#633665
Closest named color: Purple Brown (#673A3F). oklch(40.8% 0.094 325.6), rgb(99, 54, 101).
Aa
White text reads best on this color (9.34:1).
About this color
#633665 is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.094 and its hue 326°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.069 away. White text reads best on it, at 9.34:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.094) |
| Temperature | in between |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.24:1 |
| White text | 9.34:1 |
Values
| HEX | #633665 |
| RGB | rgb(99, 54, 101) |
| HSL | hsl(297, 30%, 30%) |
| OKLCH | oklch(40.8% 0.094 325.6) |
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 #633665 | 9.34:1 | AAA | Lc -95.7 | Preferred for body text |
| Black text on #633665 | 2.24:1 | Fails | Lc 12.6 | Not readable |
| #633665 text on white | 9.34:1 | AAA | Lc 91.3 | Preferred for body text |
| #633665 text on black | 2.24:1 | Fails | Lc -11.0 | 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
#F0E6F0
oklch(93.6% 0.017 325.7)
-
Step 200
200
#E4D3E4
oklch(88.6% 0.029 325.8)
-
Step 300
300
#D4B5D4
oklch(80.9% 0.055 326.1)
-
Step 400
400
#BD8EBE
oklch(70.7% 0.086 325.8)
-
Step 500
500
#AC71AE
oklch(63.2% 0.111 325.7)
-
Step 600
600
#97589A
oklch(55.7% 0.122 325.4)
-
Step 700
700
#814883
oklch(49.2% 0.113 325.9)
-
Step 800
800 (this color)
#633665
oklch(40.8% 0.094 325.6)
-
Step 900
900
#553356
oklch(37.6% 0.072 325.9)
-
Step 950
950
#321E33
oklch(27% 0.047 325.1)
#633665 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) | #314367 | 0.089 |
| Deuteranopia (no green cones) | #3E4964 | 0.080 |
| Tritanopia (no blue cones) | #653B48 | 0.055 |
| Achromatopsia (no color) | #474747 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #633665
#633665
oklch(40.8% 0.094 325.6)
- #235728
#235728
oklch(40.9% 0.094 145.4)
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 #633665, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.069
- Brownish Purple #76424E ΔE 0.071
- Grape Purple #5D1451 ΔE 0.077
- Dark Slate Blue #483D8B ΔE 0.080
- Velvet #750851 ΔE 0.080
- Rich Purple #720058 ΔE 0.083
- Rebecca Purple #663399 ΔE 0.088
- Dusk #4E5481 ΔE 0.088
Use #633665 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.