#6563AB
Closest named color: French Blue (#436BAD). oklch(53.4% 0.111 283.2), rgb(101, 99, 171).
Aa
White text reads best on this color (5.34:1).
About this color
#6563AB is a medium-dark, moderately saturated purple. In OKLCH its lightness is 53%, its chroma 0.111 and its hue 283°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.046 away. White text reads best on it, at 5.34:1.
| Hue family | Purples |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.111) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 3.92:1 |
| White text | 5.34:1 |
Values
| HEX | #6563AB |
| RGB | rgb(101, 99, 171) |
| HSL | hsl(242, 30%, 53%) |
| OKLCH | oklch(53.4% 0.111 283.2) |
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 #6563AB | 5.34:1 | AA | Lc -81.9 | Fine for body text |
| Black text on #6563AB | 3.92:1 | AA large text | Lc 27.5 | Dividers and decoration only |
| #6563AB text on white | 5.34:1 | AA | Lc 76.5 | Fine for body text |
| #6563AB text on black | 3.92:1 | AA large text | Lc -25.2 | 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E8E9F4
oklch(93.6% 0.015 281.9)
-
Step 200
200
#D6D7EB
oklch(88.4% 0.027 283.5)
-
Step 300
300
#BCBDE1
oklch(80.9% 0.051 284)
-
Step 400
400
#999AD1
oklch(70.6% 0.08 283.3)
-
Step 500
500
#8181C5
oklch(63.1% 0.101 283.1)
-
Step 600
600 (this color)
#6563AB
oklch(53.4% 0.111 283.2)
-
Step 700
700
#595799
oklch(49% 0.104 283.2)
-
Step 800
800
#49487C
oklch(42.7% 0.085 283.1)
-
Step 900
900
#3D3C64
oklch(37.6% 0.068 283.8)
-
Step 950
950
#24243A
oklch(27.1% 0.041 283.4)
#6563AB 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) | #4A6DAE | 0.041 |
| Deuteranopia (no green cones) | #4768A9 | 0.041 |
| Tritanopia (no blue cones) | #50717F | 0.095 |
| Achromatopsia (no color) | #6B6B6B | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6563AB
#6563AB
oklch(53.4% 0.111 283.2)
- #796F04
#796F04
oklch(53.4% 0.111 103.2)
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 #6563AB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.046
- Iris #6258C4 ΔE 0.052
- Dusky Blue #475F94 ΔE 0.058
- Slate Blue #6A5ACD ΔE 0.061
- Dark Periwinkle #665FD1 ΔE 0.062
- Dark Lavender #856798 ΔE 0.062
- Flat Blue #3C73A8 ΔE 0.063
- Light Indigo #6D5ACF ΔE 0.064
Use #6563AB 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.