#433B83
Closest named color: Dark Slate Blue (#483D8B). oklch(40% 0.117 284.9), rgb(67, 59, 131).
Aa
White text reads best on this color (9.58:1).
About this color
#433B83 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.117 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.017 away. White text reads best on it, at 9.58:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.117) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.19:1 |
| White text | 9.58:1 |
Values
| HEX | #433B83 |
| RGB | rgb(67, 59, 131) |
| HSL | hsl(247, 38%, 37%) |
| OKLCH | oklch(40% 0.117 284.9) |
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 #433B83 | 9.58:1 | AAA | Lc -96.2 | Preferred for body text |
| Black text on #433B83 | 2.19:1 | Fails | Lc 12.0 | Not readable |
| #433B83 text on white | 9.58:1 | AAA | Lc 92.0 | Preferred for body text |
| #433B83 text on black | 2.19:1 | Fails | Lc -10.4 | 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
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E7E8FB
oklch(93.6% 0.026 283.5)
-
Step 200
200
#D5D5F9
oklch(88.4% 0.049 285.3)
-
Step 300
300
#BAB9F8
oklch(80.9% 0.088 285)
-
Step 400
400
#9892F4
oklch(70.6% 0.141 285)
-
Step 500
500
#8174EF
oklch(63.1% 0.178 284.9)
-
Step 600
600
#6C59DE
oklch(55.6% 0.194 284.6)
-
Step 700
700
#5B48C1
oklch(49.2% 0.181 284.7)
-
Step 800
800
#4A3C9C
oklch(42.7% 0.15 284.8)
-
Step 900
900 (this color)
#433B83
oklch(40% 0.117 284.9)
-
Step 950
950
#241F49
oklch(27% 0.075 285.6)
#433B83 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) | #164785 | 0.057 |
| Deuteranopia (no green cones) | #134381 | 0.058 |
| Tritanopia (no blue cones) | #2D4B59 | 0.099 |
| Achromatopsia (no color) | #454545 | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #433B83
#433B83
oklch(40% 0.117 284.9)
- #4F4A00
#4F4A00
oklch(40.1% 0.085 105.2)
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 #433B83, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.017
- Blueberry #464196 ΔE 0.034
- Cobalt #1E488F ΔE 0.055
- Twilight #4E518B ΔE 0.065
- Twilight Blue #0A437A ΔE 0.066
- Dusk Blue #26538D ΔE 0.070
- Light Navy #155084 ΔE 0.071
- Rebecca Purple #663399 ΔE 0.074
Use #433B83 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.