#3D4949
Closest named color: Dark Slate Gray (#2F4F4F). oklch(39.5% 0.015 196.5), rgb(61, 73, 73).
Aa
White text reads best on this color (9.34:1).
About this color
#3D4949 is a dark close to neutral grey. In OKLCH its lightness is 39%, its chroma 0.015. It has too little chroma to lean warm or cool. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.024 away. White text reads best on it, at 9.34:1.
| Hue family | Neutrals |
| Lightness | dark (39%) |
| Chroma | close to neutral grey (0.015) |
| Temperature | neutral |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.24:1 |
| White text | 9.34:1 |
Values
| HEX | #3D4949 |
| RGB | rgb(61, 73, 73) |
| HSL | hsl(180, 9%, 26%) |
| OKLCH | oklch(39.5% 0.015 196.5) |
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 #3D4949 | 9.34:1 | AAA | Lc -95.9 | Preferred for body text |
| Black text on #3D4949 | 2.24:1 | Fails | Lc 12.4 | Not readable |
| #3D4949 text on white | 9.34:1 | AAA | Lc 91.6 | Preferred for body text |
| #3D4949 text on black | 2.24:1 | Fails | Lc -10.8 | 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 900.
-
Step 50
50
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E7EAEA
oklch(93.5% 0.003 197.1)
-
Step 200
200
#D4DADA
oklch(88.4% 0.007 197)
-
Step 300
300
#B8C3C3
oklch(80.9% 0.012 196.9)
-
Step 400
400
#94A4A4
oklch(70.6% 0.018 196.8)
-
Step 500
500
#7A8E8E
oklch(63.1% 0.023 196.6)
-
Step 600
600
#627878
oklch(55.5% 0.026 196.4)
-
Step 700
700
#516565
oklch(49% 0.024 196.4)
-
Step 800
800
#435353
oklch(42.9% 0.02 196.4)
-
Step 900
900 (this color)
#3D4949
oklch(39.5% 0.015 196.5)
-
Step 950
950
#212828
oklch(27% 0.01 196.6)
#3D4949 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) | #474849 | 0.016 |
| Deuteranopia (no green cones) | #454649 | 0.015 |
| Tritanopia (no blue cones) | #394A49 | 0.006 |
| Achromatopsia (no color) | #474747 | 0.016 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D4949
#3D4949
oklch(39.5% 0.015 196.5)
- #4E4343
#4E4343
oklch(39.4% 0.015 17.8)
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 #3D4949, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.024
- Charcoal Grey #3C4142 ΔE 0.025
- Charcoal #264653 ΔE 0.037
- Dark Grey Blue #29465B ΔE 0.043
- Dark Teal #014D4E ΔE 0.051
- Onyx #343A40 ΔE 0.051
- Dark Blue Green #005249 ΔE 0.056
- Deep Teal #00555A ΔE 0.056
Use #3D4949 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.