#433D87
Closest named color: Dark Slate Blue (#483D8B). oklch(40.7% 0.12 283.4), rgb(67, 61, 135).
Aa
White text reads best on this color (9.30:1).
About this color
#433D87 is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.120 and its hue 283°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.011 away. White text reads best on it, at 9.30:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.120) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.25:1 |
| White text | 9.30:1 |
Values
| HEX | #433D87 |
| RGB | rgb(67, 61, 135) |
| HSL | hsl(245, 38%, 38%) |
| OKLCH | oklch(40.7% 0.12 283.4) |
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 #433D87 | 9.30:1 | AAA | Lc -95.6 | Preferred for body text |
| Black text on #433D87 | 2.25:1 | Fails | Lc 12.7 | Not readable |
| #433D87 text on white | 9.30:1 | AAA | Lc 91.3 | Preferred for body text |
| #433D87 text on black | 2.25:1 | Fails | Lc -11.1 | 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 800.
-
Step 50
50
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E8E8F7
oklch(93.5% 0.02 286)
-
Step 200
200
#D5D6F3
oklch(88.4% 0.04 284)
-
Step 300
300
#BABBED
oklch(80.8% 0.07 283.8)
-
Step 400
400
#9797E4
oklch(70.7% 0.112 283.2)
-
Step 500
500
#7F7BDC
oklch(63% 0.143 283.4)
-
Step 600
600
#6A62CA
oklch(55.6% 0.156 283.6)
-
Step 700
700
#5851AE
oklch(49.1% 0.144 283.1)
-
Step 800
800 (this color)
#433D87
oklch(40.7% 0.12 283.4)
-
Step 900
900
#3C3971
oklch(37.7% 0.093 283.4)
-
Step 950
950
#232242
oklch(27.1% 0.058 283.2)
#433D87 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) | #16498A | 0.056 |
| Deuteranopia (no green cones) | #114485 | 0.057 |
| Tritanopia (no blue cones) | #2A4D5C | 0.101 |
| Achromatopsia (no color) | #474747 | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #433D87
#433D87
oklch(40.7% 0.12 283.4)
- #524B00
#524B00
oklch(40.7% 0.086 103.4)
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 #433D87, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.011
- Blueberry #464196 ΔE 0.027
- Cobalt #1E488F ΔE 0.050
- Twilight #4E518B ΔE 0.059
- Dusk Blue #26538D ΔE 0.065
- Twilight Blue #0A437A ΔE 0.066
- Light Navy #155084 ΔE 0.068
- Rebecca Purple #663399 ΔE 0.071
Use #433D87 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.