#6563B4
Closest named color: Iris (#6258C4). oklch(54% 0.124 282.5), rgb(101, 99, 180).
Aa
White text reads best on this color (5.25:1).
About this color
#6563B4 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 54%, its chroma 0.124 and its hue 283°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.041 away. White text reads best on it, at 5.25:1.
| Hue family | Purples |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.124) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.99:1 |
| White text | 5.25:1 |
Values
| HEX | #6563B4 |
| RGB | rgb(101, 99, 180) |
| HSL | hsl(241, 35%, 55%) |
| OKLCH | oklch(54% 0.124 282.5) |
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 #6563B4 | 5.25:1 | AA | Lc -81.3 | Fine for body text |
| Black text on #6563B4 | 3.99:1 | AA large text | Lc 28.1 | Dividers and decoration only |
| #6563B4 text on white | 5.25:1 | AA | Lc 76.0 | Fine for body text |
| #6563B4 text on black | 3.99:1 | AA large text | Lc -25.8 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E8E9F5
oklch(93.7% 0.016 282.3)
-
Step 200
200
#D5D7EE
oklch(88.5% 0.032 281.8)
-
Step 300
300
#BBBDE5
oklch(81% 0.056 282.8)
-
Step 400
400
#989AD7
oklch(70.8% 0.089 282.4)
-
Step 500
500
#7F80CC
oklch(63.1% 0.113 282.1)
-
Step 600
600 (this color)
#6563B4
oklch(54% 0.124 282.5)
-
Step 700
700
#5856A0
oklch(49.1% 0.116 282.5)
-
Step 800
800
#484781
oklch(42.7% 0.095 282.4)
-
Step 900
900
#3C3C68
oklch(37.8% 0.074 282.3)
-
Step 950
950
#23233D
oklch(27% 0.048 282.7)
#6563B4 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) | #446FB7 | 0.048 |
| Deuteranopia (no green cones) | #4069B2 | 0.048 |
| Tritanopia (no blue cones) | #4C7483 | 0.107 |
| Achromatopsia (no color) | #6C6C6C | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6563B4
#6563B4
oklch(54% 0.124 282.5)
- #7C7000
#7C7000
oklch(53.9% 0.113 102)
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 #6563B4, closest first.
No curated palette has a color within ΔE 0.04 of #6563B4.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.041
- Dark Periwinkle #665FD1 ΔE 0.048
- Slate Blue #6A5ACD ΔE 0.048
- French Blue #436BAD ΔE 0.049
- Light Indigo #6D5ACF ΔE 0.051
- Deep Lavender #8D5EB7 ΔE 0.065
- Flat Blue #3C73A8 ΔE 0.068
- Dusky Blue #475F94 ΔE 0.068
Use #6563B4 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.