#684388
Closest named color: Rebecca Purple (#663399). oklch(45.6% 0.115 307.2), rgb(104, 67, 136).
Aa
White text reads best on this color (7.64:1).
About this color
#684388 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 46%, its chroma 0.115 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 0.049 away. White text reads best on it, at 7.64:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.115) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.74:1 |
| White text | 7.64:1 |
Values
| HEX | #684388 |
| RGB | rgb(104, 67, 136) |
| HSL | hsl(272, 34%, 40%) |
| OKLCH | oklch(45.6% 0.115 307.2) |
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 #684388 | 7.64:1 | AAA | Lc -91.1 | Preferred for body text |
| Black text on #684388 | 2.74:1 | Fails | Lc 17.7 | Dividers and decoration only |
| #684388 text on white | 7.64:1 | AAA | Lc 86.3 | Fine for body text |
| #684388 text on black | 2.74:1 | 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
#F7F4FA
oklch(97.1% 0.009 308.4)
-
Step 100
100
#EDE7F4
oklch(93.6% 0.018 306.7)
-
Step 200
200
#DFD3ED
oklch(88.4% 0.037 306.4)
-
Step 300
300
#CCB6E3
oklch(81% 0.067 307.1)
-
Step 400
400
#B28ED5
oklch(70.6% 0.108 307)
-
Step 500
500
#A071C9
oklch(63.2% 0.136 307.5)
-
Step 600
600
#8B57B6
oklch(55.6% 0.15 307.5)
-
Step 700
700
#76479D
oklch(49.2% 0.139 307.3)
-
Step 800
800 (this color)
#684388
oklch(45.6% 0.115 307.2)
-
Step 900
900
#4E3366
oklch(37.7% 0.089 307.1)
-
Step 950
950
#2E1E3C
oklch(27% 0.058 307.5)
#684388 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) | #30528A | 0.089 |
| Deuteranopia (no green cones) | #3B5486 | 0.080 |
| Tritanopia (no blue cones) | #634F5F | 0.084 |
| Achromatopsia (no color) | #535353 | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #684388
#684388
oklch(45.6% 0.115 307.2)
- #456206
#456206
oklch(45.6% 0.115 127.3)
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 #684388, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.049
- Twilight #4E518B ΔE 0.054
- Dark Slate Blue #483D8B ΔE 0.061
- Dusk #4E5481 ΔE 0.063
- Light Eggplant #894585 ΔE 0.064
- Blueberry #464196 ΔE 0.065
- Dusty Grape #545775 ΔE 0.075
- Muted Purple #805B87 ΔE 0.081
Use #684388 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.