#4C403F
Closest named color: Charcoal Grey (#3C4142). oklch(38.4% 0.017 23.6), rgb(76, 64, 63).
Aa
White text reads best on this color (9.94:1).
About this color
#4C403F is a dark close to neutral grey. In OKLCH its lightness is 38%, its chroma 0.017. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.027 away. White text reads best on it, at 9.94:1.
| Hue family | Neutrals |
| Lightness | dark (38%) |
| Chroma | close to neutral grey (0.017) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.11:1 |
| White text | 9.94:1 |
Values
| HEX | #4C403F |
| RGB | rgb(76, 64, 63) |
| HSL | hsl(5, 9%, 27%) |
| OKLCH | oklch(38.4% 0.017 23.6) |
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 #4C403F | 9.94:1 | AAA | Lc -97.2 | Preferred for body text |
| Black text on #4C403F | 2.11:1 | Fails | Lc 10.9 | Not readable |
| #4C403F text on white | 9.94:1 | AAA | Lc 93.1 | Preferred for body text |
| #4C403F text on black | 2.11:1 | Fails | Lc -9.4 | 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
#F6F5F5
oklch(97.1% 0.001 17.2)
-
Step 100
100
#ECE9E9
oklch(93.6% 0.003 17.2)
-
Step 200
200
#DED7D7
oklch(88.5% 0.008 17.3)
-
Step 300
300
#C9BEBD
oklch(81% 0.013 23.7)
-
Step 400
400
#AD9C9B
oklch(70.7% 0.02 21.7)
-
Step 500
500
#998482
oklch(63.2% 0.026 24.3)
-
Step 600
600
#836D6B
oklch(55.5% 0.028 24.1)
-
Step 700
700
#6F5B5A
oklch(49.1% 0.026 21.5)
-
Step 800
800
#5A4B49
oklch(42.7% 0.021 26.9)
-
Step 900
900 (this color)
#4C403F
oklch(38.4% 0.017 23.6)
-
Step 950
950
#2B2424
oklch(26.8% 0.011 17.8)
#4C403F 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) | #42413F | 0.017 |
| Deuteranopia (no green cones) | #45443F | 0.017 |
| Tritanopia (no blue cones) | #4F3F40 | 0.007 |
| Achromatopsia (no color) | #434343 | 0.017 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4C403F
#4C403F
oklch(38.4% 0.017 23.6)
- #394647
#394647
oklch(38.3% 0.017 202.2)
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 #4C403F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.027
- Onyx #343A40 ΔE 0.047
- Purple Brown #673A3F ΔE 0.052
- Dark Slate Gray #2F4F4F ΔE 0.058
- Charcoal #264653 ΔE 0.060
- Dark Grey Blue #29465B ΔE 0.064
- Mud Brown #60460F ΔE 0.075
- Dark Blue Grey #1F3B4D ΔE 0.076
Use #4C403F 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.