#433D47
Closest named color: Charcoal Grey (#3C4142). oklch(37% 0.019 312), rgb(67, 61, 71).
Aa
White text reads best on this color (10.51:1).
About this color
#433D47 is a dark close to neutral grey. In OKLCH its lightness is 37%, its chroma 0.019. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.021 away. White text reads best on it, at 10.51:1.
| Hue family | Neutrals |
| Lightness | dark (37%) |
| Chroma | close to neutral grey (0.019) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.99:1 |
| White text | 10.51:1 |
Values
| HEX | #433D47 |
| RGB | rgb(67, 61, 71) |
| HSL | hsl(276, 8%, 26%) |
| OKLCH | oklch(37% 0.019 312) |
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 #433D47 | 10.51:1 | AAA | Lc -98.4 | Preferred for body text |
| Black text on #433D47 | 1.99:1 | Fails | Lc 9.5 | Not readable |
| #433D47 text on white | 10.51:1 | AAA | Lc 94.4 | Preferred for body text |
| #433D47 text on black | 1.99:1 | Fails | Lc -8.2 | 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
#EBE9EC
oklch(93.6% 0.005 314.8)
-
Step 200
200
#DBD8DD
oklch(88.6% 0.007 312.3)
-
Step 300
300
#C4BEC7
oklch(80.9% 0.014 314.7)
-
Step 400
400
#A59DAB
oklch(70.7% 0.022 311)
-
Step 500
500
#8F8596
oklch(63.1% 0.028 311.6)
-
Step 600
600
#796E81
oklch(55.5% 0.032 311.1)
-
Step 700
700
#665C6D
oklch(49% 0.029 311.4)
-
Step 800
800
#534B59
oklch(42.6% 0.025 310.8)
-
Step 900
900 (this color)
#433D47
oklch(37% 0.019 312)
-
Step 950
950
#28252B
oklch(27% 0.012 308)
#433D47 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) | #3C3F47 | 0.013 |
| Deuteranopia (no green cones) | #3D3F47 | 0.011 |
| Tritanopia (no blue cones) | #433E40 | 0.014 |
| Achromatopsia (no color) | #3F3F3F | 0.019 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #433D47
#433D47
oklch(37% 0.019 312)
- #3C4238
#3C4238
oklch(37% 0.019 132.7)
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 #433D47, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.021
- Onyx #343A40 ΔE 0.030
- Charcoal #264653 ΔE 0.047
- Dark Grey Blue #29465B ΔE 0.049
- Dark Blue Grey #1F3B4D ΔE 0.055
- Dark Slate Gray #2F4F4F ΔE 0.059
- Gunmetal #293241 ΔE 0.059
- Purple Brown #673A3F ΔE 0.067
Use #433D47 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.