#673E9D
Closest named color: Rebecca Purple (#663399). oklch(46% 0.149 300.5), rgb(103, 62, 157).
Aa
White text reads best on this color (7.62:1).
About this color
#673E9D is a medium-dark, vivid purple. In OKLCH its lightness is 46%, its chroma 0.149 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.024 away. White text reads best on it, at 7.62:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.149) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.75:1 |
| White text | 7.62:1 |
Values
| HEX | #673E9D |
| RGB | rgb(103, 62, 157) |
| HSL | hsl(266, 43%, 43%) |
| OKLCH | oklch(46% 0.149 300.5) |
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 #673E9D | 7.62:1 | AAA | Lc -90.9 | Preferred for body text |
| Black text on #673E9D | 2.75:1 | Fails | Lc 17.9 | Dividers and decoration only |
| #673E9D text on white | 7.62:1 | AAA | Lc 86.1 | Fine for body text |
| #673E9D text on black | 2.75:1 | Fails | Lc -15.9 | 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
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#ECE7F6
oklch(93.6% 0.021 301.1)
-
Step 200
200
#DDD4F0
oklch(88.6% 0.039 300.2)
-
Step 300
300
#C8B6E9
oklch(80.8% 0.073 300.9)
-
Step 400
400
#AC8FDE
oklch(70.6% 0.117 300.3)
-
Step 500
500
#9972D4
oklch(63.2% 0.147 300.6)
-
Step 600
600
#8458C1
oklch(55.7% 0.16 300.7)
-
Step 700
700 (this color)
#673E9D
oklch(46% 0.149 300.5)
-
Step 800
800
#5B3B87
oklch(42.7% 0.123 300.7)
-
Step 900
900
#4A336C
oklch(37.6% 0.097 300.5)
-
Step 950
950
#2B1F3F
oklch(27% 0.059 299.7)
#673E9D 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) | #0853A0 | 0.114 |
| Deuteranopia (no green cones) | #20539B | 0.104 |
| Tritanopia (no blue cones) | #5C5267 | 0.114 |
| Achromatopsia (no color) | #545454 | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #673E9D
#673E9D
oklch(46% 0.149 300.5)
- #506100
#506100
oklch(46.2% 0.111 120.8)
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 #673E9D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.024
- Blueberry #464196 ΔE 0.058
- Dark Slate Blue #483D8B ΔE 0.063
- Bluey Purple #6241C7 ΔE 0.068
- Twilight #4E518B ΔE 0.070
- Blue With A Hint Of Purple #533CC6 ΔE 0.076
- Grape #7209B7 ΔE 0.081
- Light Eggplant #894585 ΔE 0.082
Use #673E9D 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.