#6A37A6
Closest named color: Rebecca Purple (#663399). oklch(46% 0.171 301), rgb(106, 55, 166).
Aa
White text reads best on this color (7.74:1).
About this color
#6A37A6 is a medium-dark, vivid purple. In OKLCH its lightness is 46%, its chroma 0.171 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 0.023 away. White text reads best on it, at 7.74:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.171) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.70:1 |
| White text | 7.74:1 |
Values
| HEX | #6A37A6 |
| RGB | rgb(106, 55, 166) |
| HSL | hsl(268, 50%, 43%) |
| OKLCH | oklch(46% 0.171 301) |
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 #6A37A6 | 7.74:1 | AAA | Lc -91.1 | Preferred for body text |
| Black text on #6A37A6 | 2.70:1 | Fails | Lc 17.7 | Dividers and decoration only |
| #6A37A6 text on white | 7.74:1 | AAA | Lc 86.3 | Fine for body text |
| #6A37A6 text on black | 2.70:1 | Fails | Lc -15.7 | 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
#ECE7F8
oklch(93.7% 0.023 299.4)
-
Step 200
200
#DED3F3
oklch(88.6% 0.045 301.1)
-
Step 300
300
#C9B5EE
oklch(80.9% 0.082 300.6)
-
Step 400
400
#AF8CE6
oklch(70.8% 0.133 301)
-
Step 500
500
#9C6CDE
oklch(63.1% 0.169 301.1)
-
Step 600
600
#8751CC
oklch(55.6% 0.184 300.8)
-
Step 700
700 (this color)
#6A37A6
oklch(46% 0.171 301)
-
Step 800
800
#5D368F
oklch(42.7% 0.142 300.7)
-
Step 900
900
#4C3072
oklch(37.7% 0.11 300.8)
-
Step 950
950
#2C1D43
oklch(27% 0.07 300)
#6A37A6 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) | #0052A9 | 0.125 |
| Deuteranopia (no green cones) | #0052A4 | 0.126 |
| Tritanopia (no blue cones) | #5D506A | 0.127 |
| Achromatopsia (no color) | #535353 | 0.172 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6A37A6
#6A37A6
oklch(46% 0.171 301)
- #4F6100
#4F6100
oklch(46.1% 0.111 121.4)
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 #6A37A6, 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 0.058
- Grape #7209B7 ΔE 0.060
- Blue With A Hint Of Purple #533CC6 ΔE 0.067
- Blueberry #464196 ΔE 0.070
- Blurple #5539CC ΔE 0.073
- Dark Slate Blue #483D8B ΔE 0.075
- Chrysanthemum #560BAD ΔE 0.076
Use #6A37A6 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.