#6600B5
Closest named color: Grape (#7209B7). oklch(42.6% 0.228 299.7), rgb(102, 0, 181).
Aa
White text reads best on this color (9.40:1).
About this color
#6600B5 is a dark, vivid purple. In OKLCH its lightness is 43%, its chroma 0.228 and its hue 300°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape (#7209B7), ΔE 0.027 away. White text reads best on it, at 9.40:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | vivid (0.228) |
| Temperature | in between |
| Nearest name | Grape (#7209B7) |
| Black text | 2.23:1 |
| White text | 9.40:1 |
Values
| HEX | #6600B5 |
| RGB | rgb(102, 0, 181) |
| HSL | hsl(274, 100%, 35%) |
| OKLCH | oklch(42.6% 0.228 299.7) |
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 #6600B5 | 9.40:1 | AAA | Lc -93.9 | Preferred for body text |
| Black text on #6600B5 | 2.23:1 | Fails | Lc 14.6 | Not readable |
| #6600B5 text on white | 9.40:1 | AAA | Lc 89.4 | Fine for body text |
| #6600B5 text on black | 2.23:1 | Fails | Lc -12.8 | 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
#F7F3FF
oklch(97.1% 0.016 301.2)
-
Step 100
100
#EDE5FF
oklch(93.6% 0.036 299.7)
-
Step 200
200
#DFD0FF
oklch(88.5% 0.066 299.6)
-
Step 300
300
#CBB0FF
oklch(80.9% 0.113 299.6)
-
Step 400
400
#B382FF
oklch(70.7% 0.18 299.9)
-
Step 500
500
#A259FF
oklch(63.1% 0.235 299.8)
-
Step 600
600
#9310FF
oklch(55.6% 0.291 299.8)
-
Step 700
700
#7C00DB
oklch(49.1% 0.263 299.5)
-
Step 800
800 (this color)
#6600B5
oklch(42.6% 0.228 299.7)
-
Step 900
900
#53188F
oklch(37.8% 0.177 300)
-
Step 950
950
#301254
oklch(27.1% 0.112 299.5)
#6600B5 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) | #0046B9 | 0.143 |
| Deuteranopia (no green cones) | #0045B2 | 0.143 |
| Tritanopia (no blue cones) | #524469 | 0.166 |
| Achromatopsia (no color) | #464646 | 0.230 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6600B5
#6600B5
oklch(42.6% 0.228 299.7)
- #485600
#485600
oklch(42.6% 0.101 120)
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 #6600B5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape #7209B7 ΔE 0.027
- Chrysanthemum #560BAD ΔE 0.035
- Purple Blue #5D21D0 ΔE 0.057
- Violet Blue #510AC9 ΔE 0.058
- Imperial Purple #480CA8 ΔE 0.064
- Rebecca Purple #663399 ΔE 0.070
- Blurple #5539CC ΔE 0.080
- Blue With A Hint Of Purple #533CC6 ΔE 0.081
Use #6600B5 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.