#633CCD
Closest named color: Bluey Purple (#6241C7). oklch(49.1% 0.209 288.5), rgb(99, 60, 205).
Aa
White text reads best on this color (6.86:1).
About this color
#633CCD is a medium-dark, vivid purple. In OKLCH its lightness is 49%, its chroma 0.209 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Bluey Purple (#6241C7), ΔE 0.013 away. White text reads best on it, at 6.86:1.
| Hue family | Purples |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.209) |
| Temperature | cool |
| Nearest name | Bluey Purple (#6241C7) |
| Black text | 3.05:1 |
| White text | 6.86:1 |
Values
| HEX | #633CCD |
| RGB | rgb(99, 60, 205) |
| HSL | hsl(256, 59%, 52%) |
| OKLCH | oklch(49.1% 0.209 288.5) |
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 #633CCD | 6.86:1 | AA | Lc -88.0 | Fine for body text |
| Black text on #633CCD | 3.05:1 | AA large text | Lc 21.1 | Dividers and decoration only |
| #633CCD text on white | 6.86:1 | AA | Lc 83.0 | Fine for body text |
| #633CCD text on black | 3.05:1 | AA large text | Lc -19.0 | 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 700.
-
Step 50
50
#F5F4FE
oklch(97.1% 0.013 290.8)
-
Step 100
100
#E8E7FD
oklch(93.5% 0.03 287.9)
-
Step 200
200
#D7D4FD
oklch(88.5% 0.056 288.5)
-
Step 300
300
#BEB6FF
oklch(80.9% 0.102 288.9)
-
Step 400
400
#9E8DFE
oklch(70.7% 0.161 288.5)
-
Step 500
500
#896BFC
oklch(63.1% 0.207 288.6)
-
Step 600
600
#754DEB
oklch(55.6% 0.224 288.5)
-
Step 700
700 (this color)
#633CCD
oklch(49.1% 0.209 288.5)
-
Step 800
800
#5033A6
oklch(42.7% 0.174 288.3)
-
Step 900
900
#422F83
oklch(37.7% 0.135 288.7)
-
Step 950
950
#261C4D
oklch(26.9% 0.087 288.6)
#633CCD 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) | #005DD1 | 0.106 |
| Deuteranopia (no green cones) | #0057CA | 0.103 |
| Tritanopia (no blue cones) | #3B6280 | 0.170 |
| Achromatopsia (no color) | #5A5A5A | 0.211 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #633CCD
#633CCD
oklch(49.1% 0.209 288.5)
- #676500
#676500
oklch(49.2% 0.106 108.4)
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 #633CCD, closest first.
No curated palette has a color within ΔE 0.04 of #633CCD.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluey Purple #6241C7 ΔE 0.013
- Blurple #5539CC ΔE 0.026
- Blue With A Hint Of Purple #533CC6 ΔE 0.029
- Burple #6832E3 ΔE 0.036
- Purple Blue #5D21D0 ΔE 0.042
- Purpley Blue #5F34E7 ΔE 0.043
- Iris #6258C4 ΔE 0.061
- Purply Blue #661AEE ΔE 0.061
Use #633CCD 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.