#6B1F9B
Closest named color: Rebecca Purple (#663399). oklch(42.6% 0.188 307.9), rgb(107, 31, 155).
Aa
White text reads best on this color (9.15:1).
About this color
#6B1F9B is a dark, vivid purple. In OKLCH its lightness is 43%, its chroma 0.188 and its hue 308°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.034 away. White text reads best on it, at 9.15:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | vivid (0.188) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.29:1 |
| White text | 9.15:1 |
Values
| HEX | #6B1F9B |
| RGB | rgb(107, 31, 155) |
| HSL | hsl(277, 67%, 36%) |
| OKLCH | oklch(42.6% 0.188 307.9) |
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 #6B1F9B | 9.15:1 | AAA | Lc -94.4 | Preferred for body text |
| Black text on #6B1F9B | 2.29:1 | Fails | Lc 14.0 | Not readable |
| #6B1F9B text on white | 9.15:1 | AAA | Lc 90.0 | Fine for body text |
| #6B1F9B text on black | 2.29:1 | Fails | Lc -12.3 | 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 800.
-
Step 50
50
#F8F3FD
oklch(97.1% 0.014 308.3)
-
Step 100
100
#F0E5FB
oklch(93.7% 0.032 308.1)
-
Step 200
200
#E4CFF9
oklch(88.5% 0.061 307.7)
-
Step 300
300
#D4AEF8
oklch(81% 0.109 307.5)
-
Step 400
400
#BF7EF4
oklch(70.7% 0.176 307.9)
-
Step 500
500
#AF56EF
oklch(63.1% 0.225 308)
-
Step 600
600
#9B32DD
oklch(55.6% 0.243 308)
-
Step 700
700
#8421C0
oklch(49.1% 0.226 307.8)
-
Step 800
800 (this color)
#6B1F9B
oklch(42.6% 0.188 307.9)
-
Step 900
900
#57227C
oklch(37.7% 0.147 307.7)
-
Step 950
950
#331648
oklch(27% 0.092 308.1)
#6B1F9B 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) | #00459E | 0.147 |
| Deuteranopia (no green cones) | #004999 | 0.149 |
| Tritanopia (no blue cones) | #633F5D | 0.130 |
| Achromatopsia (no color) | #484848 | 0.189 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B1F9B
#6B1F9B
oklch(42.6% 0.188 307.9)
- #3D5900
#3D5900
oklch(42.6% 0.111 127.7)
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 #6B1F9B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.034
- Grape #7209B7 ΔE 0.048
- Chrysanthemum #560BAD ΔE 0.060
- Purple #800080 ΔE 0.068
- Dark Magenta #8B008B ΔE 0.075
- Imperial Purple #480CA8 ΔE 0.083
- Dark Slate Blue #483D8B ΔE 0.086
- Blueberry #464196 ΔE 0.089
Use #6B1F9B 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.