#673B7C
Closest named color: Rebecca Purple (#663399). oklch(43.4% 0.113 313.8), rgb(103, 59, 124).
Aa
White text reads best on this color (8.42:1).
About this color
#673B7C is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.113 and its hue 314°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.053 away. White text reads best on it, at 8.42:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.113) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.49:1 |
| White text | 8.42:1 |
Values
| HEX | #673B7C |
| RGB | rgb(103, 59, 124) |
| HSL | hsl(281, 36%, 36%) |
| OKLCH | oklch(43.4% 0.113 313.8) |
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 #673B7C | 8.42:1 | AAA | Lc -93.3 | Preferred for body text |
| Black text on #673B7C | 2.49:1 | Fails | Lc 15.2 | Dividers and decoration only |
| #673B7C text on white | 8.42:1 | AAA | Lc 88.8 | Fine for body text |
| #673B7C text on black | 2.49:1 | Fails | Lc -13.4 | 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
#F8F4FA
oklch(97.2% 0.009 314.8)
-
Step 100
100
#EFE6F3
oklch(93.6% 0.02 315.7)
-
Step 200
200
#E2D2EB
oklch(88.4% 0.038 313.6)
-
Step 300
300
#D0B4DF
oklch(80.8% 0.067 313.8)
-
Step 400
400
#B88CCF
oklch(70.6% 0.107 313.7)
-
Step 500
500
#A76EC2
oklch(63% 0.136 314.2)
-
Step 600
600
#9255AF
oklch(55.7% 0.147 313.8)
-
Step 700
700
#7C4596
oklch(49.1% 0.136 313.8)
-
Step 800
800 (this color)
#673B7C
oklch(43.4% 0.113 313.8)
-
Step 900
900
#523262
oklch(37.7% 0.087 313.6)
-
Step 950
950
#301D39
oklch(26.9% 0.056 314.3)
#673B7C 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) | #2C4B7E | 0.097 |
| Deuteranopia (no green cones) | #394E7A | 0.087 |
| Tritanopia (no blue cones) | #654556 | 0.076 |
| Achromatopsia (no color) | #4D4D4D | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #673B7C
#673B7C
oklch(43.4% 0.113 313.8)
- #355E11
#355E11
oklch(43.5% 0.114 134)
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 #673B7C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.053
- Dark Slate Blue #483D8B ΔE 0.062
- Twilight #4E518B ΔE 0.068
- Blueberry #464196 ΔE 0.072
- Light Eggplant #894585 ΔE 0.073
- Dusk #4E5481 ΔE 0.075
- Dusty Grape #545775 ΔE 0.084
- Purple #800080 ΔE 0.089
Use #673B7C 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.