#433278
Closest named color: Dark Slate Blue (#483D8B). oklch(37.5% 0.115 291), rgb(67, 50, 120).
Aa
White text reads best on this color (10.68:1).
About this color
#433278 is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.115 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.042 away. White text reads best on it, at 10.68:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.115) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.96:1 |
| White text | 10.68:1 |
Values
| HEX | #433278 |
| RGB | rgb(67, 50, 120) |
| HSL | hsl(255, 41%, 33%) |
| OKLCH | oklch(37.5% 0.115 291) |
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 #433278 | 10.68:1 | AAA | Lc -98.5 | Preferred for body text |
| Black text on #433278 | 1.96:1 | Fails | Lc 9.4 | Not readable |
| #433278 text on white | 10.68:1 | AAA | Lc 94.5 | Preferred for body text |
| #433278 text on black | 1.96:1 | Fails | Lc -8.1 | 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 900.
-
Step 50
50
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#E9E7FA
oklch(93.5% 0.026 290.7)
-
Step 200
200
#D9D4F7
oklch(88.5% 0.048 291.9)
-
Step 300
300
#C0B7F5
oklch(80.8% 0.087 291)
-
Step 400
400
#A290EF
oklch(70.8% 0.137 291.2)
-
Step 500
500
#8C71EA
oklch(63.1% 0.176 290.8)
-
Step 600
600
#7855D8
oklch(55.6% 0.192 291.2)
-
Step 700
700
#6545BB
oklch(49.1% 0.177 290.9)
-
Step 800
800
#523998
oklch(42.7% 0.148 290.9)
-
Step 900
900 (this color)
#433278
oklch(37.5% 0.115 291)
-
Step 950
950
#271E47
oklch(26.9% 0.074 290.7)
#433278 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) | #0C3F7A | 0.069 |
| Deuteranopia (no green cones) | #103D76 | 0.067 |
| Tritanopia (no blue cones) | #344150 | 0.093 |
| Achromatopsia (no color) | #3E3E3E | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #433278
#433278
oklch(37.5% 0.115 291)
- #434500
#434500
oklch(37.6% 0.083 111.6)
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 #433278, 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 0.061
- Twilight Blue #0A437A ΔE 0.074
- Cobalt #1E488F ΔE 0.076
- Indigo #4B0082 ΔE 0.079
- Marine Blue #01386A ΔE 0.081
- Prussian Blue #1D3557 ΔE 0.084
- Rebecca Purple #663399 ΔE 0.085
Use #433278 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.