#6B377D
Closest named color: Rebecca Purple (#663399). oklch(43.4% 0.123 316.7), rgb(107, 55, 125).
Aa
White text reads best on this color (8.50:1).
About this color
#6B377D is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.123 and its hue 317°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.050 away. White text reads best on it, at 8.50:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.123) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.46:1 |
| White text | 8.50:1 |
Values
| HEX | #6B377D |
| RGB | rgb(107, 55, 125) |
| HSL | hsl(285, 39%, 35%) |
| OKLCH | oklch(43.4% 0.123 316.7) |
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 #6B377D | 8.50:1 | AAA | Lc -93.5 | Preferred for body text |
| Black text on #6B377D | 2.46:1 | Fails | Lc 15.1 | Dividers and decoration only |
| #6B377D text on white | 8.50:1 | AAA | Lc 88.9 | Fine for body text |
| #6B377D text on black | 2.46:1 | Fails | Lc -13.3 | 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
#F8F4FA
oklch(97.2% 0.009 314.8)
-
Step 100
100
#F0E6F3
oklch(93.7% 0.02 318.4)
-
Step 200
200
#E4D1EB
oklch(88.4% 0.041 317)
-
Step 300
300
#D4B3E0
oklch(81% 0.072 317)
-
Step 400
400
#BD89D0
oklch(70.6% 0.115 316.7)
-
Step 500
500
#AC6AC4
oklch(63% 0.147 316.5)
-
Step 600
600
#9850B0
oklch(55.7% 0.159 317)
-
Step 700
700
#814098
oklch(49.1% 0.149 316.4)
-
Step 800
800 (this color)
#6B377D
oklch(43.4% 0.123 316.7)
-
Step 900
900
#552F63
oklch(37.6% 0.096 316.3)
-
Step 950
950
#321C3A
oklch(27% 0.061 316.6)
#6B377D 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) | #27497F | 0.112 |
| Deuteranopia (no green cones) | #384E7B | 0.099 |
| Tritanopia (no blue cones) | #6A4254 | 0.081 |
| Achromatopsia (no color) | #4D4D4D | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B377D
#6B377D
oklch(43.4% 0.123 316.7)
- #2C5F0B
#2C5F0B
oklch(43.3% 0.123 136.7)
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 #6B377D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.050
- Dark Slate Blue #483D8B ΔE 0.068
- Light Eggplant #894585 ΔE 0.071
- Purple #800080 ΔE 0.078
- Blueberry #464196 ΔE 0.079
- Twilight #4E518B ΔE 0.079
- Dusk #4E5481 ΔE 0.086
- Warm Purple #952E8F ΔE 0.087
Use #6B377D 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.