#6B1F78
Closest named color: Purple (#800080). oklch(39.9% 0.155 321.4), rgb(107, 31, 120).
Aa
White text reads best on this color (10.03:1).
About this color
#6B1F78 is a dark, vivid purple. In OKLCH its lightness is 40%, its chroma 0.155 and its hue 321°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Purple (#800080), ΔE 0.049 away. White text reads best on it, at 10.03:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | vivid (0.155) |
| Temperature | in between |
| Nearest name | Purple (#800080) |
| Black text | 2.09:1 |
| White text | 10.03:1 |
Values
| HEX | #6B1F78 |
| RGB | rgb(107, 31, 120) |
| HSL | hsl(291, 59%, 30%) |
| OKLCH | oklch(39.9% 0.155 321.4) |
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 #6B1F78 | 10.03:1 | AAA | Lc -96.6 | Preferred for body text |
| Black text on #6B1F78 | 2.09:1 | Fails | Lc 11.6 | Not readable |
| #6B1F78 text on white | 10.03:1 | AAA | Lc 92.4 | Preferred for body text |
| #6B1F78 text on black | 2.09:1 | Fails | Lc -10.1 | 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 900.
-
Step 50
50
#FBF2FC
oklch(97.1% 0.016 322.7)
-
Step 100
100
#F5E3F8
oklch(93.6% 0.034 321.4)
-
Step 200
200
#EECCF3
oklch(88.6% 0.064 322)
-
Step 300
300
#E3A8EE
oklch(81% 0.115 321.1)
-
Step 400
400
#D474E5
oklch(70.8% 0.185 321.4)
-
Step 500
500
#C746DD
oklch(63.2% 0.237 321.5)
-
Step 600
600
#B211CA
oklch(55.6% 0.257 321.5)
-
Step 700
700
#9800AD
oklch(49.1% 0.234 321.5)
-
Step 800
800
#7C088E
oklch(42.7% 0.198 321.2)
-
Step 900
900 (this color)
#6B1F78
oklch(39.9% 0.155 321.4)
-
Step 950
950
#3B1042
oklch(26.9% 0.098 321.8)
#6B1F78 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) | #003D7B | 0.157 |
| Deuteranopia (no green cones) | #2A4576 | 0.134 |
| Tritanopia (no blue cones) | #6C2F49 | 0.094 |
| Achromatopsia (no color) | #424242 | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B1F78
#6B1F78
oklch(39.9% 0.155 321.4)
- #0C5800
#0C5800
oklch(40.1% 0.133 141.4)
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 #6B1F78, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple #800080 ΔE 0.049
- Rich Purple #720058 ΔE 0.062
- Rebecca Purple #663399 ΔE 0.064
- Velvet #750851 ΔE 0.071
- Dark Magenta #8B008B ΔE 0.073
- Grape Purple #5D1451 ΔE 0.073
- Indigo #4B0082 ΔE 0.087
- Royal Purple #4B006E ΔE 0.087
Use #6B1F78 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.