#63419B
Closest named color: Rebecca Purple (#663399). oklch(46% 0.141 298), rgb(99, 65, 155).
Aa
White text reads best on this color (7.60:1).
About this color
#63419B is a medium-dark, vivid purple. In OKLCH its lightness is 46%, its chroma 0.141 and its hue 298°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.030 away. White text reads best on it, at 7.60:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.141) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.75:1 |
| White text | 7.60:1 |
Values
| HEX | #63419B |
| RGB | rgb(99, 65, 155) |
| HSL | hsl(263, 41%, 43%) |
| OKLCH | oklch(46% 0.141 298) |
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 #63419B | 7.60:1 | AAA | Lc -90.9 | Preferred for body text |
| Black text on #63419B | 2.75:1 | Fails | Lc 17.9 | Dividers and decoration only |
| #63419B text on white | 7.60:1 | AAA | Lc 86.1 | Fine for body text |
| #63419B text on black | 2.75:1 | Fails | Lc -15.9 | Dividers and decoration only |
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 700.
-
Step 50
50
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#EBE7F6
oklch(93.5% 0.021 298.2)
-
Step 200
200
#DCD4F0
oklch(88.5% 0.039 298.7)
-
Step 300
300
#C6B8E8
oklch(81% 0.068 298.2)
-
Step 400
400
#A991DC
oklch(70.6% 0.11 298.3)
-
Step 500
500
#9474D2
oklch(63% 0.14 298)
-
Step 600
600
#7F5BBF
oklch(55.5% 0.152 297.9)
-
Step 700
700 (this color)
#63419B
oklch(46% 0.141 298)
-
Step 800
800
#583D86
oklch(42.7% 0.118 298.3)
-
Step 900
900
#48356B
oklch(37.7% 0.091 298.1)
-
Step 950
950
#2A1F3F
oklch(26.9% 0.059 298.2)
#63419B 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) | #15549E | 0.101 |
| Deuteranopia (no green cones) | #235399 | 0.093 |
| Tritanopia (no blue cones) | #565467 | 0.111 |
| Achromatopsia (no color) | #545454 | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63419B
#63419B
oklch(46% 0.141 298)
- #535F00
#535F00
oklch(45.9% 0.107 117.9)
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 #63419B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.030
- Blueberry #464196 ΔE 0.051
- Dark Slate Blue #483D8B ΔE 0.056
- Twilight #4E518B ΔE 0.060
- Bluey Purple #6241C7 ΔE 0.070
- Blue With A Hint Of Purple #533CC6 ΔE 0.076
- Dusk #4E5481 ΔE 0.077
- Iris #6258C4 ΔE 0.081
Use #63419B 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.