#684B8E
Closest named color: Twilight (#4E518B). oklch(47.4% 0.109 302.4), rgb(104, 75, 142).
Aa
White text reads best on this color (7.03:1).
About this color
#684B8E is a medium-dark, moderately saturated purple. In OKLCH its lightness is 47%, its chroma 0.109 and its hue 302°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.045 away. White text reads best on it, at 7.03:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.109) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.98:1 |
| White text | 7.03:1 |
Values
| HEX | #684B8E |
| RGB | rgb(104, 75, 142) |
| HSL | hsl(266, 31%, 43%) |
| OKLCH | oklch(47.4% 0.109 302.4) |
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 #684B8E | 7.03:1 | AAA | Lc -89.2 | Fine for body text |
| Black text on #684B8E | 2.98:1 | Fails | Lc 19.8 | Dividers and decoration only |
| #684B8E text on white | 7.03:1 | AAA | Lc 84.2 | Fine for body text |
| #684B8E text on black | 2.98:1 | Fails | Lc -17.8 | 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
#ECE8F3
oklch(93.7% 0.015 302.5)
-
Step 200
200
#DCD5EA
oklch(88.5% 0.029 301)
-
Step 300
300
#C7B9DD
oklch(80.9% 0.052 302.9)
-
Step 400
400
#AA94CC
oklch(70.6% 0.084 302.3)
-
Step 500
500
#9679BF
oklch(63.1% 0.107 302.5)
-
Step 600
600
#8161AC
oklch(55.7% 0.117 302.4)
-
Step 700
700 (this color)
#684B8E
oklch(47.4% 0.109 302.4)
-
Step 800
800
#594277
oklch(42.8% 0.089 302.8)
-
Step 900
900
#493860
oklch(37.7% 0.069 302.8)
-
Step 950
950
#2B2138
oklch(27% 0.044 303.6)
#684B8E 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) | #385890 | 0.075 |
| Deuteranopia (no green cones) | #3F598C | 0.070 |
| Tritanopia (no blue cones) | #615766 | 0.083 |
| Achromatopsia (no color) | #595959 | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #684B8E
#684B8E
oklch(47.4% 0.109 302.4)
- #51650F
#51650F
oklch(47.4% 0.109 122.7)
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 #684B8E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.045
- Dusk #4E5481 ΔE 0.054
- Rebecca Purple #663399 ΔE 0.062
- Light Eggplant #894585 ΔE 0.062
- Muted Purple #805B87 ΔE 0.067
- Dusty Grape #545775 ΔE 0.067
- Blueberry #464196 ΔE 0.068
- Dusky Blue #475F94 ΔE 0.069
Use #684B8E 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.