#633768
Closest named color: Brownish Purple (#76424E). oklch(41.1% 0.095 323.3), rgb(99, 55, 104).
Aa
White text reads best on this color (9.22:1).
About this color
#633768 is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.095 and its hue 323°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Brownish Purple (#76424E), ΔE 0.073 away. White text reads best on it, at 9.22:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.095) |
| Temperature | in between |
| Nearest name | Brownish Purple (#76424E) |
| Black text | 2.27:1 |
| White text | 9.22:1 |
Values
| HEX | #633768 |
| RGB | rgb(99, 55, 104) |
| HSL | hsl(294, 31%, 31%) |
| OKLCH | oklch(41.1% 0.095 323.3) |
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 #633768 | 9.22:1 | AAA | Lc -95.4 | Preferred for body text |
| Black text on #633768 | 2.27:1 | Fails | Lc 12.9 | Not readable |
| #633768 text on white | 9.22:1 | AAA | Lc 91.0 | Preferred for body text |
| #633768 text on black | 2.27:1 | Fails | Lc -11.3 | 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 800.
-
Step 50
50
#F8F4F8
oklch(97.1% 0.007 325.6)
-
Step 100
100
#EFE6F0
oklch(93.5% 0.016 322.7)
-
Step 200
200
#E4D3E5
oklch(88.6% 0.03 324.2)
-
Step 300
300
#D3B5D6
oklch(80.9% 0.056 323.2)
-
Step 400
400
#BC8EC1
oklch(70.7% 0.089 323.2)
-
Step 500
500
#AB71B1
oklch(63.2% 0.114 323.5)
-
Step 600
600
#95589C
oklch(55.5% 0.123 323.3)
-
Step 700
700
#7F4886
oklch(49.1% 0.114 322.9)
-
Step 800
800 (this color)
#633768
oklch(41.1% 0.095 323.3)
-
Step 900
900
#543358
oklch(37.6% 0.074 323)
-
Step 950
950
#311E34
oklch(26.9% 0.048 321.9)
#633768 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) | #31446A | 0.088 |
| Deuteranopia (no green cones) | #3D4967 | 0.079 |
| Tritanopia (no blue cones) | #653D4A | 0.058 |
| Achromatopsia (no color) | #474747 | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #633768
#633768
oklch(41.1% 0.095 323.3)
- #275726
#275726
oklch(41% 0.094 143.3)
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 #633768, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brownish Purple #76424E ΔE 0.073
- Purple Brown #673A3F ΔE 0.073
- Dark Slate Blue #483D8B ΔE 0.076
- Grape Purple #5D1451 ΔE 0.080
- Velvet #750851 ΔE 0.083
- Rebecca Purple #663399 ΔE 0.083
- Dusk #4E5481 ΔE 0.085
- Twilight #4E518B ΔE 0.085
Use #633768 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.