#673971
Closest named color: Rebecca Purple (#663399). oklch(42.5% 0.104 320.3), rgb(103, 57, 113).
Aa
White text reads best on this color (8.74:1).
About this color
#673971 is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.104 and its hue 320°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.070 away. White text reads best on it, at 8.74:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.104) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.40:1 |
| White text | 8.74:1 |
Values
| HEX | #673971 |
| RGB | rgb(103, 57, 113) |
| HSL | hsl(289, 33%, 33%) |
| OKLCH | oklch(42.5% 0.104 320.3) |
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 #673971 | 8.74:1 | AAA | Lc -94.2 | Preferred for body text |
| Black text on #673971 | 2.40:1 | Fails | Lc 14.3 | Not readable |
| #673971 text on white | 8.74:1 | AAA | Lc 89.7 | Fine for body text |
| #673971 text on black | 2.40:1 | Fails | Lc -12.5 | 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
#E4D2E7
oklch(88.5% 0.034 321.4)
-
Step 300
300
#D3B4D9
oklch(80.8% 0.061 320.8)
-
Step 400
400
#BC8DC6
oklch(70.8% 0.096 320.4)
-
Step 500
500
#AB6FB8
oklch(63.2% 0.125 320.3)
-
Step 600
600
#9656A4
oklch(55.7% 0.135 320.2)
-
Step 700
700
#7F468C
oklch(49.1% 0.125 320)
-
Step 800
800 (this color)
#673971
oklch(42.5% 0.104 320.3)
-
Step 900
900
#54325C
oklch(37.6% 0.081 319.8)
-
Step 950
950
#321E36
oklch(27.2% 0.051 320.8)
#673971 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) | #304873 | 0.095 |
| Deuteranopia (no green cones) | #3D4D6F | 0.086 |
| Tritanopia (no blue cones) | #68404F | 0.066 |
| Achromatopsia (no color) | #4B4B4B | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #673971
#673971
oklch(42.5% 0.104 320.3)
- #2B5C21
#2B5C21
oklch(42.6% 0.104 140.4)
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 #673971, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.070
- Dark Slate Blue #483D8B ΔE 0.071
- Brownish Purple #76424E ΔE 0.077
- Twilight #4E518B ΔE 0.077
- Light Eggplant #894585 ΔE 0.079
- Dusk #4E5481 ΔE 0.080
- Blueberry #464196 ΔE 0.084
- Dusty Grape #545775 ΔE 0.085
Use #673971 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.