#433663
Closest named color: Prussian Blue (#1D3557). oklch(36.8% 0.077 295.7), rgb(67, 54, 99).
Aa
White text reads best on this color (10.78:1).
About this color
#433663 is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.077 and its hue 296°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.063 away. White text reads best on it, at 10.78:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.077) |
| Temperature | in between |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.94:1 |
| White text | 10.78:1 |
Values
| HEX | #433663 |
| RGB | rgb(67, 54, 99) |
| HSL | hsl(257, 29%, 30%) |
| OKLCH | oklch(36.8% 0.077 295.7) |
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 #433663 | 10.78:1 | AAA | Lc -98.8 | Preferred for body text |
| Black text on #433663 | 1.94:1 | Fails | Lc 9.0 | Not readable |
| #433663 text on white | 10.78:1 | AAA | Lc 94.9 | Preferred for body text |
| #433663 text on black | 1.94:1 | Fails | Lc -7.7 | 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
#F6F4FA
oklch(97% 0.008 301.4)
-
Step 100
100
#EAE8F4
oklch(93.6% 0.016 293.7)
-
Step 200
200
#DAD5EC
oklch(88.4% 0.032 295.7)
-
Step 300
300
#C3BAE2
oklch(80.9% 0.057 295.4)
-
Step 400
400
#A595D4
oklch(70.7% 0.092 295.6)
-
Step 500
500
#907AC8
oklch(63.2% 0.117 295.9)
-
Step 600
600
#7A61B5
oklch(55.5% 0.128 295.6)
-
Step 700
700
#67509C
oklch(49.1% 0.119 295.6)
-
Step 800
800
#54427E
oklch(42.7% 0.098 295.8)
-
Step 900
900 (this color)
#433663
oklch(36.8% 0.077 295.7)
-
Step 950
950
#28213B
oklch(26.9% 0.048 295.4)
#433663 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) | #293E65 | 0.044 |
| Deuteranopia (no green cones) | #2B3D62 | 0.041 |
| Tritanopia (no blue cones) | #3C3E47 | 0.062 |
| Achromatopsia (no color) | #3D3D3D | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #433663
#433663
oklch(36.8% 0.077 295.7)
- #3E440B
#3E440B
oklch(36.9% 0.077 115.6)
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 #433663, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.063
- Dark Grey Blue #29465B ΔE 0.064
- Dark Slate Blue #483D8B ΔE 0.069
- Dark Blue Grey #1F3B4D ΔE 0.071
- Onyx #343A40 ΔE 0.072
- Charcoal #264653 ΔE 0.074
- Twilight Blue #0A437A ΔE 0.075
- Marine Blue #01386A ΔE 0.076
Use #433663 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.