#673AB3
Closest named color: Bluey Purple (#6241C7). oklch(47.1% 0.181 295.7), rgb(103, 58, 179).
Aa
White text reads best on this color (7.41:1).
About this color
#673AB3 is a medium-dark, vivid purple. In OKLCH its lightness is 47%, its chroma 0.181 and its hue 296°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Bluey Purple (#6241C7), ΔE 0.036 away. White text reads best on it, at 7.41:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.181) |
| Temperature | in between |
| Nearest name | Bluey Purple (#6241C7) |
| Black text | 2.83:1 |
| White text | 7.41:1 |
Values
| HEX | #673AB3 |
| RGB | rgb(103, 58, 179) |
| HSL | hsl(262, 51%, 46%) |
| OKLCH | oklch(47.1% 0.181 295.7) |
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 #673AB3 | 7.41:1 | AAA | Lc -90.0 | Preferred for body text |
| Black text on #673AB3 | 2.83:1 | Fails | Lc 18.9 | Dividers and decoration only |
| #673AB3 text on white | 7.41:1 | AAA | Lc 85.2 | Fine for body text |
| #673AB3 text on black | 2.83:1 | Fails | Lc -16.9 | 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
#F6F4FD
oklch(97.1% 0.012 296.4)
-
Step 100
100
#EBE7F9
oklch(93.6% 0.024 296.1)
-
Step 200
200
#DBD3F7
oklch(88.5% 0.05 295.5)
-
Step 300
300
#C5B6F4
oklch(81% 0.088 295.5)
-
Step 400
400
#A88DEE
oklch(70.7% 0.14 295.4)
-
Step 500
500
#956DE8
oklch(63.2% 0.179 295.9)
-
Step 600
600
#8051D6
oklch(55.6% 0.195 295.7)
-
Step 700
700 (this color)
#673AB3
oklch(47.1% 0.181 295.7)
-
Step 800
800
#583696
oklch(42.6% 0.15 295.7)
-
Step 900
900
#483078
oklch(37.7% 0.118 295.5)
-
Step 950
950
#2A1D46
oklch(27% 0.074 295.6)
#673AB3 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) | #0056B7 | 0.116 |
| Deuteranopia (no green cones) | #0054B1 | 0.116 |
| Tritanopia (no blue cones) | #535772 | 0.140 |
| Achromatopsia (no color) | #555555 | 0.183 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #673AB3
#673AB3
oklch(47.1% 0.181 295.7)
- #596200
#596200
oklch(47.2% 0.108 115.8)
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 #673AB3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluey Purple #6241C7 ΔE 0.036
- Rebecca Purple #663399 ΔE 0.044
- Blue With A Hint Of Purple #533CC6 ΔE 0.047
- Blurple #5539CC ΔE 0.052
- Grape #7209B7 ΔE 0.060
- Purple Blue #5D21D0 ΔE 0.063
- Iris #6258C4 ΔE 0.069
- Blueberry #464196 ΔE 0.074
Use #673AB3 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.