#4F403F
Closest named color: Charcoal Grey (#3C4142). oklch(38.7% 0.021 22.6), rgb(79, 64, 63).
Aa
White text reads best on this color (9.82:1).
About this color
#4F403F is a dark close to neutral grey. In OKLCH its lightness is 39%, its chroma 0.021. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.032 away. White text reads best on it, at 9.82:1.
| Hue family | Neutrals |
| Lightness | dark (39%) |
| Chroma | close to neutral grey (0.021) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.13:1 |
| White text | 9.82:1 |
Values
| HEX | #4F403F |
| RGB | rgb(79, 64, 63) |
| HSL | hsl(4, 11%, 28%) |
| OKLCH | oklch(38.7% 0.021 22.6) |
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 #4F403F | 9.82:1 | AAA | Lc -97.0 | Preferred for body text |
| Black text on #4F403F | 2.13:1 | Fails | Lc 11.2 | Not readable |
| #4F403F text on white | 9.82:1 | AAA | Lc 92.8 | Preferred for body text |
| #4F403F text on black | 2.13:1 | Fails | Lc -9.7 | 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
#F7F5F5
oklch(97.2% 0.002 17.2)
-
Step 100
100
#EDE9E8
oklch(93.7% 0.005 34.3)
-
Step 200
200
#DFD7D6
oklch(88.5% 0.009 26)
-
Step 300
300
#CBBDBC
oklch(81% 0.016 22.4)
-
Step 400
400
#B09B99
oklch(70.7% 0.025 24.3)
-
Step 500
500
#9C8280
oklch(63% 0.032 23.2)
-
Step 600
600
#876C6A
oklch(55.7% 0.035 23.2)
-
Step 700
700
#725A58
oklch(49.1% 0.032 23.8)
-
Step 800
800
#5D4948
oklch(42.6% 0.027 21.6)
-
Step 900
900 (this color)
#4F403F
oklch(38.7% 0.021 22.6)
-
Step 950
950
#2D2423
oklch(27% 0.014 25.5)
#4F403F 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) | #43423F | 0.021 |
| Deuteranopia (no green cones) | #46453F | 0.021 |
| Tritanopia (no blue cones) | #523E40 | 0.009 |
| Achromatopsia (no color) | #434343 | 0.021 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F403F
#4F403F
oklch(38.7% 0.021 22.6)
- #374849
#374849
oklch(38.7% 0.022 200.8)
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 #4F403F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.032
- Purple Brown #673A3F ΔE 0.047
- Onyx #343A40 ΔE 0.053
- Dark Slate Gray #2F4F4F ΔE 0.061
- Charcoal #264653 ΔE 0.065
- Dark Grey Blue #29465B ΔE 0.068
- Mud Brown #60460F ΔE 0.073
- Brownish Purple #76424E ΔE 0.079
Use #4F403F 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.