#6C63BB
Closest named color: Iris (#6258C4). oklch(55% 0.133 285.8), rgb(108, 99, 187).
Aa
White text reads best on this color (5.07:1).
About this color
#6C63BB is a medium-dark, moderately saturated purple. In OKLCH its lightness is 55%, its chroma 0.133 and its hue 286°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.037 away. White text reads best on it, at 5.07:1.
| Hue family | Purples |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.133) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 4.13:1 |
| White text | 5.07:1 |
Values
| HEX | #6C63BB |
| RGB | rgb(108, 99, 187) |
| HSL | hsl(246, 39%, 56%) |
| OKLCH | oklch(55% 0.133 285.8) |
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 #6C63BB | 5.07:1 | AA | Lc -80.3 | Fine for body text |
| Black text on #6C63BB | 4.13:1 | AA large text | Lc 29.2 | Dividers and decoration only |
| #6C63BB text on white | 5.07:1 | AA | Lc 74.9 | Content text, not long reading |
| #6C63BB text on black | 4.13:1 | AA large text | Lc -26.8 | 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
#E8E8F5
oklch(93.5% 0.017 286.1)
-
Step 200
200
#D6D6EF
oklch(88.4% 0.034 285.7)
-
Step 300
300
#BCBCE6
oklch(80.9% 0.059 285)
-
Step 400
400
#9B98DA
oklch(70.7% 0.096 285.8)
-
Step 500
500
#837DD0
oklch(63% 0.123 285.6)
-
Step 600
600 (this color)
#6C63BB
oklch(55% 0.133 285.8)
-
Step 700
700
#5C53A3
oklch(49% 0.125 286)
-
Step 800
800
#4B4584
oklch(42.8% 0.102 285.6)
-
Step 900
900
#3E3A6A
oklch(37.6% 0.081 285.6)
-
Step 950
950
#24223E
oklch(26.9% 0.051 285.7)
#6C63BB 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) | #4171BE | 0.060 |
| Deuteranopia (no green cones) | #3F6CB9 | 0.059 |
| Tritanopia (no blue cones) | #557586 | 0.113 |
| Achromatopsia (no color) | #6E6E6E | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6C63BB
#6C63BB
oklch(55% 0.133 285.8)
- #7B7500
#7B7500
oklch(55% 0.117 106.1)
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 #6C63BB, closest first.
No curated palette has a color within ΔE 0.04 of #6C63BB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.037
- Dark Periwinkle #665FD1 ΔE 0.038
- Slate Blue #6A5ACD ΔE 0.038
- Light Indigo #6D5ACF ΔE 0.040
- Deep Lavender #8D5EB7 ΔE 0.054
- French Blue #436BAD ΔE 0.062
- Dark Lavender #856798 ΔE 0.071
- Windows Blue #3778BF ΔE 0.076
Use #6C63BB 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.