#6B31AB
Closest named color: Rebecca Purple (#663399). oklch(45.8% 0.184 301), rgb(107, 49, 171).
Aa
White text reads best on this color (7.91:1).
About this color
#6B31AB is a medium-dark, vivid purple. In OKLCH its lightness is 46%, its chroma 0.184 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.030 away. White text reads best on it, at 7.91:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.184) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.65:1 |
| White text | 7.91:1 |
Values
| HEX | #6B31AB |
| RGB | rgb(107, 49, 171) |
| HSL | hsl(269, 55%, 43%) |
| OKLCH | oklch(45.8% 0.184 301) |
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 #6B31AB | 7.91:1 | AAA | Lc -91.5 | Preferred for body text |
| Black text on #6B31AB | 2.65:1 | Fails | Lc 17.3 | Dividers and decoration only |
| #6B31AB text on white | 7.91:1 | AAA | Lc 86.7 | Fine for body text |
| #6B31AB text on black | 2.65:1 | Fails | Lc -15.4 | 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 800.
-
Step 50
50
#F7F3FE
oklch(97% 0.015 302.6)
-
Step 100
100
#EDE6FC
oklch(93.7% 0.03 300.3)
-
Step 200
200
#DFD1FB
oklch(88.5% 0.059 300.4)
-
Step 300
300
#CCB0FB
oklch(80.8% 0.108 301.2)
-
Step 400
400
#B483FA
oklch(70.7% 0.173 301.1)
-
Step 500
500
#A25DF6
oklch(63% 0.22 301)
-
Step 600
600
#8E3BE5
oklch(55.5% 0.239 300.9)
-
Step 700
700
#792BC7
oklch(49.1% 0.222 300.9)
-
Step 800
800 (this color)
#6B31AB
oklch(45.8% 0.184 301)
-
Step 900
900
#502680
oklch(37.6% 0.144 301.1)
-
Step 950
950
#2F184B
oklch(27.1% 0.091 301.3)
#6B31AB 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) | #0051AF | 0.130 |
| Deuteranopia (no green cones) | #0050A8 | 0.131 |
| Tritanopia (no blue cones) | #5D4E6B | 0.135 |
| Achromatopsia (no color) | #515151 | 0.186 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B31AB
#6B31AB
oklch(45.8% 0.184 301)
- #4F6000
#4F6000
oklch(45.8% 0.11 120.9)
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 #6B31AB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.030
- Grape #7209B7 ΔE 0.047
- Bluey Purple #6241C7 ΔE 0.056
- Blue With A Hint Of Purple #533CC6 ΔE 0.065
- Chrysanthemum #560BAD ΔE 0.067
- Blurple #5539CC ΔE 0.069
- Purple Blue #5D21D0 ΔE 0.070
- Blueberry #464196 ΔE 0.078
Use #6B31AB 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.