#6D337D
Closest named color: Rebecca Purple (#663399). oklch(43% 0.131 318.5), rgb(109, 51, 125).
Aa
White text reads best on this color (8.67:1).
About this color
#6D337D is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.131 and its hue 318°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.049 away. White text reads best on it, at 8.67:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.131) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.41:1 |
| White text | 8.67:1 |
Values
| HEX | #6D337D |
| RGB | rgb(109, 51, 125) |
| HSL | hsl(287, 42%, 35%) |
| OKLCH | oklch(43% 0.131 318.5) |
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 #6D337D | 8.67:1 | AAA | Lc -93.8 | Preferred for body text |
| Black text on #6D337D | 2.41:1 | Fails | Lc 14.7 | Not readable |
| #6D337D text on white | 8.67:1 | AAA | Lc 89.3 | Fine for body text |
| #6D337D 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
#F8F3FA
oklch(97% 0.011 316.5)
-
Step 100
100
#F0E5F4
oklch(93.5% 0.023 317.1)
-
Step 200
200
#E6D1EC
oklch(88.6% 0.043 318.7)
-
Step 300
300
#D6B1E1
oklch(80.8% 0.077 318.4)
-
Step 400
400
#C187D2
oklch(70.7% 0.123 318.4)
-
Step 500
500
#B167C5
oklch(63.2% 0.156 318.8)
-
Step 600
600
#9C4BB2
oklch(55.6% 0.171 318.6)
-
Step 700
700
#853C99
oklch(49.2% 0.158 318.5)
-
Step 800
800 (this color)
#6D337D
oklch(43% 0.131 318.5)
-
Step 900
900
#582D64
oklch(37.8% 0.102 318.5)
-
Step 950
950
#331B3A
oklch(26.9% 0.064 318.3)
#6D337D 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) | #22477F | 0.123 |
| Deuteranopia (no green cones) | #374D7B | 0.107 |
| Tritanopia (no blue cones) | #6D3F53 | 0.084 |
| Achromatopsia (no color) | #4B4B4B | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6D337D
#6D337D
oklch(43% 0.131 318.5)
- #235F04
#235F04
oklch(42.9% 0.131 138.4)
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 #6D337D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.049
- Purple #800080 ΔE 0.069
- Light Eggplant #894585 ΔE 0.073
- Dark Slate Blue #483D8B ΔE 0.074
- Dark Magenta #8B008B ΔE 0.081
- Warm Purple #952E8F ΔE 0.083
- Blueberry #464196 ΔE 0.084
- Rich Purple #720058 ΔE 0.087
Use #6D337D 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.