#6336A6
Closest named color: Rebecca Purple (#663399). oklch(45.1% 0.171 297.5), rgb(99, 54, 166).
Aa
White text reads best on this color (8.04:1).
About this color
#6336A6 is a medium-dark, vivid purple. In OKLCH its lightness is 45%, its chroma 0.171 and its hue 298°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.023 away. White text reads best on it, at 8.04:1.
| Hue family | Purples |
| Lightness | medium-dark (45%) |
| Chroma | vivid (0.171) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.60:1 |
| White text | 8.04:1 |
Values
| HEX | #6336A6 |
| RGB | rgb(99, 54, 166) |
| HSL | hsl(264, 51%, 43%) |
| OKLCH | oklch(45.1% 0.171 297.5) |
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 #6336A6 | 8.04:1 | AAA | Lc -92.0 | Preferred for body text |
| Black text on #6336A6 | 2.60:1 | Fails | Lc 16.7 | Dividers and decoration only |
| #6336A6 text on white | 8.04:1 | AAA | Lc 87.3 | Fine for body text |
| #6336A6 text on black | 2.60:1 | Fails | Lc -14.8 | Not readable |
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 800.
-
Step 50
50
#F6F4FE
oklch(97.2% 0.013 295.3)
-
Step 100
100
#ECE6FB
oklch(93.6% 0.029 298.9)
-
Step 200
200
#DDD2FA
oklch(88.5% 0.056 297.8)
-
Step 300
300
#C8B3F9
oklch(80.9% 0.1 297.9)
-
Step 400
400
#AD88F7
oklch(70.7% 0.16 297.5)
-
Step 500
500
#9A65F3
oklch(63.1% 0.205 297.4)
-
Step 600
600
#8646E1
oklch(55.6% 0.222 297.6)
-
Step 700
700
#7236C4
oklch(49.2% 0.207 297.5)
-
Step 800
800 (this color)
#6336A6
oklch(45.1% 0.171 297.5)
-
Step 900
900
#4B2B7E
oklch(37.6% 0.134 297.3)
-
Step 950
950
#2C1A4A
oklch(27% 0.086 297.6)
#6336A6 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) | #0050A9 | 0.115 |
| Deuteranopia (no green cones) | #004FA4 | 0.115 |
| Tritanopia (no blue cones) | #535069 | 0.131 |
| Achromatopsia (no color) | #505050 | 0.172 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6336A6
#6336A6
oklch(45.1% 0.171 297.5)
- #515C00
#515C00
oklch(44.9% 0.104 117.5)
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 #6336A6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.023
- Bluey Purple #6241C7 ΔE 0.057
- Blueberry #464196 ΔE 0.060
- Blue With A Hint Of Purple #533CC6 ΔE 0.060
- Grape #7209B7 ΔE 0.062
- Dark Slate Blue #483D8B ΔE 0.066
- Chrysanthemum #560BAD ΔE 0.066
- Blurple #5539CC ΔE 0.067
Use #6336A6 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.