#433E73
Closest named color: Dark Slate Blue (#483D8B). oklch(39.5% 0.088 286), rgb(67, 62, 115).
Aa
White text reads best on this color (9.65:1).
About this color
#433E73 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.088 and its hue 286°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.042 away. White text reads best on it, at 9.65:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.17:1 |
| White text | 9.65:1 |
Values
| HEX | #433E73 |
| RGB | rgb(67, 62, 115) |
| HSL | hsl(246, 30%, 35%) |
| OKLCH | oklch(39.5% 0.088 286) |
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 #433E73 | 9.65:1 | AAA | Lc -96.5 | Preferred for body text |
| Black text on #433E73 | 2.17:1 | Fails | Lc 11.7 | Not readable |
| #433E73 text on white | 9.65:1 | AAA | Lc 92.3 | Preferred for body text |
| #433E73 text on black | 2.17:1 | Fails | Lc -10.2 | 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
#F5F5FB
oklch(97.2% 0.008 286.3)
-
Step 100
100
#E8E8F6
oklch(93.5% 0.019 286)
-
Step 200
200
#D6D6F1
oklch(88.4% 0.037 285.6)
-
Step 300
300
#BCBBEA
oklch(80.9% 0.066 285.8)
-
Step 400
400
#9B97DF
oklch(70.8% 0.104 285.9)
-
Step 500
500
#837BD6
oklch(63% 0.134 285.9)
-
Step 600
600
#6E63C4
oklch(55.7% 0.146 285.8)
-
Step 700
700
#5C51A9
oklch(49.1% 0.136 285.9)
-
Step 800
800
#4B4389
oklch(42.7% 0.112 285.8)
-
Step 900
900 (this color)
#433E73
oklch(39.5% 0.088 286)
-
Step 950
950
#242240
oklch(27% 0.055 285.1)
#433E73 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) | #2B4675 | 0.038 |
| Deuteranopia (no green cones) | #2A4372 | 0.037 |
| Tritanopia (no blue cones) | #354953 | 0.075 |
| Achromatopsia (no color) | #454545 | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #433E73
#433E73
oklch(39.5% 0.088 286)
- #4D4900
#4D4900
oklch(39.7% 0.085 106.1)
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 #433E73, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.042
- Blueberry #464196 ΔE 0.058
- Twilight Blue #0A437A ΔE 0.061
- Cobalt #1E488F ΔE 0.064
- Dark Grey Blue #29465B ΔE 0.065
- Twilight #4E518B ΔE 0.065
- Light Navy #155084 ΔE 0.068
- Dusk #4E5481 ΔE 0.068
Use #433E73 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.