.021 156.7)
-
Step 400
400
#90A798
oklch(70.6% 0.034 156.9)
-
Step 500
500
#75927F
oklch(63.2% 0.043 156.2)
-
Step 600
600
#5D7C68
oklch(55.6% 0.047 156.2)
-
Step 700
700
#4D6857
oklch(49% 0.042 156.9)
-
Step 800
800 (this color)
#405648
oklch(43% 0.036 156.7)
-
Step 900
900
#36463C
oklch(37.7% 0.027 157.4)
-
Step 950
950
#202923
oklch(27% 0.017 155.9)
#405648 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) | #565347 | 0.033 |
| Deuteranopia (no green cones) | #525049 | 0.032 |
| Tritanopia (no blue cones) | #3C5652 | 0.016 |
| Achromatopsia (no color) | #515151 | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #405648
#405648
oklch(43% 0.036 156.7)
- #5D4957
#5D4957
oklch(43.1% 0.035 337.3)
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 #405648, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.037
- Dark Green Blue #1F6357 ΔE 0.046
- Pine #2B5D34 ΔE 0.051
- Dark Blue Green #005249 ΔE 0.055
- Deep Teal #00555A ΔE 0.055
- Petrol #005F6A ΔE 0.063
- Spruce #0A5F38 ΔE 0.063
- Dark Teal #014D4E ΔE 0.066
Use #405648 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.