#3D4640
Closest named color: Charcoal Grey (#3C4142). oklch(38.4% 0.015 156.4), rgb(61, 70, 64).
Aa
White text reads best on this color (9.77:1).
About this color
#3D4640 is a dark close to neutral grey. In OKLCH its lightness is 38%, its chroma 0.015. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.018 away. White text reads best on it, at 9.77:1.
| Hue family | Neutrals |
| Lightness | dark (38%) |
| Chroma | close to neutral grey (0.015) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.14:1 |
| White text | 9.77:1 |
Values
| HEX | #3D4640 |
| RGB | rgb(61, 70, 64) |
| HSL | hsl(140, 7%, 26%) |
| OKLCH | oklch(38.4% 0.015 156.4) |
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 #3D4640 | 9.77:1 | AAA | Lc -96.9 | Preferred for body text |
| Black text on #3D4640 | 2.14:1 | Fails | Lc 11.3 | Not readable |
| #3D4640 text on white | 9.77:1 | AAA | Lc 92.7 | Preferred for body text |
| #3D4640 text on black | 2.14:1 | Fails | Lc -9.8 | 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
#F5F6F5
oklch(97.2% 0.002 145.6)
-
Step 100
100
#E8EAE9
oklch(93.5% 0.003 165.1)
-
Step 200
200
#D6DAD7
oklch(88.4% 0.006 153.8)
-
Step 300
300
#BBC3BD
oklch(80.9% 0.012 153.6)
-
Step 400
400
#98A49C
oklch(70.7% 0.018 156.7)
-
Step 500
500
#7E8E84
oklch(63.1% 0.024 158.2)
-
Step 600
600
#68786D
oklch(55.6% 0.025 155.5)
-
Step 700
700
#56655B
oklch(49.1% 0.024 156.2)
-
Step 800
800
#46524B
oklch(42.6% 0.019 159.9)
-
Step 900
900 (this color)
#3D4640
oklch(38.4% 0.015 156.4)
-
Step 950
950
#232824
oklch(27% 0.01 151.4)
#3D4640 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) | #464440 | 0.015 |
| Deuteranopia (no green cones) | #444340 | 0.014 |
| Tritanopia (no blue cones) | #3C4644 | 0.007 |
| Achromatopsia (no color) | #444444 | 0.016 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D4640
#3D4640
oklch(38.4% 0.015 156.4)
- #494046
#494046
oklch(38.3% 0.016 338.1)
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 #3D4640, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.018
- Dark Slate Gray #2F4F4F ΔE 0.033
- Charcoal #264653 ΔE 0.042
- Onyx #343A40 ΔE 0.044
- Dark Grey Blue #29465B ΔE 0.051
- Dark Teal #014D4E ΔE 0.054
- Dark Blue Green #005249 ΔE 0.058
- Deep Teal #00555A ΔE 0.065
Use #3D4640 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.