#6646CB
Closest named color: Bluey Purple (#6241C7). oklch(50.6% 0.195 288.5), rgb(102, 70, 203).
Aa
White text reads best on this color (6.35:1).
About this color
#6646CB is a medium-dark, vivid purple. In OKLCH its lightness is 51%, its chroma 0.195 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Bluey Purple (#6241C7), ΔE 0.014 away. White text reads best on it, at 6.35:1.
| Hue family | Purples |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.195) |
| Temperature | cool |
| Nearest name | Bluey Purple (#6241C7) |
| Black text | 3.30:1 |
| White text | 6.35:1 |
Values
| HEX | #6646CB |
| RGB | rgb(102, 70, 203) |
| HSL | hsl(254, 56%, 54%) |
| OKLCH | oklch(50.6% 0.195 288.5) |
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 #6646CB | 6.35:1 | AA | Lc -86.2 | Fine for body text |
| Black text on #6646CB | 3.30:1 | AA large text | Lc 23.0 | Dividers and decoration only |
| #6646CB text on white | 6.35:1 | AA | Lc 81.1 | Fine for body text |
| #6646CB text on black | 3.30:1 | AA large text | Lc -20.8 | 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 700.
-
Step 50
50
#F5F4FE
oklch(97.1% 0.013 290.8)
-
Step 100
100
#E9E7FC
oklch(93.6% 0.028 290.2)
-
Step 200
200
#D7D4FB
oklch(88.5% 0.053 288.8)
-
Step 300
300
#BEB7FB
oklch(80.9% 0.095 288.8)
-
Step 400
400
#9E8FF8
oklch(70.7% 0.15 288.5)
-
Step 500
500
#886EF5
oklch(63% 0.194 288.4)
-
Step 600
600
#7452E4
oklch(55.7% 0.21 288.3)
-
Step 700
700 (this color)
#6646CB
oklch(50.6% 0.195 288.5)
-
Step 800
800
#5037A0
oklch(42.8% 0.161 288.6)
-
Step 900
900
#41317F
oklch(37.7% 0.126 288.2)
-
Step 950
950
#261E4A
oklch(27.1% 0.079 288.4)
#6646CB 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) | #0062CF | 0.103 |
| Deuteranopia (no green cones) | #005CC8 | 0.101 |
| Tritanopia (no blue cones) | #436782 | 0.160 |
| Achromatopsia (no color) | #5F5F5F | 0.196 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6646CB
#6646CB
oklch(50.6% 0.195 288.5)
- #6B6900
#6B6900
oklch(50.6% 0.109 108.4)
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 #6646CB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluey Purple #6241C7 ΔE 0.014
- Blue With A Hint Of Purple #533CC6 ΔE 0.041
- Blurple #5539CC ΔE 0.041
- Iris #6258C4 ΔE 0.041
- Slate Blue #6A5ACD ΔE 0.045
- Light Indigo #6D5ACF ΔE 0.047
- Burple #6832E3 ΔE 0.048
- Purpley Blue #5F34E7 ΔE 0.054
Use #6646CB 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.