#3C313C
Closest named color: Onyx (#343A40). oklch(32.9% 0.024 326.1), rgb(60, 49, 60).
Aa
White text reads best on this color (12.37:1).
About this color
#3C313C is a dark close to neutral grey. In OKLCH its lightness is 33%, its chroma 0.024. It has too little chroma to lean warm or cool. The nearest named color is Onyx (#343A40), ΔE 0.030 away. White text reads best on it, at 12.37:1.
| Hue family | Neutrals |
| Lightness | dark (33%) |
| Chroma | close to neutral grey (0.024) |
| Temperature | neutral |
| Nearest name | Onyx (#343A40) |
| Black text | 1.69:1 |
| White text | 12.37:1 |
Values
| HEX | #3C313C |
| RGB | rgb(60, 49, 60) |
| HSL | hsl(300, 10%, 21%) |
| OKLCH | oklch(32.9% 0.024 326.1) |
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 #3C313C | 12.37:1 | AAA | Lc -101.6 | Preferred for body text |
| Black text on #3C313C | 1.69:1 | Fails | Lc 0.0 | Not readable |
| #3C313C text on white | 12.37:1 | AAA | Lc 98.2 | Preferred for body text |
| #3C313C text on black | 1.69:1 | Fails | Lc 0.0 | 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 900.
-
Step 50
50
#F6F5F6
oklch(97.1% 0.002 325.6)
-
Step 100
100
#ECE9EC
oklch(93.7% 0.005 325.6)
-
Step 200
200
#DDD7DD
oklch(88.6% 0.01 325.7)
-
Step 300
300
#C7BDC7
oklch(81% 0.018 325.7)
-
Step 400
400
#AB9BAA
oklch(70.8% 0.028 327.8)
-
Step 500
500
#968296
oklch(63.1% 0.038 326)
-
Step 600
600
#806B80
oklch(55.5% 0.041 326.1)
-
Step 700
700
#6C596C
oklch(49% 0.038 326.1)
-
Step 800
800
#584958
oklch(42.6% 0.031 326.1)
-
Step 900
900 (this color)
#3C313C
oklch(32.9% 0.024 326.1)
-
Step 950
950
#2B242B
oklch(27.1% 0.016 326)
#3C313C 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) | #30343C | 0.022 |
| Deuteranopia (no green cones) | #33353C | 0.020 |
| Tritanopia (no blue cones) | #3D3235 | 0.014 |
| Achromatopsia (no color) | #343434 | 0.025 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3C313C
#3C313C
oklch(32.9% 0.024 326.1)
- #2D392E
#2D392E
oklch(33% 0.025 147.2)
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 #3C313C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.030
- Gunmetal #293241 ΔE 0.033
- Space Cadet #2B2D42 ΔE 0.037
- Charcoal Grey #3C4142 ΔE 0.050
- Dark Blue Grey #1F3B4D ΔE 0.052
- Prussian Blue #1D3557 ΔE 0.063
- Midnight Green #073B4C ΔE 0.067
- Charcoal #264653 ΔE 0.071
Use #3C313C 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.