#6B63BE
Closest named color: Dark Periwinkle (#665FD1). oklch(55.1% 0.138 284.9), rgb(107, 99, 190).
Aa
White text reads best on this color (5.05:1).
About this color
#6B63BE is a medium-dark, moderately saturated purple. In OKLCH its lightness is 55%, its chroma 0.138 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.033 away. White text reads best on it, at 5.05:1.
| Hue family | Purples |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.138) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.15:1 |
| White text | 5.05:1 |
Values
| HEX | #6B63BE |
| RGB | rgb(107, 99, 190) |
| HSL | hsl(245, 41%, 57%) |
| OKLCH | oklch(55.1% 0.138 284.9) |
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 #6B63BE | 5.05:1 | AA | Lc -80.1 | Fine for body text |
| Black text on #6B63BE | 4.15:1 | AA large text | Lc 29.3 | Dividers and decoration only |
| #6B63BE text on white | 5.05:1 | AA | Lc 74.8 | Content text, not long reading |
| #6B63BE text on black | 4.15:1 | AA large text | Lc -27.0 | 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 600.
-
Step 50
50
#F5F5FB
oklch(97.2% 0.008 286.3)
-
Step 100
100
#E8E8F6
oklch(93.5% 0.019 286)
-
Step 200
200
#D6D6F0
oklch(88.4% 0.036 285.7)
-
Step 300
300
#BCBCE8
oklch(81% 0.062 284.9)
-
Step 400
400
#9A98DC
oklch(70.7% 0.099 284.9)
-
Step 500
500
#827DD3
oklch(63.1% 0.127 284.8)
-
Step 600
600 (this color)
#6B63BE
oklch(55.1% 0.138 284.9)
-
Step 700
700
#5B53A5
oklch(49.1% 0.127 285.1)
-
Step 800
800
#4A4486
oklch(42.6% 0.107 285.1)
-
Step 900
900
#3E3A6B
oklch(37.7% 0.082 285.5)
-
Step 950
950
#24223F
oklch(27% 0.053 285.4)
#6B63BE 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) | #3E71C1 | 0.061 |
| Deuteranopia (no green cones) | #3B6CBC | 0.061 |
| Tritanopia (no blue cones) | #517687 | 0.118 |
| Achromatopsia (no color) | #6F6F6F | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B63BE
#6B63BE
oklch(55.1% 0.138 284.9)
- #7D7500
#7D7500
oklch(55.2% 0.117 104.8)
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 #6B63BE, closest first.
No curated palette has a color within ΔE 0.04 of #6B63BE.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.033
- Slate Blue #6A5ACD ΔE 0.034
- Iris #6258C4 ΔE 0.035
- Light Indigo #6D5ACF ΔE 0.036
- Deep Lavender #8D5EB7 ΔE 0.056
- French Blue #436BAD ΔE 0.063
- Royal Blue #4169E1 ΔE 0.073
- Warm Blue #4B57DB ΔE 0.074
Use #6B63BE 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.