#673590
Closest named color: Rebecca Purple (#663399). oklch(43.8% 0.147 306.6), rgb(103, 53, 144).
Aa
White text reads best on this color (8.43:1).
About this color
#673590 is a dark, vivid purple. In OKLCH its lightness is 44%, its chroma 0.147 and its hue 307°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.016 away. White text reads best on it, at 8.43:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | vivid (0.147) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.48:1 |
| White text | 8.43:1 |
Values
| HEX | #673590 |
| RGB | rgb(103, 53, 144) |
| HSL | hsl(273, 46%, 39%) |
| OKLCH | oklch(43.8% 0.147 306.6) |
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 #673590 | 8.43:1 | AAA | Lc -93.2 | Preferred for body text |
| Black text on #673590 | 2.48:1 | Fails | Lc 15.4 | Dividers and decoration only |
| #673590 text on white | 8.43:1 | AAA | Lc 88.6 | Fine for body text |
| #673590 text on black | 2.48:1 | Fails | Lc -13.6 | Not readable |
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 800.
-
Step 50
50
#F7F4FC
oklch(97.2% 0.011 303.1)
-
Step 100
100
#EEE6F7
oklch(93.6% 0.024 307)
-
Step 200
200
#E1D1F3
oklch(88.4% 0.049 306.6)
-
Step 300
300
#CFB2ED
oklch(80.8% 0.087 306.9)
-
Step 400
400
#B788E4
oklch(70.7% 0.139 306.7)
-
Step 500
500
#A567DB
oklch(63% 0.176 306.7)
-
Step 600
600
#904BC9
oklch(55.6% 0.191 306.4)
-
Step 700
700
#7B3BAE
oklch(49.1% 0.178 306.5)
-
Step 800
800 (this color)
#673590
oklch(43.8% 0.147 306.6)
-
Step 900
900
#512D70
oklch(37.6% 0.114 306.5)
-
Step 950
950
#301B42
oklch(27% 0.073 307)
#673590 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) | #034B93 | 0.125 |
| Deuteranopia (no green cones) | #234D8E | 0.111 |
| Tritanopia (no blue cones) | #60475D | 0.105 |
| Achromatopsia (no color) | #4D4D4D | 0.148 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #673590
#673590
oklch(43.8% 0.147 306.6)
- #425C00
#425C00
oklch(43.7% 0.112 126.3)
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 #673590, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.016
- Dark Slate Blue #483D8B ΔE 0.058
- Blueberry #464196 ΔE 0.063
- Twilight #4E518B ΔE 0.079
- Purple #800080 ΔE 0.081
- Grape #7209B7 ΔE 0.082
- Light Eggplant #894585 ΔE 0.084
- Chrysanthemum #560BAD ΔE 0.086
Use #673590 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.