#673C7F
Closest named color: Rebecca Purple (#663399). oklch(43.8% 0.115 312.2), rgb(103, 60, 127).
Aa
White text reads best on this color (8.30:1).
About this color
#673C7F is a dark, moderately saturated purple. In OKLCH its lightness is 44%, its chroma 0.115 and its hue 312°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.050 away. White text reads best on it, at 8.30:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.115) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.52:1 |
| White text | 8.30:1 |
Values
| HEX | #673C7F |
| RGB | rgb(103, 60, 127) |
| HSL | hsl(279, 36%, 37%) |
| OKLCH | oklch(43.8% 0.115 312.2) |
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 #673C7F | 8.30:1 | AAA | Lc -93.0 | Preferred for body text |
| Black text on #673C7F | 2.52:1 | Fails | Lc 15.6 | Dividers and decoration only |
| #673C7F text on white | 8.30:1 | AAA | Lc 88.4 | Fine for body text |
| #673C7F 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
#F7F4FA
oklch(97.1% 0.009 308.4)
-
Step 100
100
#EEE6F4
oklch(93.5% 0.021 311.1)
-
Step 200
200
#E2D2EB
oklch(88.4% 0.038 313.6)
-
Step 300
300
#CFB5E1
oklch(81% 0.067 311.4)
-
Step 400
400
#B78DD1
oklch(70.7% 0.107 312)
-
Step 500
500
#A56FC5
oklch(63.1% 0.137 311.9)
-
Step 600
600
#9055B1
oklch(55.5% 0.149 312.1)
-
Step 700
700
#7B4599
oklch(49.2% 0.139 312)
-
Step 800
800 (this color)
#673C7F
oklch(43.8% 0.115 312.2)
-
Step 900
900
#513264
oklch(37.7% 0.09 311.4)
-
Step 950
950
#301E3A
oklch(27.1% 0.055 312.7)
#673C7F 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) | #2C4C81 | 0.096 |
| Deuteranopia (no green cones) | #394F7D | 0.086 |
| Tritanopia (no blue cones) | #654757 | 0.080 |
| Achromatopsia (no color) | #4E4E4E | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #673C7F
#673C7F
oklch(43.8% 0.115 312.2)
- #385E0B
#385E0B
oklch(43.7% 0.115 132.3)
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 #673C7F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.050
- Dark Slate Blue #483D8B ΔE 0.060
- Twilight #4E518B ΔE 0.066
- Blueberry #464196 ΔE 0.069
- Light Eggplant #894585 ΔE 0.072
- Dusk #4E5481 ΔE 0.073
- Dusty Grape #545775 ΔE 0.084
- Purple #800080 ΔE 0.090
Use #673C7F 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.