#683685
Closest named color: Rebecca Purple (#663399). oklch(43.3% 0.133 311.3), rgb(104, 54, 133).
Aa
White text reads best on this color (8.55:1).
About this color
#683685 is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.133 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 0.035 away. White text reads best on it, at 8.55:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.133) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.45:1 |
| White text | 8.55:1 |
Values
| HEX | #683685 |
| RGB | rgb(104, 54, 133) |
| HSL | hsl(278, 42%, 37%) |
| OKLCH | oklch(43.3% 0.133 311.3) |
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 #683685 | 8.55:1 | AAA | Lc -93.6 | Preferred for body text |
| Black text on #683685 | 2.45:1 | Fails | Lc 15.0 | Not readable |
| #683685 text on white | 8.55:1 | AAA | Lc 89.0 | Fine for body text |
| #683685 text on black | 2.45:1 | Fails | Lc -13.2 | 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
#F8F4FB
oklch(97.2% 0.01 311.2)
-
Step 100
100
#EFE6F5
oklch(93.6% 0.022 312.2)
-
Step 200
200
#E2D2EF
oklch(88.6% 0.043 310.1)
-
Step 300
300
#D1B3E6
oklch(80.9% 0.077 311.2)
-
Step 400
400
#BA89D9
oklch(70.7% 0.125 311.6)
-
Step 500
500
#A869CF
oklch(63% 0.16 311.1)
-
Step 600
600
#944EBC
oklch(55.6% 0.174 311.4)
-
Step 700
700
#7E3EA2
oklch(49.1% 0.162 311.4)
-
Step 800
800 (this color)
#683685
oklch(43.3% 0.133 311.3)
-
Step 900
900
#532F69
oklch(37.7% 0.103 311.1)
-
Step 950
950
#311C3E
oklch(27.1% 0.066 311.2)
#683685 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) | #1C4A88 | 0.116 |
| Deuteranopia (no green cones) | #304D83 | 0.102 |
| Tritanopia (no blue cones) | #654458 | 0.091 |
| Achromatopsia (no color) | #4C4C4C | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #683685
#683685
oklch(43.3% 0.133 311.3)
- #385D00
#385D00
oklch(43.3% 0.119 131.2)
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 #683685, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.035
- Dark Slate Blue #483D8B ΔE 0.060
- Blueberry #464196 ΔE 0.069
- Twilight #4E518B ΔE 0.077
- Light Eggplant #894585 ΔE 0.078
- Purple #800080 ΔE 0.078
- Dusk #4E5481 ΔE 0.087
- Dark Magenta #8B008B ΔE 0.088
Use #683685 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.