#43393F
Closest named color: Onyx (#343A40). oklch(35.7% 0.017 341.3), rgb(67, 57, 63).
Aa
White text reads best on this color (11.07:1).
About this color
#43393F is a dark close to neutral grey. In OKLCH its lightness is 36%, its chroma 0.017. It has too little chroma to lean warm or cool. The nearest named color is Onyx (#343A40), ΔE 0.025 away. White text reads best on it, at 11.07:1.
| Hue family | Neutrals |
| Lightness | dark (36%) |
| Chroma | close to neutral grey (0.017) |
| Temperature | neutral |
| Nearest name | Onyx (#343A40) |
| Black text | 1.89:1 |
| White text | 11.07:1 |
Values
| HEX | #43393F |
| RGB | rgb(67, 57, 63) |
| HSL | hsl(324, 8%, 24%) |
| OKLCH | oklch(35.7% 0.017 341.3) |
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 #43393F | 11.07:1 | AAA | Lc -99.4 | Preferred for body text |
| Black text on #43393F | 1.89:1 | Fails | Lc 8.3 | Not readable |
| #43393F text on white | 11.07:1 | AAA | Lc 95.6 | Preferred for body text |
| #43393F text on black | 1.89:1 | Fails | Lc 0.0 | 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
#ECE9EA
oklch(93.7% 0.003 354.7)
-
Step 200
200
#DDD7DA
oklch(88.5% 0.008 345.4)
-
Step 300
300
#C7BDC3
oklch(80.8% 0.014 340.6)
-
Step 400
400
#AA9CA4
oklch(70.7% 0.02 342.2)
-
Step 500
500
#95848E
oklch(63.2% 0.025 341.7)
-
Step 600
600
#806D78
oklch(55.6% 0.029 342.4)
-
Step 700
700
#6C5B65
oklch(49.1% 0.027 342)
-
Step 800
800
#584A52
oklch(42.6% 0.023 342.8)
-
Step 900
900 (this color)
#43393F
oklch(35.7% 0.017 341.3)
-
Step 950
950
#2A2428
oklch(26.9% 0.011 338.1)
#43393F 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) | #393B3F | 0.018 |
| Deuteranopia (no green cones) | #3C3C3F | 0.015 |
| Tritanopia (no blue cones) | #44393B | 0.007 |
| Achromatopsia (no color) | #3C3C3C | 0.017 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #43393F
#43393F
oklch(35.7% 0.017 341.3)
- #353F3A
#353F3A
oklch(35.7% 0.016 163.9)
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 #43393F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.025
- Charcoal Grey #3C4142 ΔE 0.026
- Gunmetal #293241 ΔE 0.053
- Dark Blue Grey #1F3B4D ΔE 0.056
- Charcoal #264653 ΔE 0.056
- Dark Grey Blue #29465B ΔE 0.061
- Space Cadet #2B2D42 ΔE 0.062
- Purple Brown #673A3F ΔE 0.069
Use #43393F 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.