#533C91
Closest named color: Dark Slate Blue (#483D8B). oklch(42.7% 0.134 292.2), rgb(83, 60, 145).
Aa
White text reads best on this color (8.66:1).
About this color
#533C91 is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.134 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 0.021 away. White text reads best on it, at 8.66:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.134) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.42:1 |
| White text | 8.66:1 |
Values
| HEX | #533C91 |
| RGB | rgb(83, 60, 145) |
| HSL | hsl(256, 41%, 40%) |
| OKLCH | oklch(42.7% 0.134 292.2) |
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 #533C91 | 8.66:1 | AAA | Lc -94.0 | Preferred for body text |
| Black text on #533C91 | 2.42:1 | Fails | Lc 14.6 | Not readable |
| #533C91 text on white | 8.66:1 | AAA | Lc 89.4 | Fine for body text |
| #533C91 text on black | 2.42:1 | Fails | Lc -12.8 | 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
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#EAE7F8
oklch(93.5% 0.023 294.1)
-
Step 200
200
#D9D4F4
oklch(88.4% 0.044 292.6)
-
Step 300
300
#C1B8F0
oklch(80.9% 0.079 291.9)
-
Step 400
400
#A391E8
oklch(70.7% 0.126 292.4)
-
Step 500
500
#8E73E1
oklch(63.1% 0.161 292.5)
-
Step 600
600
#7959CF
oklch(55.7% 0.175 292.3)
-
Step 700
700
#6648B3
oklch(49.1% 0.162 292.3)
-
Step 800
800 (this color)
#533C91
oklch(42.7% 0.134 292.2)
-
Step 900
900
#443474
oklch(37.7% 0.106 292.1)
-
Step 950
950
#281F44
oklch(27% 0.067 292.5)
#533C91 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) | #094D94 | 0.086 |
| Deuteranopia (no green cones) | #124A8F | 0.082 |
| Tritanopia (no blue cones) | #424E60 | 0.108 |
| Achromatopsia (no color) | #4B4B4B | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #533C91
#533C91
oklch(42.7% 0.134 292.2)
- #515400
#515400
oklch(42.9% 0.095 112.1)
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 #533C91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.021
- Blueberry #464196 ΔE 0.025
- Rebecca Purple #663399 ΔE 0.041
- Twilight #4E518B ΔE 0.057
- Cobalt #1E488F ΔE 0.074
- Dusk #4E5481 ΔE 0.074
- Dusk Blue #26538D ΔE 0.081
- Chrysanthemum #560BAD ΔE 0.084
Use #533C91 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.