#683391
Closest named color: Rebecca Purple (#663399). oklch(43.7% 0.152 307.2), rgb(104, 51, 145).
Aa
White text reads best on this color (8.49:1).
About this color
#683391 is a dark, vivid purple. In OKLCH its lightness is 44%, its chroma 0.152 and its hue 307°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.014 away. White text reads best on it, at 8.49:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | vivid (0.152) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.47:1 |
| White text | 8.49:1 |
Values
| HEX | #683391 |
| RGB | rgb(104, 51, 145) |
| HSL | hsl(274, 48%, 38%) |
| OKLCH | oklch(43.7% 0.152 307.2) |
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 #683391 | 8.49:1 | AAA | Lc -93.3 | Preferred for body text |
| Black text on #683391 | 2.47:1 | Fails | Lc 15.3 | Dividers and decoration only |
| #683391 text on white | 8.49:1 | AAA | Lc 88.7 | Fine for body text |
| #683391 text on black | 2.47:1 | Fails | Lc -13.5 | 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
#F7F3FC
oklch(97% 0.013 306)
-
Step 100
100
#EEE6F8
oklch(93.6% 0.025 305.8)
-
Step 200
200
#E2D1F3
oklch(88.5% 0.049 307.8)
-
Step 300
300
#D0B2EE
oklch(81% 0.089 307.2)
-
Step 400
400
#B887E5
oklch(70.7% 0.142 307.1)
-
Step 500
500
#A765DD
oklch(63.1% 0.182 307.4)
-
Step 600
600
#9248CB
oklch(55.6% 0.198 307.1)
-
Step 700
700
#7D39AF
oklch(49.2% 0.182 307.4)
-
Step 800
800 (this color)
#683391
oklch(43.7% 0.152 307.2)
-
Step 900
900
#522C71
oklch(37.7% 0.117 307.1)
-
Step 950
950
#301B42
oklch(27% 0.073 307)
#683391 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) | #004B94 | 0.129 |
| Deuteranopia (no green cones) | #204D8F | 0.117 |
| Tritanopia (no blue cones) | #61465D | 0.107 |
| Achromatopsia (no color) | #4D4D4D | 0.153 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #683391
#683391
oklch(43.7% 0.152 307.2)
- #405C00
#405C00
oklch(43.6% 0.113 127.3)
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 #683391, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.014
- Dark Slate Blue #483D8B ΔE 0.061
- Blueberry #464196 ΔE 0.066
- Purple #800080 ΔE 0.077
- Grape #7209B7 ΔE 0.078
- Chrysanthemum #560BAD ΔE 0.083
- Twilight #4E518B ΔE 0.084
- Dark Magenta #8B008B ΔE 0.085
Use #683391 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.