#63358E
Closest named color: Rebecca Purple (#663399). oklch(43.2% 0.144 304.9), rgb(99, 53, 142).
Aa
White text reads best on this color (8.64:1).
About this color
#63358E is a dark, vivid purple. In OKLCH its lightness is 43%, its chroma 0.144 and its hue 305°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.019 away. White text reads best on it, at 8.64:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | vivid (0.144) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.43:1 |
| White text | 8.64:1 |
Values
| HEX | #63358E |
| RGB | rgb(99, 53, 142) |
| HSL | hsl(271, 46%, 38%) |
| OKLCH | oklch(43.2% 0.144 304.9) |
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 #63358E | 8.64:1 | AAA | Lc -93.8 | Preferred for body text |
| Black text on #63358E | 2.43:1 | Fails | Lc 14.8 | Not readable |
| #63358E text on white | 8.64:1 | AAA | Lc 89.2 | Fine for body text |
| #63358E text on black | 2.43:1 | Fails | Lc -13.0 | 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
#F7F4FC
oklch(97.2% 0.011 303.1)
-
Step 100
100
#EDE6F7
oklch(93.5% 0.024 304.5)
-
Step 200
200
#E0D2F3
oklch(88.5% 0.047 304.6)
-
Step 300
300
#CDB3ED
oklch(80.9% 0.085 305)
-
Step 400
400
#B48AE3
oklch(70.7% 0.133 305)
-
Step 500
500
#A269DB
oklch(63% 0.172 305.1)
-
Step 600
600
#8D4DC9
oklch(55.5% 0.187 304.8)
-
Step 700
700
#783DAE
oklch(49% 0.175 304.8)
-
Step 800
800 (this color)
#63358E
oklch(43.2% 0.144 304.9)
-
Step 900
900
#502E70
oklch(37.7% 0.112 305.4)
-
Step 950
950
#2F1C42
oklch(27.1% 0.071 305.2)
#63358E 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) | #034A91 | 0.119 |
| Deuteranopia (no green cones) | #204C8C | 0.107 |
| Tritanopia (no blue cones) | #5B475C | 0.105 |
| Achromatopsia (no color) | #4C4C4C | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63358E
#63358E
oklch(43.2% 0.144 304.9)
- #435A00
#435A00
oklch(43.3% 0.109 124.9)
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 #63358E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.019
- Dark Slate Blue #483D8B ΔE 0.051
- Blueberry #464196 ΔE 0.057
- Twilight #4E518B ΔE 0.076
- Chrysanthemum #560BAD ΔE 0.084
- Purple #800080 ΔE 0.085
- Grape #7209B7 ΔE 0.086
- Light Eggplant #894585 ΔE 0.090
Use #63358E 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.