#433A40
Closest named color: Charcoal Grey (#3C4142). oklch(36% 0.016 338.1), rgb(67, 58, 64).
Aa
White text reads best on this color (10.94:1).
About this color
#433A40 is a dark close to neutral grey. In OKLCH its lightness is 36%, its chroma 0.016. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.024 away. White text reads best on it, at 10.94:1.
| Hue family | Neutrals |
| Lightness | dark (36%) |
| Chroma | close to neutral grey (0.016) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.91:1 |
| White text | 10.94:1 |
Values
| HEX | #433A40 |
| RGB | rgb(67, 58, 64) |
| HSL | hsl(320, 7%, 25%) |
| OKLCH | oklch(36% 0.016 338.1) |
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 #433A40 | 10.94:1 | AAA | Lc -99.2 | Preferred for body text |
| Black text on #433A40 | 1.91:1 | Fails | Lc 8.5 | Not readable |
| #433A40 text on white | 10.94:1 | AAA | Lc 95.4 | Preferred for body text |
| #433A40 text on black | 1.91:1 | 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
#EBE9EA
oklch(93.6% 0.003 345.2)
-
Step 200
200
#DCD7DA
oklch(88.4% 0.007 340.4)
-
Step 300
300
#C6BEC3
oklch(81% 0.011 339.4)
-
Step 400
400
#A99CA5
oklch(70.7% 0.02 336.7)
-
Step 500
500
#94848F
oklch(63.1% 0.025 337.1)
-
Step 600
600
#7E6E79
oklch(55.7% 0.026 337.3)
-
Step 700
700
#6B5C66
oklch(49.3% 0.025 338.2)
-
Step 800
800
#574B53
oklch(42.8% 0.02 338.2)
-
Step 900
900 (this color)
#433A40
oklch(36% 0.016 338.1)
-
Step 950
950
#2A2528
oklch(27.1% 0.009 341)
#433A40 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) | #3A3C40 | 0.016 |
| Deuteranopia (no green cones) | #3C3D40 | 0.015 |
| Tritanopia (no blue cones) | #443A3C | 0.007 |
| Achromatopsia (no color) | #3C3C3C | 0.016 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #433A40
#433A40
oklch(36% 0.016 338.1)
- #36403A
#36403A
oklch(36% 0.017 159.1)
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 #433A40, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.024
- Onyx #343A40 ΔE 0.026
- Gunmetal #293241 ΔE 0.054
- Charcoal #264653 ΔE 0.054
- Dark Blue Grey #1F3B4D ΔE 0.056
- Dark Grey Blue #29465B ΔE 0.058
- Space Cadet #2B2D42 ΔE 0.064
- Dark Slate Gray #2F4F4F ΔE 0.067
Use #433A40 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.