#684BBE
Closest named color: Bluey Purple (#6241C7). oklch(50.6% 0.172 290.5), rgb(104, 75, 190).
Aa
White text reads best on this color (6.29:1).
About this color
#684BBE is a medium-dark, vivid purple. In OKLCH its lightness is 51%, its chroma 0.172 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Bluey Purple (#6241C7), ΔE 0.029 away. White text reads best on it, at 6.29:1.
| Hue family | Purples |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.172) |
| Temperature | in between |
| Nearest name | Bluey Purple (#6241C7) |
| Black text | 3.33:1 |
| White text | 6.29:1 |
Values
| HEX | #684BBE |
| RGB | rgb(104, 75, 190) |
| HSL | hsl(255, 47%, 52%) |
| OKLCH | oklch(50.6% 0.172 290.5) |
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 #684BBE | 6.29:1 | AA | Lc -86.1 | Fine for body text |
| Black text on #684BBE | 3.33:1 | AA large text | Lc 23.1 | Dividers and decoration only |
| #684BBE text on white | 6.29:1 | AA | Lc 80.9 | Fine for body text |
| #684BBE text on black | 3.33:1 | AA large text | Lc -20.9 | 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
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#E9E7F9
oklch(93.5% 0.024 291)
-
Step 200
200
#D8D4F6
oklch(88.4% 0.047 290.8)
-
Step 300
300
#C0B8F3
oklch(81% 0.083 290.6)
-
Step 400
400
#A191ED
oklch(70.8% 0.133 290.6)
-
Step 500
500
#8B72E7
oklch(63% 0.17 290.5)
-
Step 600
600
#7757D5
oklch(55.6% 0.185 290.8)
-
Step 700
700 (this color)
#684BBE
oklch(50.6% 0.172 290.5)
-
Step 800
800
#513B96
oklch(42.7% 0.143 290.2)
-
Step 900
900
#433377
oklch(37.6% 0.112 290.9)
-
Step 950
950
#271F46
oklch(27.1% 0.07 290.3)
#684BBE 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) | #0062C2 | 0.103 |
| Deuteranopia (no green cones) | #005DBC | 0.102 |
| Tritanopia (no blue cones) | #4E657D | 0.140 |
| Achromatopsia (no color) | #606060 | 0.173 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #684BBE
#684BBE
oklch(50.6% 0.172 290.5)
- #696A00
#696A00
oklch(50.7% 0.111 110.4)
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 #684BBE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluey Purple #6241C7 ΔE 0.029
- Iris #6258C4 ΔE 0.031
- Slate Blue #6A5ACD ΔE 0.041
- Light Indigo #6D5ACF ΔE 0.043
- Blue With A Hint Of Purple #533CC6 ΔE 0.052
- Dark Periwinkle #665FD1 ΔE 0.053
- Blurple #5539CC ΔE 0.057
- Warm Blue #4B57DB ΔE 0.065
Use #684BBE 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.