#683C74
Closest named color: Rebecca Purple (#663399). oklch(43.3% 0.102 318.8), rgb(104, 60, 116).
Aa
White text reads best on this color (8.44:1).
About this color
#683C74 is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.102 and its hue 319°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.068 away. White text reads best on it, at 8.44:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.102) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.48:1 |
| White text | 8.44:1 |
Values
| HEX | #683C74 |
| RGB | rgb(104, 60, 116) |
| HSL | hsl(287, 32%, 35%) |
| OKLCH | oklch(43.3% 0.102 318.8) |
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 #683C74 | 8.44:1 | AAA | Lc -93.4 | Preferred for body text |
| Black text on #683C74 | 2.48:1 | Fails | Lc 15.1 | Dividers and decoration only |
| #683C74 text on white | 8.44:1 | AAA | Lc 88.8 | Fine for body text |
| #683C74 text on black | 2.48:1 | 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
#F8F4F9
oklch(97.2% 0.008 319.4)
-
Step 100
100
#EFE6F1
oklch(93.5% 0.018 320.1)
-
Step 200
200
#E3D3E7
oklch(88.6% 0.032 319.5)
-
Step 300
300
#D2B5DA
oklch(81% 0.06 318.9)
-
Step 400
400
#BA8DC7
oklch(70.6% 0.096 318.5)
-
Step 500
500
#A970B8
oklch(63.1% 0.122 319.1)
-
Step 600
600
#9457A4
oklch(55.6% 0.133 319)
-
Step 700
700
#7E478D
oklch(49.2% 0.123 318.7)
-
Step 800
800 (this color)
#683C74
oklch(43.3% 0.102 318.8)
-
Step 900
900
#53335C
oklch(37.7% 0.078 318.6)
-
Step 950
950
#311E36
oklch(27% 0.05 319.1)
#683C74 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) | #334A76 | 0.091 |
| Deuteranopia (no green cones) | #3F4F72 | 0.083 |
| Tritanopia (no blue cones) | #684452 | 0.067 |
| Achromatopsia (no color) | #4D4D4D | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #683C74
#683C74
oklch(43.3% 0.102 318.8)
- #305D22
#305D22
oklch(43.1% 0.102 138.9)
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 #683C74, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.068
- Dark Slate Blue #483D8B ΔE 0.070
- Twilight #4E518B ΔE 0.071
- Light Eggplant #894585 ΔE 0.073
- Dusk #4E5481 ΔE 0.073
- Brownish Purple #76424E ΔE 0.076
- Dusty Grape #545775 ΔE 0.079
- Blueberry #464196 ΔE 0.082
Use #683C74 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.