#6B3187
Closest named color: Rebecca Purple (#663399). oklch(43.1% 0.144 313.1), rgb(107, 49, 135).
Aa
White text reads best on this color (8.69:1).
About this color
#6B3187 is a dark, vivid purple. In OKLCH its lightness is 43%, its chroma 0.144 and its hue 313°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.032 away. White text reads best on it, at 8.69:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | vivid (0.144) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.41:1 |
| White text | 8.69:1 |
Values
| HEX | #6B3187 |
| RGB | rgb(107, 49, 135) |
| HSL | hsl(280, 47%, 36%) |
| OKLCH | oklch(43.1% 0.144 313.1) |
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 #6B3187 | 8.69:1 | AAA | Lc -93.8 | Preferred for body text |
| Black text on #6B3187 | 2.41:1 | Fails | Lc 14.7 | Not readable |
| #6B3187 text on white | 8.69:1 | AAA | Lc 89.3 | Fine for body text |
| #6B3187 text on black | 2.41:1 | Fails | Lc -12.9 | 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
#F8F3FB
oklch(97% 0.012 313.2)
-
Step 100
100
#F0E5F6
oklch(93.6% 0.025 314)
-
Step 200
200
#E4D1F0
oklch(88.6% 0.047 312.5)
-
Step 300
300
#D4B1E8
oklch(80.9% 0.085 313.1)
-
Step 400
400
#BE86DC
oklch(70.7% 0.135 313.2)
-
Step 500
500
#AD65D2
oklch(63.1% 0.171 313)
-
Step 600
600
#9948BF
oklch(55.6% 0.188 313.3)
-
Step 700
700
#8238A5
oklch(49% 0.175 313)
-
Step 800
800 (this color)
#6B3187
oklch(43.1% 0.144 313.1)
-
Step 900
900
#562C6B
oklch(37.8% 0.112 313.1)
-
Step 950
950
#321A3F
oklch(26.9% 0.072 312.5)
#6B3187 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) | #10488A | 0.132 |
| Deuteranopia (no green cones) | #2C4D85 | 0.116 |
| Tritanopia (no blue cones) | #684157 | 0.097 |
| Achromatopsia (no color) | #4B4B4B | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B3187
#6B3187
oklch(43.1% 0.144 313.1)
- #335D00
#335D00
oklch(43% 0.122 133.1)
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 #6B3187, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.032
- Purple #800080 ΔE 0.067
- Dark Slate Blue #483D8B ΔE 0.068
- Blueberry #464196 ΔE 0.076
- Dark Magenta #8B008B ΔE 0.078
- Light Eggplant #894585 ΔE 0.080
- Warm Purple #952E8F ΔE 0.085
- Twilight #4E518B ΔE 0.089
Use #6B3187 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.