#684A9B
Closest named color: Rebecca Purple (#663399). oklch(48% 0.128 298.6), rgb(104, 74, 155).
Aa
White text reads best on this color (6.90:1).
About this color
#684A9B is a medium-dark, moderately saturated purple. In OKLCH its lightness is 48%, its chroma 0.128 and its hue 299°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.053 away. White text reads best on it, at 6.90:1.
| Hue family | Purples |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.128) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 3.04:1 |
| White text | 6.90:1 |
Values
| HEX | #684A9B |
| RGB | rgb(104, 74, 155) |
| HSL | hsl(262, 35%, 45%) |
| OKLCH | oklch(48% 0.128 298.6) |
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 #684A9B | 6.90:1 | AA | Lc -88.6 | Fine for body text |
| Black text on #684A9B | 3.04:1 | AA large text | Lc 20.4 | Dividers and decoration only |
| #684A9B text on white | 6.90:1 | AA | Lc 83.7 | Fine for body text |
| #684A9B text on black | 3.04:1 | AA large text | Lc -18.3 | 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 700.
-
Step 50
50
#F6F4FA
oklch(97% 0.008 301.4)
-
Step 100
100
#EBE7F5
oklch(93.5% 0.019 299.1)
-
Step 200
200
#DCD5ED
oklch(88.6% 0.033 299)
-
Step 300
300
#C5B8E4
oklch(80.8% 0.063 298.5)
-
Step 400
400
#A893D6
oklch(70.7% 0.098 298.2)
-
Step 500
500
#9477CB
oklch(63.1% 0.126 298.6)
-
Step 600
600
#7F5EB8
oklch(55.6% 0.138 298.8)
-
Step 700
700 (this color)
#684A9B
oklch(48% 0.128 298.6)
-
Step 800
800
#574080
oklch(42.7% 0.105 298.5)
-
Step 900
900
#483767
oklch(37.8% 0.082 298.8)
-
Step 950
950
#2A203C
oklch(26.9% 0.052 299.3)
#684A9B 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) | #2D5A9E | 0.086 |
| Deuteranopia (no green cones) | #355999 | 0.079 |
| Tritanopia (no blue cones) | #5D5A6B | 0.101 |
| Achromatopsia (no color) | #5A5A5A | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #684A9B
#684A9B
oklch(48% 0.128 298.6)
- #586600
#586600
oklch(48.1% 0.113 118.7)
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 #684A9B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.053
- Twilight #4E518B ΔE 0.054
- Blueberry #464196 ΔE 0.065
- Dusk #4E5481 ΔE 0.068
- Iris #6258C4 ΔE 0.070
- Light Eggplant #894585 ΔE 0.070
- Dark Slate Blue #483D8B ΔE 0.071
- Dusky Blue #475F94 ΔE 0.074
Use #684A9B 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.