#6B42AC
Closest named color: Rebecca Purple (#663399). oklch(48.2% 0.163 297.8), rgb(107, 66, 172).
Aa
White text reads best on this color (6.99:1).
About this color
#6B42AC is a medium-dark, vivid purple. In OKLCH its lightness is 48%, its chroma 0.163 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 0.044 away. White text reads best on it, at 6.99:1.
| Hue family | Purples |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.163) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 3.00:1 |
| White text | 6.99:1 |
Values
| HEX | #6B42AC |
| RGB | rgb(107, 66, 172) |
| HSL | hsl(263, 45%, 47%) |
| OKLCH | oklch(48.2% 0.163 297.8) |
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 #6B42AC | 6.99:1 | AA | Lc -88.8 | Fine for body text |
| Black text on #6B42AC | 3.00:1 | AA large text | Lc 20.2 | Dividers and decoration only |
| #6B42AC text on white | 6.99:1 | AA | Lc 83.8 | Fine for body text |
| #6B42AC text on black | 3.00:1 | AA large text | Lc -18.1 | 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
#F6F4FC
oklch(97.1% 0.011 297.6)
-
Step 100
100
#EBE7F8
oklch(93.6% 0.023 296.7)
-
Step 200
200
#DCD4F3
oklch(88.6% 0.043 297.3)
-
Step 300
300
#C6B6EE
oklch(80.9% 0.08 297.7)
-
Step 400
400
#AA8FE5
oklch(70.8% 0.126 297.6)
-
Step 500
500
#9670DD
oklch(63.1% 0.161 297.7)
-
Step 600
600
#8155CA
oklch(55.5% 0.175 297.8)
-
Step 700
700 (this color)
#6B42AC
oklch(48.2% 0.163 297.8)
-
Step 800
800
#59398E
oklch(42.6% 0.136 297.7)
-
Step 900
900
#493271
oklch(37.6% 0.105 298)
-
Step 950
950
#2B1E42
oklch(27% 0.066 298.6)
#6B42AC 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) | #0059AF | 0.117 |
| Deuteranopia (no green cones) | #1458AA | 0.111 |
| Tritanopia (no blue cones) | #5C5971 | 0.125 |
| Achromatopsia (no color) | #595959 | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B42AC
#6B42AC
oklch(48.2% 0.163 297.8)
- #596600
#596600
oklch(48.2% 0.112 118.1)
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 #6B42AC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.044
- Bluey Purple #6241C7 ΔE 0.046
- Iris #6258C4 ΔE 0.061
- Blue With A Hint Of Purple #533CC6 ΔE 0.063
- Blurple #5539CC ΔE 0.069
- Slate Blue #6A5ACD ΔE 0.072
- Blueberry #464196 ΔE 0.073
- Light Indigo #6D5ACF ΔE 0.074
Use #6B42AC 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.