#683FA8
Closest named color: Rebecca Purple (#663399). oklch(47.1% 0.162 297.9), rgb(104, 63, 168).
Aa
White text reads best on this color (7.32:1).
About this color
#683FA8 is a medium-dark, vivid purple. In OKLCH its lightness is 47%, its chroma 0.162 and its hue 298°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.034 away. White text reads best on it, at 7.32:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.162) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.86:1 |
| White text | 7.32:1 |
Values
| HEX | #683FA8 |
| RGB | rgb(104, 63, 168) |
| HSL | hsl(263, 45%, 45%) |
| OKLCH | oklch(47.1% 0.162 297.9) |
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 #683FA8 | 7.32:1 | AAA | Lc -89.9 | Fine for body text |
| Black text on #683FA8 | 2.86:1 | Fails | Lc 19.0 | Dividers and decoration only |
| #683FA8 text on white | 7.32:1 | AAA | Lc 85.0 | Fine for body text |
| #683FA8 text on black | 2.86:1 | Fails | Lc -17.0 | 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
#F6F4FC
oklch(97.1% 0.011 297.6)
-
Step 100
100
#EBE7F7
oklch(93.6% 0.022 297.4)
-
Step 200
200
#DCD4F3
oklch(88.6% 0.043 297.3)
-
Step 300
300
#C6B6ED
oklch(80.8% 0.078 298)
-
Step 400
400
#AA8FE4
oklch(70.7% 0.124 297.8)
-
Step 500
500
#9670DC
oklch(63% 0.16 297.9)
-
Step 600
600
#8156CA
oklch(55.6% 0.173 297.6)
-
Step 700
700 (this color)
#683FA8
oklch(47.1% 0.162 297.9)
-
Step 800
800
#593A8D
oklch(42.7% 0.133 297.8)
-
Step 900
900
#493271
oklch(37.6% 0.105 298)
-
Step 950
950
#2B1E42
oklch(27% 0.066 298.6)
#683FA8 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) | #0056AB | 0.115 |
| Deuteranopia (no green cones) | #0E55A6 | 0.112 |
| Tritanopia (no blue cones) | #59566D | 0.125 |
| Achromatopsia (no color) | #565656 | 0.163 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #683FA8
#683FA8
oklch(47.1% 0.162 297.9)
- #566300
#566300
oklch(47.2% 0.11 118.3)
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 #683FA8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.034
- Bluey Purple #6241C7 ΔE 0.051
- Blue With A Hint Of Purple #533CC6 ΔE 0.062
- Blueberry #464196 ΔE 0.065
- Blurple #5539CC ΔE 0.069
- Iris #6258C4 ΔE 0.069
- Dark Slate Blue #483D8B ΔE 0.074
- Grape #7209B7 ΔE 0.074
Use #683FA8 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.