#43434F
Closest named color: Charcoal Grey (#3C4142). oklch(38.8% 0.02 285.4), rgb(67, 67, 79).
Aa
White text reads best on this color (9.74:1).
About this color
#43434F is a dark close to neutral grey. In OKLCH its lightness is 39%, its chroma 0.020. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.026 away. White text reads best on it, at 9.74:1.
| Hue family | Neutrals |
| Lightness | dark (39%) |
| Chroma | close to neutral grey (0.020) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.15:1 |
| White text | 9.74:1 |
Values
| HEX | #43434F |
| RGB | rgb(67, 67, 79) |
| HSL | hsl(240, 8%, 29%) |
| OKLCH | oklch(38.8% 0.02 285.4) |
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 #43434F | 9.74:1 | AAA | Lc -96.8 | Preferred for body text |
| Black text on #43434F | 2.15:1 | Fails | Lc 11.3 | Not readable |
| #43434F text on white | 9.74:1 | AAA | Lc 92.6 | Preferred for body text |
| #43434F text on black | 2.15:1 | 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
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#E9E9ED
oklch(93.5% 0.005 286.3)
-
Step 200
200
#D8D8DF
oklch(88.4% 0.01 286.2)
-
Step 300
300
#BFBFCA
oklch(80.8% 0.015 286.1)
-
Step 400
400
#9F9FB0
oklch(70.8% 0.025 285.8)
-
Step 500
500
#87879C
oklch(63.1% 0.031 285.5)
-
Step 600
600
#717187
oklch(55.7% 0.034 285.2)
-
Step 700
700
#5F5E72
oklch(49% 0.032 287.5)
-
Step 800
800
#4D4D5D
oklch(42.6% 0.026 285.2)
-
Step 900
900 (this color)
#43434F
oklch(38.8% 0.02 285.4)
-
Step 950
950
#26262D
oklch(27.2% 0.013 285.5)
#43434F 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) | #404450 | 0.005 |
| Deuteranopia (no green cones) | #40444F | 0.006 |
| Tritanopia (no blue cones) | #414547 | 0.018 |
| Achromatopsia (no color) | #444444 | 0.020 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #43434F
#43434F
oklch(38.8% 0.02 285.4)
- #464539
#464539
oklch(38.8% 0.02 103.3)
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 #43434F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.026
- Dark Grey Blue #29465B ΔE 0.039
- Charcoal #264653 ΔE 0.040
- Onyx #343A40 ΔE 0.044
- Dark Slate Gray #2F4F4F ΔE 0.045
- Dark Blue Grey #1F3B4D ΔE 0.061
- Dark Teal #014D4E ΔE 0.068
- Purple Brown #673A3F ΔE 0.069
Use #43434F 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.