#673790
Closest named color: Rebecca Purple (#663399). oklch(44.1% 0.144 306.2), rgb(103, 55, 144).
Aa
White text reads best on this color (8.31:1).
About this color
#673790 is a dark, vivid purple. In OKLCH its lightness is 44%, its chroma 0.144 and its hue 306°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.018 away. White text reads best on it, at 8.31:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | vivid (0.144) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.52:1 |
| White text | 8.31:1 |
Values
| HEX | #673790 |
| RGB | rgb(103, 55, 144) |
| HSL | hsl(272, 45%, 39%) |
| OKLCH | oklch(44.1% 0.144 306.2) |
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 #673790 | 8.31:1 | AAA | Lc -92.9 | Preferred for body text |
| Black text on #673790 | 2.52:1 | Fails | Lc 15.7 | Dividers and decoration only |
| #673790 text on white | 8.31:1 | AAA | Lc 88.3 | Fine for body text |
| #673790 text on black | 2.52:1 | Fails | Lc -13.9 | 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
#E1D2F2
oklch(88.6% 0.046 306.6)
-
Step 300
300
#CEB3EC
oklch(80.9% 0.084 306.1)
-
Step 400
400
#B689E3
oklch(70.7% 0.135 306.2)
-
Step 500
500
#A468DA
oklch(63% 0.173 306.4)
-
Step 600
600
#8F4CC8
oklch(55.5% 0.188 306.1)
-
Step 700
700
#7A3CAC
oklch(49% 0.174 306.5)
-
Step 800
800 (this color)
#673790
oklch(44.1% 0.144 306.2)
-
Step 900
900
#512E70
oklch(37.8% 0.113 306.2)
-
Step 950
950
#2F1C41
oklch(27% 0.07 306)
#673790 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) | #0C4D93 | 0.121 |
| Deuteranopia (no green cones) | #264E8E | 0.107 |
| Tritanopia (no blue cones) | #60495E | 0.104 |
| Achromatopsia (no color) | #4E4E4E | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #673790
#673790
oklch(44.1% 0.144 306.2)
- #435D00
#435D00
oklch(44.1% 0.112 126.2)
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 #673790, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.018
- Dark Slate Blue #483D8B ΔE 0.057
- Blueberry #464196 ΔE 0.061
- Twilight #4E518B ΔE 0.076
- Light Eggplant #894585 ΔE 0.082
- Purple #800080 ΔE 0.083
- Grape #7209B7 ΔE 0.085
- Chrysanthemum #560BAD ΔE 0.089
Use #673790 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.