#684A8D
Closest named color: Twilight (#4E518B). oklch(47.2% 0.109 303.1), rgb(104, 74, 141).
Aa
White text reads best on this color (7.11:1).
About this color
#684A8D is a medium-dark, moderately saturated purple. In OKLCH its lightness is 47%, its chroma 0.109 and its hue 303°. 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 7.11:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.109) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.95:1 |
| White text | 7.11:1 |
Values
| HEX | #684A8D |
| RGB | rgb(104, 74, 141) |
| HSL | hsl(267, 31%, 42%) |
| OKLCH | oklch(47.2% 0.109 303.1) |
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 #684A8D | 7.11:1 | AAA | Lc -89.4 | Fine for body text |
| Black text on #684A8D | 2.95:1 | Fails | Lc 19.5 | Dividers and decoration only |
| #684A8D text on white | 7.11:1 | AAA | Lc 84.5 | Fine for body text |
| #684A8D text on black | 2.95:1 | Fails | Lc -17.5 | 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
#ECE8F2
oklch(93.7% 0.014 304.1)
-
Step 200
200
#DDD5EA
oklch(88.6% 0.03 303)
-
Step 300
300
#C7B9DD
oklch(80.9% 0.052 302.9)
-
Step 400
400
#AB94CC
oklch(70.7% 0.084 303.1)
-
Step 500
500
#9779BF
oklch(63.2% 0.107 303.2)
-
Step 600
600
#8261AB
oklch(55.7% 0.116 303.4)
-
Step 700
700 (this color)
#684A8D
oklch(47.2% 0.109 303.1)
-
Step 800
800
#594177
oklch(42.6% 0.091 303.3)
-
Step 900
900
#493860
oklch(37.7% 0.069 302.8)
-
Step 950
950
#2B2138
oklch(27% 0.044 303.6)
#684A8D 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) | #37578F | 0.076 |
| Deuteranopia (no green cones) | #3F588B | 0.070 |
| Tritanopia (no blue cones) | #625665 | 0.082 |
| Achromatopsia (no color) | #585858 | 0.110 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #684A8D
#684A8D
oklch(47.2% 0.109 303.1)
- #50650F
#50650F
oklch(47.3% 0.109 123.2)
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 #684A8D, 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 0.055
- Rebecca Purple #663399 ΔE 0.060
- Light Eggplant #894585 ΔE 0.062
- Dusty Grape #545775 ΔE 0.067
- Blueberry #464196 ΔE 0.068
- Muted Purple #805B87 ΔE 0.068
- Dark Slate Blue #483D8B ΔE 0.069
Use #684A8D 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.