#3D544E
Closest named color: Dark Slate Gray (#2F4F4F). oklch(42.5% 0.03 177), rgb(61, 84, 78).
Aa
White text reads best on this color (8.15:1).
About this color
#3D544E is a dark close to neutral grey. In OKLCH its lightness is 42%, its chroma 0.030. It has too little chroma to lean warm or cool. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.026 away. White text reads best on it, at 8.15:1.
| Hue family | Neutrals |
| Lightness | dark (42%) |
| Chroma | close to neutral grey (0.030) |
| Temperature | neutral |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.57:1 |
| White text | 8.15:1 |
Values
| HEX | #3D544E |
| RGB | rgb(61, 84, 78) |
| HSL | hsl(164, 16%, 28%) |
| OKLCH | oklch(42.5% 0.03 177) |
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 #3D544E | 8.15:1 | AAA | Lc -92.8 | Preferred for body text |
| Black text on #3D544E | 2.57:1 | Fails | Lc 15.8 | Dividers and decoration only |
| #3D544E text on white | 8.15:1 | AAA | Lc 88.2 | Fine for body text |
| #3D544E text on black | 2.57:1 | Fails | Lc -14.0 | 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
#E6EBEA
oklch(93.6% 0.006 183)
-
Step 200
200
#D3DBD9
oklch(88.5% 0.009 179.6)
-
Step 300
300
#B5C4C0
oklch(80.8% 0.017 178.2)
-
Step 400
400
#8FA7A0
oklch(70.8% 0.029 176)
-
Step 500
500
#739189
oklch(63.1% 0.036 177)
-
Step 600
600
#5B7B73
oklch(55.6% 0.039 177.7)
-
Step 700
700
#4B6860
oklch(49.2% 0.036 175.8)
-
Step 800
800 (this color)
#3D544E
oklch(42.5% 0.03 177)
-
Step 900
900
#354641
oklch(37.8% 0.023 175.1)
-
Step 950
950
#1F2926
oklch(27% 0.015 174.9)
#3D544E 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) | #52514E | 0.031 |
| Deuteranopia (no green cones) | #4E4E4E | 0.030 |
| Tritanopia (no blue cones) | #375552 | 0.009 |
| Achromatopsia (no color) | #4F4F4F | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D544E
#3D544E
oklch(42.5% 0.03 177)
- #5C484F
#5C484F
oklch(42.5% 0.029 355.5)
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 #3D544E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.026
- Deep Teal #00555A ΔE 0.047
- Dark Green Blue #1F6357 ΔE 0.050
- Dark Blue Green #005249 ΔE 0.051
- Petrol #005F6A ΔE 0.057
- Dark Teal #014D4E ΔE 0.058
- Charcoal Grey #3C4142 ΔE 0.059
- Charcoal #264653 ΔE 0.060
Use #3D544E 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.