#404941
Closest named color: Charcoal Grey (#3C4142). oklch(39.5% 0.018 148.4), rgb(64, 73, 65).
Aa
White text reads best on this color (9.34:1).
About this color
#404941 is a dark close to neutral grey. In OKLCH its lightness is 39%, its chroma 0.018. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.028 away. White text reads best on it, at 9.34:1.
| Hue family | Neutrals |
| Lightness | dark (39%) |
| Chroma | close to neutral grey (0.018) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.24:1 |
| White text | 9.34:1 |
Values
| HEX | #404941 |
| RGB | rgb(64, 73, 65) |
| HSL | hsl(127, 7%, 27%) |
| OKLCH | oklch(39.5% 0.018 148.4) |
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 #404941 | 9.34:1 | AAA | Lc -95.9 | Preferred for body text |
| Black text on #404941 | 2.24:1 | Fails | Lc 12.4 | Not readable |
| #404941 text on white | 9.34:1 | AAA | Lc 91.6 | Preferred for body text |
| #404941 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
#F5F6F5
oklch(97.2% 0.002 145.6)
-
Step 100
100
#E8EAE8
oklch(93.5% 0.003 145.5)
-
Step 200
200
#D6DAD6
oklch(88.4% 0.007 145.5)
-
Step 300
300
#BBC3BC
oklch(80.9% 0.013 149.2)
-
Step 400
400
#98A499
oklch(70.6% 0.021 147.7)
-
Step 500
500
#7F8E80
oklch(63% 0.027 147.1)
-
Step 600
600
#68786A
oklch(55.5% 0.029 148.8)
-
Step 700
700
#566558
oklch(49% 0.027 149)
-
Step 800
800
#475348
oklch(42.8% 0.023 147.5)
-
Step 900
900 (this color)
#404941
oklch(39.5% 0.018 148.4)
-
Step 950
950
#232823
oklch(27% 0.012 145.2)
#404941 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) | #494741 | 0.015 |
| Deuteranopia (no green cones) | #484641 | 0.015 |
| Tritanopia (no blue cones) | #3F4947 | 0.010 |
| Achromatopsia (no color) | #474747 | 0.018 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #404941
#404941
oklch(39.5% 0.018 148.4)
- #4C434B
#4C434B
oklch(39.5% 0.018 329.5)
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 #404941, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.028
- Dark Slate Gray #2F4F4F ΔE 0.030
- Charcoal #264653 ΔE 0.048
- Onyx #343A40 ΔE 0.055
- Dark Grey Blue #29465B ΔE 0.056
- Dark Teal #014D4E ΔE 0.056
- Dark Blue Green #005249 ΔE 0.057
- Deep Teal #00555A ΔE 0.062
Use #404941 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.