#63386D
Closest named color: Dark Slate Blue (#483D8B). oklch(41.6% 0.099 319.9), rgb(99, 56, 109).
Aa
White text reads best on this color (9.06:1).
About this color
#63386D is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.099 and its hue 320°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.070 away. White text reads best on it, at 9.06:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.099) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.31:1 |
| White text | 9.06:1 |
Values
| HEX | #63386D |
| RGB | rgb(99, 56, 109) |
| HSL | hsl(289, 32%, 32%) |
| OKLCH | oklch(41.6% 0.099 319.9) |
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 #63386D | 9.06:1 | AAA | Lc -95.0 | Preferred for body text |
| Black text on #63386D | 2.31:1 | Fails | Lc 13.4 | Not readable |
| #63386D text on white | 9.06:1 | AAA | Lc 90.6 | Preferred for body text |
| #63386D text on black | 2.31:1 | Fails | Lc -11.7 | 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
#F8F4F9
oklch(97.2% 0.008 319.4)
-
Step 100
100
#EFE6F1
oklch(93.5% 0.018 320.1)
-
Step 200
200
#E3D3E7
oklch(88.6% 0.032 319.5)
-
Step 300
300
#D2B5D8
oklch(80.9% 0.058 320.5)
-
Step 400
400
#BA8EC5
oklch(70.7% 0.092 319.5)
-
Step 500
500
#A971B6
oklch(63.2% 0.118 319.9)
-
Step 600
600
#9458A2
oklch(55.7% 0.129 319.8)
-
Step 700
700
#7E488A
oklch(49.2% 0.118 320.1)
-
Step 800
800 (this color)
#63386D
oklch(41.6% 0.099 319.9)
-
Step 900
900
#53335B
oklch(37.6% 0.077 319.4)
-
Step 950
950
#311E35
oklch(27% 0.049 320.5)
#63386D 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) | #30466F | 0.089 |
| Deuteranopia (no green cones) | #3C4A6B | 0.080 |
| Tritanopia (no blue cones) | #643F4D | 0.063 |
| Achromatopsia (no color) | #494949 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63386D
#63386D
oklch(41.6% 0.099 319.9)
- #2B5821
#2B5821
oklch(41.4% 0.098 140.1)
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 #63386D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.070
- Rebecca Purple #663399 ΔE 0.075
- Brownish Purple #76424E ΔE 0.077
- Twilight #4E518B ΔE 0.079
- Purple Brown #673A3F ΔE 0.080
- Dusk #4E5481 ΔE 0.081
- Blueberry #464196 ΔE 0.085
- Grape Purple #5D1451 ΔE 0.085
Use #63386D 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.