#6D3D91
Closest named color: Rebecca Purple (#663399). oklch(45.8% 0.138 308.3), rgb(109, 61, 145).
Aa
White text reads best on this color (7.70:1).
About this color
#6D3D91 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 46%, its chroma 0.138 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 0.031 away. White text reads best on it, at 7.70:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.138) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.72:1 |
| White text | 7.70:1 |
Values
| HEX | #6D3D91 |
| RGB | rgb(109, 61, 145) |
| HSL | hsl(274, 41%, 40%) |
| OKLCH | oklch(45.8% 0.138 308.3) |
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 #6D3D91 | 7.70:1 | AAA | Lc -91.2 | Preferred for body text |
| Black text on #6D3D91 | 2.72:1 | Fails | Lc 17.6 | Dividers and decoration only |
| #6D3D91 text on white | 7.70:1 | AAA | Lc 86.4 | Fine for body text |
| #6D3D91 text on black | 2.72:1 | Fails | Lc -15.7 | Dividers and decoration only |
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
#F7F4FB
oklch(97.1% 0.01 305.4)
-
Step 100
100
#EEE6F6
oklch(93.6% 0.023 308.2)
-
Step 200
200
#E1D2F0
oklch(88.5% 0.044 307.9)
-
Step 300
300
#CFB3E9
oklch(80.9% 0.08 308.2)
-
Step 400
400
#B789DE
oklch(70.6% 0.13 308.3)
-
Step 500
500
#A569D4
oklch(63% 0.164 308.3)
-
Step 600
600
#914EC2
oklch(55.6% 0.179 308.3)
-
Step 700
700
#7B3EA7
oklch(49.1% 0.166 308.2)
-
Step 800
800 (this color)
#6D3D91
oklch(45.8% 0.138 308.3)
-
Step 900
900
#522E6C
oklch(37.6% 0.108 308.9)
-
Step 950
950
#301C40
oklch(27.1% 0.068 308.1)
#6D3D91 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) | #205194 | 0.114 |
| Deuteranopia (no green cones) | #32548F | 0.103 |
| Tritanopia (no blue cones) | #684C61 | 0.097 |
| Achromatopsia (no color) | #535353 | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6D3D91
#6D3D91
oklch(45.8% 0.138 308.3)
- #436300
#436300
oklch(45.7% 0.12 128.3)
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 #6D3D91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.031
- Light Eggplant #894585 ΔE 0.065
- Dark Slate Blue #483D8B ΔE 0.068
- Blueberry #464196 ΔE 0.069
- Twilight #4E518B ΔE 0.071
- Warm Purple #952E8F ΔE 0.080
- Dusk #4E5481 ΔE 0.084
- Purple #800080 ΔE 0.088
Use #6D3D91 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.