#684EA1
Closest named color: Twilight (#4E518B). oklch(49.1% 0.13 295.7), rgb(104, 78, 161).
Aa
White text reads best on this color (6.57:1).
About this color
#684EA1 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 49%, its chroma 0.130 and its hue 296°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.057 away. White text reads best on it, at 6.57:1.
| Hue family | Purples |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.130) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 3.19:1 |
| White text | 6.57:1 |
Values
| HEX | #684EA1 |
| RGB | rgb(104, 78, 161) |
| HSL | hsl(259, 35%, 47%) |
| OKLCH | oklch(49.1% 0.13 295.7) |
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 #684EA1 | 6.57:1 | AA | Lc -87.4 | Fine for body text |
| Black text on #684EA1 | 3.19:1 | AA large text | Lc 21.7 | Dividers and decoration only |
| #684EA1 text on white | 6.57:1 | AA | Lc 82.3 | Fine for body text |
| #684EA1 text on black | 3.19:1 | AA large text | Lc -19.6 | 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
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#EAE8F5
oklch(93.6% 0.018 293.1)
-
Step 200
200
#DAD5EE
oklch(88.5% 0.034 294.9)
-
Step 300
300
#C3B9E5
oklch(80.9% 0.062 295.4)
-
Step 400
400
#A694D8
oklch(70.8% 0.099 295.9)
-
Step 500
500
#9078CE
oklch(63.1% 0.128 295.3)
-
Step 600
600
#7B5FBB
oklch(55.6% 0.14 295.5)
-
Step 700
700 (this color)
#684EA1
oklch(49.1% 0.13 295.7)
-
Step 800
800
#554082
oklch(42.6% 0.107 296.2)
-
Step 900
900
#463769
oklch(37.7% 0.084 295.9)
-
Step 950
950
#29213D
oklch(27.1% 0.052 295.9)
#684EA1 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) | #2F5EA4 | 0.082 |
| Deuteranopia (no green cones) | #355C9F | 0.076 |
| Tritanopia (no blue cones) | #5B5E70 | 0.102 |
| Achromatopsia (no color) | #5D5D5D | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #684EA1
#684EA1
oklch(49.1% 0.13 295.7)
- #5E6800
#5E6800
oklch(49.2% 0.113 116.2)
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 #684EA1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.057
- Iris #6258C4 ΔE 0.058
- Rebecca Purple #663399 ΔE 0.062
- Dusky Blue #475F94 ΔE 0.070
- Bluey Purple #6241C7 ΔE 0.070
- Blueberry #464196 ΔE 0.071
- Dusk #4E5481 ΔE 0.071
- Slate Blue #6A5ACD ΔE 0.072
Use #684EA1 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.