#433E66
Closest named color: Dark Grey Blue (#29465B). oklch(38.7% 0.067 288.6), rgb(67, 62, 102).
Aa
White text reads best on this color (9.90:1).
About this color
#433E66 is a dark, muted purple. In OKLCH its lightness is 39%, its chroma 0.067 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.050 away. White text reads best on it, at 9.90:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.11:1 |
| White text | 9.90:1 |
Values
| HEX | #433E66 |
| RGB | rgb(67, 62, 102) |
| HSL | hsl(248, 24%, 32%) |
| OKLCH | oklch(38.7% 0.067 288.6) |
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 #433E66 | 9.90:1 | AAA | Lc -97.1 | Preferred for body text |
| Black text on #433E66 | 2.11:1 | Fails | Lc 11.0 | Not readable |
| #433E66 text on white | 9.90:1 | AAA | Lc 92.9 | Preferred for body text |
| #433E66 text on black | 2.11:1 | Fails | Lc -9.5 | 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E9E8F3
oklch(93.5% 0.015 290.3)
-
Step 200
200
#D8D7EB
oklch(88.6% 0.027 288.1)
-
Step 300
300
#BFBCE0
oklch(80.9% 0.05 289)
-
Step 400
400
#9E99D0
oklch(70.7% 0.08 288.3)
-
Step 500
500
#877FC4
oklch(63.1% 0.103 288.4)
-
Step 600
600
#7167B0
oklch(55.5% 0.111 288.5)
-
Step 700
700
#5F5598
oklch(49% 0.105 288.8)
-
Step 800
800
#4E467B
oklch(42.7% 0.086 289.1)
-
Step 900
900 (this color)
#433E66
oklch(38.7% 0.067 288.6)
-
Step 950
950
#26233A
oklch(27.1% 0.042 289.2)
#433E66 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) | #324468 | 0.029 |
| Deuteranopia (no green cones) | #324265 | 0.028 |
| Tritanopia (no blue cones) | #3A454D | 0.056 |
| Achromatopsia (no color) | #434343 | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #433E66
#433E66
oklch(38.7% 0.067 288.6)
- #474718
#474718
oklch(38.7% 0.067 109.2)
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 #433E66, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.050
- Charcoal #264653 ΔE 0.062
- Dark Slate Blue #483D8B ΔE 0.064
- Twilight Blue #0A437A ΔE 0.067
- Charcoal Grey #3C4142 ΔE 0.068
- Prussian Blue #1D3557 ΔE 0.070
- Dark Blue Grey #1F3B4D ΔE 0.071
- Onyx #343A40 ΔE 0.071
Use #433E66 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.