#673C70
Closest named color: Brownish Purple (#76424E). oklch(42.9% 0.097 320.5), rgb(103, 60, 112).
Aa
White text reads best on this color (8.54:1).
About this color
#673C70 is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.097 and its hue 321°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Brownish Purple (#76424E), ΔE 0.071 away. White text reads best on it, at 8.54:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.097) |
| Temperature | in between |
| Nearest name | Brownish Purple (#76424E) |
| Black text | 2.45:1 |
| White text | 8.54:1 |
Values
| HEX | #673C70 |
| RGB | rgb(103, 60, 112) |
| HSL | hsl(290, 30%, 34%) |
| OKLCH | oklch(42.9% 0.097 320.5) |
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 #673C70 | 8.54:1 | AAA | Lc -93.7 | Preferred for body text |
| Black text on #673C70 | 2.45:1 | Fails | Lc 14.8 | Not readable |
| #673C70 text on white | 8.54:1 | AAA | Lc 89.2 | Fine for body text |
| #673C70 text on black | 2.45:1 | Fails | Lc -13.0 | 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
#F8F4F9
oklch(97.2% 0.008 319.4)
-
Step 100
100
#EFE6F1
oklch(93.5% 0.018 320.1)
-
Step 200
200
#E3D3E6
oklch(88.5% 0.031 320.9)
-
Step 300
300
#D2B5D8
oklch(80.9% 0.058 320.5)
-
Step 400
400
#BA8EC4
oklch(70.7% 0.091 320)
-
Step 500
500
#A971B4
oklch(63.1% 0.116 320.8)
-
Step 600
600
#9458A0
oklch(55.6% 0.126 320.8)
-
Step 700
700
#7E4889
oklch(49.1% 0.117 320.7)
-
Step 800
800 (this color)
#673C70
oklch(42.9% 0.097 320.5)
-
Step 900
900
#53335A
oklch(37.6% 0.076 320.2)
-
Step 950
950
#311E35
oklch(27% 0.049 320.5)
#673C70 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) | #354972 | 0.086 |
| Deuteranopia (no green cones) | #404E6E | 0.079 |
| Tritanopia (no blue cones) | #684350 | 0.062 |
| Achromatopsia (no color) | #4C4C4C | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #673C70
#673C70
oklch(42.9% 0.097 320.5)
- #2F5C26
#2F5C26
oklch(42.9% 0.097 140.4)
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 #673C70, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brownish Purple #76424E ΔE 0.071
- Dark Slate Blue #483D8B ΔE 0.072
- Twilight #4E518B ΔE 0.073
- Dusk #4E5481 ΔE 0.074
- Rebecca Purple #663399 ΔE 0.074
- Light Eggplant #894585 ΔE 0.077
- Dusty Grape #545775 ΔE 0.077
- Purple Brown #673A3F ΔE 0.081
Use #673C70 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.