#533B66
Closest named color: Dark Slate Blue (#483D8B). oklch(39.8% 0.076 309), rgb(83, 59, 102).
Aa
White text reads best on this color (9.60:1).
About this color
#533B66 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.076 and its hue 309°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.065 away. White text reads best on it, at 9.60:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.076) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.18:1 |
| White text | 9.60:1 |
Values
| HEX | #533B66 |
| RGB | rgb(83, 59, 102) |
| HSL | hsl(273, 27%, 32%) |
| OKLCH | oklch(39.8% 0.076 309) |
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 #533B66 | 9.60:1 | AAA | Lc -96.4 | Preferred for body text |
| Black text on #533B66 | 2.18:1 | Fails | Lc 11.8 | Not readable |
| #533B66 text on white | 9.60:1 | AAA | Lc 92.2 | Preferred for body text |
| #533B66 text on black | 2.18:1 | Fails | Lc -10.3 | 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
#F7F4F9
oklch(97.1% 0.007 312.3)
-
Step 100
100
#EDE7F2
oklch(93.6% 0.016 310.1)
-
Step 200
200
#DFD4E9
oklch(88.5% 0.031 309.1)
-
Step 300
300
#CBB7DD
oklch(80.8% 0.057 308.8)
-
Step 400
400
#B191CC
oklch(70.7% 0.091 308.9)
-
Step 500
500
#9E75BF
oklch(63.1% 0.116 308.8)
-
Step 600
600
#895CAB
oklch(55.6% 0.127 309.1)
-
Step 700
700
#744C93
oklch(49.2% 0.117 308.7)
-
Step 800
800
#5E3E77
oklch(42.6% 0.098 308.7)
-
Step 900
900 (this color)
#533B66
oklch(39.8% 0.076 309)
-
Step 950
950
#2D2038
oklch(27.1% 0.047 308.4)
#533B66 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) | #324468 | 0.056 |
| Deuteranopia (no green cones) | #384565 | 0.051 |
| Tritanopia (no blue cones) | #51414B | 0.055 |
| Achromatopsia (no color) | #454545 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #533B66
#533B66
oklch(39.8% 0.076 309)
- #3A4F20
#3A4F20
oklch(39.8% 0.076 129.3)
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 #533B66, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.065
- Dusk #4E5481 ΔE 0.075
- Dark Grey Blue #29465B ΔE 0.075
- Purple Brown #673A3F ΔE 0.075
- Twilight #4E518B ΔE 0.077
- Dusty Grape #545775 ΔE 0.080
- Charcoal Grey #3C4142 ΔE 0.082
- Blueberry #464196 ΔE 0.082
Use #533B66 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.