#6B3D88
Closest named color: Rebecca Purple (#663399). oklch(45% 0.126 310.6), rgb(107, 61, 136).
Aa
White text reads best on this color (7.92:1).
About this color
#6B3D88 is a dark, moderately saturated purple. In OKLCH its lightness is 45%, its chroma 0.126 and its hue 311°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.040 away. White text reads best on it, at 7.92:1.
| Hue family | Purples |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.126) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.64:1 |
| White text | 7.92:1 |
Values
| HEX | #6B3D88 |
| RGB | rgb(107, 61, 136) |
| HSL | hsl(277, 38%, 39%) |
| OKLCH | oklch(45% 0.126 310.6) |
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 #6B3D88 | 7.92:1 | AAA | Lc -91.9 | Preferred for body text |
| Black text on #6B3D88 | 2.64:1 | Fails | Lc 16.8 | Dividers and decoration only |
| #6B3D88 text on white | 7.92:1 | AAA | Lc 87.2 | Fine for body text |
| #6B3D88 text on black | 2.64:1 | Fails | Lc -14.9 | 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
#F7F4FA
oklch(97.1% 0.009 308.4)
-
Step 100
100
#EEE6F5
oklch(93.6% 0.022 309.6)
-
Step 200
200
#E2D2EE
oklch(88.5% 0.042 310.9)
-
Step 300
300
#D0B4E4
oklch(81% 0.073 311)
-
Step 400
400
#B88BD7
oklch(70.7% 0.118 310.7)
-
Step 500
500
#A66CCC
oklch(63.1% 0.151 310.6)
-
Step 600
600
#9151B9
oklch(55.5% 0.165 310.5)
-
Step 700
700
#7C419F
oklch(49.1% 0.153 311)
-
Step 800
800 (this color)
#6B3D88
oklch(45% 0.126 310.6)
-
Step 900
900
#523068
oklch(37.7% 0.099 310.5)
-
Step 950
950
#301D3D
oklch(27.1% 0.062 310.2)
#6B3D88 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) | #284F8B | 0.105 |
| Deuteranopia (no green cones) | #375286 | 0.095 |
| Tritanopia (no blue cones) | #674A5C | 0.089 |
| Achromatopsia (no color) | #515151 | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B3D88
#6B3D88
oklch(45% 0.126 310.6)
- #3D6200
#3D6200
oklch(45.1% 0.122 130.5)
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 #6B3D88, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.040
- Dark Slate Blue #483D8B ΔE 0.064
- Light Eggplant #894585 ΔE 0.064
- Twilight #4E518B ΔE 0.067
- Blueberry #464196 ΔE 0.069
- Dusk #4E5481 ΔE 0.077
- Warm Purple #952E8F ΔE 0.084
- Purple #800080 ΔE 0.088
Use #6B3D88 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.