#6B37B3
Closest named color: Bluey Purple (#6241C7). oklch(47.1% 0.186 298.1), rgb(107, 55, 179).
Aa
White text reads best on this color (7.44:1).
About this color
#6B37B3 is a medium-dark, vivid purple. In OKLCH its lightness is 47%, its chroma 0.186 and its hue 298°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Bluey Purple (#6241C7), ΔE 0.040 away. White text reads best on it, at 7.44:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.186) |
| Temperature | in between |
| Nearest name | Bluey Purple (#6241C7) |
| Black text | 2.82:1 |
| White text | 7.44:1 |
Values
| HEX | #6B37B3 |
| RGB | rgb(107, 55, 179) |
| HSL | hsl(265, 53%, 46%) |
| OKLCH | oklch(47.1% 0.186 298.1) |
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 #6B37B3 | 7.44:1 | AAA | Lc -90.1 | Preferred for body text |
| Black text on #6B37B3 | 2.82:1 | Fails | Lc 18.8 | Dividers and decoration only |
| #6B37B3 text on white | 7.44:1 | AAA | Lc 85.2 | Fine for body text |
| #6B37B3 text on black | 2.82:1 | Fails | Lc -16.8 | 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
#F6F4FD
oklch(97.1% 0.012 296.4)
-
Step 100
100
#ECE7F9
oklch(93.7% 0.025 298.6)
-
Step 200
200
#DDD3F7
oklch(88.6% 0.05 298.1)
-
Step 300
300
#C7B4F4
oklch(80.8% 0.091 298)
-
Step 400
400
#AC8BEE
oklch(70.7% 0.144 298)
-
Step 500
500
#996AE8
oklch(63.1% 0.184 298.2)
-
Step 600
600
#854ED6
oklch(55.7% 0.199 298.2)
-
Step 700
700 (this color)
#6B37B3
oklch(47.1% 0.186 298.1)
-
Step 800
800
#5B3496
oklch(42.7% 0.153 297.9)
-
Step 900
900
#4B2F78
oklch(37.8% 0.12 298.1)
-
Step 950
950
#2C1C46
oklch(27% 0.076 298.8)
#6B37B3 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) | #0055B7 | 0.124 |
| Deuteranopia (no green cones) | #0054B0 | 0.125 |
| Tritanopia (no blue cones) | #5A5571 | 0.141 |
| Achromatopsia (no color) | #555555 | 0.187 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B37B3
#6B37B3
oklch(47.1% 0.186 298.1)
- #566300
#566300
oklch(47.2% 0.11 118.3)
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 #6B37B3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluey Purple #6241C7 ΔE 0.040
- Rebecca Purple #663399 ΔE 0.043
- Grape #7209B7 ΔE 0.053
- Blue With A Hint Of Purple #533CC6 ΔE 0.054
- Blurple #5539CC ΔE 0.058
- Purple Blue #5D21D0 ΔE 0.064
- Iris #6258C4 ΔE 0.075
- Chrysanthemum #560BAD ΔE 0.076
Use #6B37B3 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.