#433571
Closest named color: Dark Slate Blue (#483D8B). oklch(37.6% 0.1 291.6), rgb(67, 53, 113).
Aa
White text reads best on this color (10.57:1).
About this color
#433571 is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.100 and its hue 292°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.047 away. White text reads best on it, at 10.57:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.100) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.98:1 |
| White text | 10.57:1 |
Values
| HEX | #433571 |
| RGB | rgb(67, 53, 113) |
| HSL | hsl(254, 36%, 33%) |
| OKLCH | oklch(37.6% 0.1 291.6) |
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 #433571 | 10.57:1 | AAA | Lc -98.3 | Preferred for body text |
| Black text on #433571 | 1.98:1 | Fails | Lc 9.6 | Not readable |
| #433571 text on white | 10.57:1 | AAA | Lc 94.3 | Preferred for body text |
| #433571 text on black | 1.98:1 | Fails | Lc -8.2 | 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
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#EAE8F8
oklch(93.7% 0.022 291.7)
-
Step 200
200
#D9D5F3
oklch(88.5% 0.041 291.7)
-
Step 300
300
#C1B9EE
oklch(81% 0.074 291.6)
-
Step 400
400
#A292E5
oklch(70.7% 0.12 291.9)
-
Step 500
500
#8C75DD
oklch(63% 0.153 291.6)
-
Step 600
600
#775BCB
oklch(55.5% 0.167 291.5)
-
Step 700
700
#654AAF
oklch(49.1% 0.154 292.1)
-
Step 800
800
#523E8E
oklch(42.8% 0.127 291.6)
-
Step 900
900 (this color)
#433571
oklch(37.6% 0.1 291.6)
-
Step 950
950
#272042
oklch(27% 0.062 291.2)
#433571 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) | #1D4073 | 0.057 |
| Deuteranopia (no green cones) | #1F3E70 | 0.054 |
| Tritanopia (no blue cones) | #37414D | 0.082 |
| Achromatopsia (no color) | #3F3F3F | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #433571
#433571
oklch(37.6% 0.1 291.6)
- #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 #433571, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.047
- Blueberry #464196 ΔE 0.067
- Twilight Blue #0A437A ΔE 0.070
- Prussian Blue #1D3557 ΔE 0.075
- Marine Blue #01386A ΔE 0.077
- Cobalt #1E488F ΔE 0.077
- Dark Grey Blue #29465B ΔE 0.078
- Twilight #4E518B ΔE 0.087
Use #433571 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.