#673A85
Closest named color: Rebecca Purple (#663399). oklch(43.8% 0.126 309.9), rgb(103, 58, 133).
Aa
White text reads best on this color (8.33:1).
About this color
#673A85 is a dark, moderately saturated purple. In OKLCH its lightness is 44%, its chroma 0.126 and its hue 310°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.038 away. White text reads best on it, at 8.33:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.126) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.52:1 |
| White text | 8.33:1 |
Values
| HEX | #673A85 |
| RGB | rgb(103, 58, 133) |
| HSL | hsl(276, 39%, 37%) |
| OKLCH | oklch(43.8% 0.126 309.9) |
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 #673A85 | 8.33:1 | AAA | Lc -93.0 | Preferred for body text |
| Black text on #673A85 | 2.52:1 | Fails | Lc 15.6 | Dividers and decoration only |
| #673A85 text on white | 8.33:1 | AAA | Lc 88.4 | Fine for body text |
| #673A85 text on black | 2.52:1 | Fails | Lc -13.8 | 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
#F7F4FB
oklch(97.1% 0.01 305.4)
-
Step 100
100
#EEE6F5
oklch(93.6% 0.022 309.6)
-
Step 200
200
#E1D2EE
oklch(88.4% 0.041 309.4)
-
Step 300
300
#CFB4E5
oklch(80.9% 0.074 309.6)
-
Step 400
400
#B78BD8
oklch(70.7% 0.119 309.8)
-
Step 500
500
#A56CCD
oklch(63.1% 0.151 309.8)
-
Step 600
600
#9052BA
oklch(55.6% 0.164 309.6)
-
Step 700
700
#7B42A0
oklch(49.2% 0.152 309.9)
-
Step 800
800 (this color)
#673A85
oklch(43.8% 0.126 309.9)
-
Step 900
900
#513068
oklch(37.6% 0.099 309.7)
-
Step 950
950
#301D3D
oklch(27.1% 0.062 310.2)
#673A85 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) | #234C87 | 0.106 |
| Deuteranopia (no green cones) | #334F83 | 0.094 |
| Tritanopia (no blue cones) | #63475A | 0.087 |
| Achromatopsia (no color) | #4E4E4E | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #673A85
#673A85
oklch(43.8% 0.126 309.9)
- #3C5E00
#3C5E00
oklch(43.9% 0.118 129.8)
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 #673A85, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.038
- Dark Slate Blue #483D8B ΔE 0.057
- Blueberry #464196 ΔE 0.065
- Twilight #4E518B ΔE 0.069
- Light Eggplant #894585 ΔE 0.074
- Dusk #4E5481 ΔE 0.079
- Purple #800080 ΔE 0.086
- Warm Purple #952E8F ΔE 0.092
Use #673A85 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.