#434043
Closest named color: Charcoal Grey (#3C4142). oklch(37.6% 0.006 325.7), rgb(67, 64, 67).
Aa
White text reads best on this color (10.22:1).
About this color
#434043 is a dark close to neutral grey. In OKLCH its lightness is 38%, its chroma 0.006. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.012 away. White text reads best on it, at 10.22:1.
| Hue family | Neutrals |
| Lightness | dark (38%) |
| Chroma | close to neutral grey (0.006) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.05:1 |
| White text | 10.22:1 |
Values
| HEX | #434043 |
| RGB | rgb(67, 64, 67) |
| HSL | hsl(300, 2%, 26%) |
| OKLCH | oklch(37.6% 0.006 325.7) |
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 #434043 | 10.22:1 | AAA | Lc -97.8 | Preferred for body text |
| Black text on #434043 | 2.05:1 | Fails | Lc 10.2 | Not readable |
| #434043 text on white | 10.22:1 | AAA | Lc 93.8 | Preferred for body text |
| #434043 text on black | 2.05:1 | Fails | Lc -8.8 | 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
#F6F5F6
oklch(97.1% 0.002 325.6)
-
Step 100
100
#EAE9EA
oklch(93.5% 0.002 325.6)
-
Step 200
200
#DAD8DA
oklch(88.4% 0.003 325.6)
-
Step 300
300
#C2BFC2
oklch(80.8% 0.005 325.6)
-
Step 400
400
#A39FA3
oklch(70.7% 0.007 325.7)
-
Step 500
500
#8D878D
oklch(63.1% 0.011 325.7)
-
Step 600
600
#777177
oklch(55.6% 0.012 325.7)
-
Step 700
700
#645F64
oklch(49.2% 0.01 325.7)
-
Step 800
800
#514D51
oklch(42.5% 0.008 325.7)
-
Step 900
900 (this color)
#434043
oklch(37.6% 0.006 325.7)
-
Step 950
950
#272627
oklch(27% 0.002 325.6)
#434043 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) | #404143 | 0.006 |
| Deuteranopia (no green cones) | #404143 | 0.006 |
| Tritanopia (no blue cones) | #434041 | 0.003 |
| Achromatopsia (no color) | #414141 | 0.006 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
This color is close to neutral, so it has no meaningful hue to rotate. Hue harmonies are omitted.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #434043, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.012
- Onyx #343A40 ΔE 0.033
- Charcoal #264653 ΔE 0.045
- Dark Grey Blue #29465B ΔE 0.050
- Dark Slate Gray #2F4F4F ΔE 0.050
- Dark Blue Grey #1F3B4D ΔE 0.059
- Gunmetal #293241 ΔE 0.066
- Purple Brown #673A3F ΔE 0.067
Use #434043 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.