#533B8F
Closest named color: Dark Slate Blue (#483D8B). oklch(42.4% 0.133 293), rgb(83, 59, 143).
Aa
White text reads best on this color (8.78:1).
About this color
#533B8F is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.133 and its hue 293°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.020 away. White text reads best on it, at 8.78:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.133) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.39:1 |
| White text | 8.78:1 |
Values
| HEX | #533B8F |
| RGB | rgb(83, 59, 143) |
| HSL | hsl(257, 42%, 40%) |
| OKLCH | oklch(42.4% 0.133 293) |
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 #533B8F | 8.78:1 | AAA | Lc -94.3 | Preferred for body text |
| Black text on #533B8F | 2.39:1 | Fails | Lc 14.2 | Not readable |
| #533B8F text on white | 8.78:1 | AAA | Lc 89.8 | Fine for body text |
| #533B8F text on black | 2.39:1 | Fails | Lc -12.5 | 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 800.
-
Step 50
50
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#EAE7F8
oklch(93.5% 0.023 294.1)
-
Step 200
200
#DAD4F4
oklch(88.5% 0.044 294.1)
-
Step 300
300
#C2B8EF
oklch(81% 0.077 292.9)
-
Step 400
400
#A491E7
oklch(70.7% 0.124 293.1)
-
Step 500
500
#8F73E0
oklch(63.1% 0.16 293.1)
-
Step 600
600
#7A59CD
oklch(55.6% 0.172 293.1)
-
Step 700
700
#6748B2
oklch(49.1% 0.161 293)
-
Step 800
800 (this color)
#533B8F
oklch(42.4% 0.133 293)
-
Step 900
900
#453473
oklch(37.7% 0.104 293.2)
-
Step 950
950
#281F43
oklch(27% 0.065 293)
#533B8F 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) | #0A4C92 | 0.086 |
| Deuteranopia (no green cones) | #14498D | 0.082 |
| Tritanopia (no blue cones) | #434D5F | 0.107 |
| Achromatopsia (no color) | #4B4B4B | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #533B8F
#533B8F
oklch(42.4% 0.133 293)
- #4F5300
#4F5300
oklch(42.4% 0.095 113)
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 #533B8F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.020
- Blueberry #464196 ΔE 0.027
- Rebecca Purple #663399 ΔE 0.041
- Twilight #4E518B ΔE 0.059
- Cobalt #1E488F ΔE 0.074
- Dusk #4E5481 ΔE 0.075
- Dusk Blue #26538D ΔE 0.082
- Chrysanthemum #560BAD ΔE 0.085
Use #533B8F 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.