#684F91
Closest named color: Twilight (#4E518B). oklch(48.3% 0.106 299.9), rgb(104, 79, 145).
Aa
White text reads best on this color (6.73:1).
About this color
#684F91 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 48%, its chroma 0.106 and its hue 300°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.044 away. White text reads best on it, at 6.73:1.
| Hue family | Purples |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.106) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 3.11:1 |
| White text | 6.73:1 |
Values
| HEX | #684F91 |
| RGB | rgb(104, 79, 145) |
| HSL | hsl(263, 29%, 44%) |
| OKLCH | oklch(48.3% 0.106 299.9) |
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 #684F91 | 6.73:1 | AA | Lc -88.1 | Fine for body text |
| Black text on #684F91 | 3.11:1 | AA large text | Lc 20.9 | Dividers and decoration only |
| #684F91 text on white | 6.73:1 | AA | Lc 83.1 | Fine for body text |
| #684F91 text on black | 3.11:1 | AA large text | Lc -18.8 | 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
#F6F4F9
oklch(97% 0.007 304.2)
-
Step 100
100
#EBE8F3
oklch(93.7% 0.015 298.6)
-
Step 200
200
#DCD5EA
oklch(88.5% 0.029 301)
-
Step 300
300
#C5BADD
oklch(80.9% 0.05 299.6)
-
Step 400
400
#A895CD
oklch(70.7% 0.083 299.8)
-
Step 500
500
#937ABF
oklch(63% 0.105 300.1)
-
Step 600
600
#7E62AC
oklch(55.6% 0.115 300.1)
-
Step 700
700 (this color)
#684F91
oklch(48.3% 0.106 299.9)
-
Step 800
800
#574378
oklch(42.8% 0.088 300.1)
-
Step 900
900
#473960
oklch(37.7% 0.067 299.7)
-
Step 950
950
#2A2138
oklch(26.9% 0.043 301.5)
#684F91 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) | #3C5B93 | 0.068 |
| Deuteranopia (no green cones) | #415B8F | 0.064 |
| Tritanopia (no blue cones) | #605B69 | 0.083 |
| Achromatopsia (no color) | #5B5B5B | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #684F91
#684F91
oklch(48.3% 0.106 299.9)
- #576713
#576713
oklch(48.4% 0.106 120.3)
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 #684F91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.044
- Dusk #4E5481 ΔE 0.052
- Muted Purple #805B87 ΔE 0.060
- Dusky Blue #475F94 ΔE 0.062
- Light Eggplant #894585 ΔE 0.064
- Dusty Grape #545775 ΔE 0.065
- Denim Blue #3B5B92 ΔE 0.069
- Dull Purple #84597E ΔE 0.070
Use #684F91 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.