#633066
Closest named color: Grape Purple (#5D1451). oklch(39.9% 0.106 325.2), rgb(99, 48, 102).
Aa
White text reads best on this color (9.78:1).
About this color
#633066 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.106 and its hue 325°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.064 away. White text reads best on it, at 9.78:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.106) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 2.14:1 |
| White text | 9.78:1 |
Values
| HEX | #633066 |
| RGB | rgb(99, 48, 102) |
| HSL | hsl(297, 36%, 29%) |
| OKLCH | oklch(39.9% 0.106 325.2) |
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 #633066 | 9.78:1 | AAA | Lc -96.6 | Preferred for body text |
| Black text on #633066 | 2.14:1 | Fails | Lc 11.6 | Not readable |
| #633066 text on white | 9.78:1 | AAA | Lc 92.3 | Preferred for body text |
| #633066 text on black | 2.14:1 | Fails | Lc -10.1 | 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
#F9F3F9
oklch(97% 0.01 325.7)
-
Step 100
100
#F2E5F2
oklch(93.6% 0.022 325.8)
-
Step 200
200
#E9D0E9
oklch(88.6% 0.043 325.9)
-
Step 300
300
#DCAFDD
oklch(80.9% 0.08 325.6)
-
Step 400
400
#C884CC
oklch(70.7% 0.126 324.9)
-
Step 500
500
#B962BE
oklch(63.1% 0.162 325.2)
-
Step 600
600
#A446AA
oklch(55.6% 0.175 325.2)
-
Step 700
700
#8D3692
oklch(49.1% 0.164 325.5)
-
Step 800
800
#722E77
oklch(42.7% 0.136 324.9)
-
Step 900
900 (this color)
#633066
oklch(39.9% 0.106 325.2)
-
Step 950
950
#361938
oklch(26.9% 0.067 324.8)
#633066 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) | #2A4068 | 0.102 |
| Deuteranopia (no green cones) | #394664 | 0.091 |
| Tritanopia (no blue cones) | #653646 | 0.062 |
| Achromatopsia (no color) | #444444 | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #633066
#633066
oklch(39.9% 0.106 325.2)
- #18551F
#18551F
oklch(39.7% 0.105 145.1)
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 #633066, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.064
- Velvet #750851 ΔE 0.070
- Rich Purple #720058 ΔE 0.071
- Purple Brown #673A3F ΔE 0.079
- Dark Slate Blue #483D8B ΔE 0.081
- Brownish Purple #76424E ΔE 0.083
- Rebecca Purple #663399 ΔE 0.084
- Red Purple #820747 ΔE 0.089
Use #633066 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.